diff --git a/src-ui/changes.html b/src-ui/changes.html
index 689b4dfc8..b1447d1dc 100644
--- a/src-ui/changes.html
+++ b/src-ui/changes.html
@@ -34,12 +34,12 @@
 <div style="margin-bottom: 5px;"><b>Latest types</b> (<em><a href="/list.html" target="_parent">all types</a></em>)</div>
 <ul>
   <li><a href="/p?tilecity" target="_parent">Tile City タイルシティー</a></li>
+  <li><a href="/p?turnrun" target="_parent">Turn and Run トツゲキループ</a></li>
+  <li><a href="/p?island" target="_parent">Inaba's Island アイランド</a></li>
   <li><a href="/p?balloon" target="_parent">Balloon Box 風船箱</a></li>
   <li><a href="/p?mintonette" target="_parent">Mintonette</a></li>
   <li><a href="/p?nibunnogo" target="_parent">Nibun-nogo ニブンノゴ</a></li>
   <li><a href="/p?timebomb" target="_parent">Time Bomb 時限爆弾</a></li>
-  <li><a href="/p?archipelago" target="_parent">Archipelago アーキペラゴ</a></li>
-  <li><a href="/p?yajirushi2" target="_parent">Yajirushi 2 見つめあう矢印２</a></li>
 </ul>
 </main>
 </body>
diff --git a/src-ui/img/island.png b/src-ui/img/island.png
new file mode 100644
index 000000000..6ac2f275b
Binary files /dev/null and b/src-ui/img/island.png differ
diff --git a/src-ui/js/ui/KeyPopup.js b/src-ui/js/ui/KeyPopup.js
index 52a4873ca..0239d2540 100644
--- a/src-ui/js/ui/KeyPopup.js
+++ b/src-ui/js/ui/KeyPopup.js
@@ -168,6 +168,7 @@ ui.keypopup = {
 		pencils: [10, 0],
 		minarism: [10, 10],
 		trainstations: [124, 0],
+		turnrun: [124, 0],
 		wafusuma: [10, 0],
 		kuroclone: [10, 0],
 		martini: [10, 0],
@@ -211,6 +212,7 @@ ui.keypopup = {
 		timebomb: [10, 0],
 		smullyan: [10, 0],
 		meidjuluk: [10, 0],
+		island: [10, 0],
 		archipelago: [10, 0],
 		yajirushi2: [4, 0],
 		nibunnogo: [4, 0],
diff --git a/src-ui/js/ui/MenuConfig.js b/src-ui/js/ui/MenuConfig.js
index 58f1243e9..96c4ad43e 100644
--- a/src-ui/js/ui/MenuConfig.js
+++ b/src-ui/js/ui/MenuConfig.js
@@ -132,6 +132,23 @@
 				case "bdwalk":
 					idname = "bdwalk_height";
 					break;
+				case "slither":
+				case "tslither":
+				case "swslither":
+				case "myopia":
+				case "lineofsight":
+					idname = "slither_full";
+					break;
+				case "mashu":
+				case "geradeweg":
+				case "disloop":
+				case "midloop":
+				case "ovotovata":
+				case "balance":
+				case "turnaround":
+				case "turnrun":
+					idname = "loop_full";
+					break;
 			}
 
 			if (typeof idname === "string") {
diff --git a/src-ui/js/ui/Misc.js b/src-ui/js/ui/Misc.js
index e2e272470..eefcd50bc 100755
--- a/src-ui/js/ui/Misc.js
+++ b/src-ui/js/ui/Misc.js
@@ -108,11 +108,10 @@ function toBGimage(pid) {
 		"akichi",
 		"alter",
 		"angleloop",
-		"archipelago",
 		"aquapelago",
 		"aquarium",
 		"araf",
-		"skyscrapers",
+		"archipelago",
 		"balance",
 		"balloon",
 		"batten",
@@ -146,14 +145,15 @@ function toBGimage(pid) {
 		"heyapin",
 		"icewalk",
 		"invlitso",
-		"ladders",
-		"lixloop",
+		"island",
 		"kaidan",
 		"kaisu",
 		"kissing",
 		"kropki",
 		"kuroclone",
 		"kuromenbun",
+		"ladders",
+		"lixloop",
 		"lollipops",
 		"magnets",
 		"mannequin",
@@ -170,9 +170,9 @@ function toBGimage(pid) {
 		"nondango",
 		"nonogram",
 		"norinuri",
+		"nothing",
 		"nurimisaki",
 		"nuriuzu",
-		"nothing",
 		"oneroom",
 		"ovotovata",
 		"oyakodori",
@@ -184,8 +184,8 @@ function toBGimage(pid) {
 		"portal",
 		"ququ",
 		"rassi",
-		"remlen",
 		"regional-poly",
+		"remlen",
 		"retroships",
 		"roundtrip",
 		"sananko",
@@ -194,6 +194,7 @@ function toBGimage(pid) {
 		"scrin",
 		"simplegako",
 		"simpleloop",
+		"skyscrapers",
 		"slashpack",
 		"smullyan",
 		"snake",
@@ -202,7 +203,6 @@ function toBGimage(pid) {
 		"starbattle",
 		"statuepark",
 		"subomino",
-		"wafusuma",
 		"swslither",
 		"symmarea",
 		"tachibk",
@@ -221,6 +221,7 @@ function toBGimage(pid) {
 		"turnaround",
 		"voxas",
 		"vslither",
+		"wafusuma",
 		"walllogic",
 		"waterwalk",
 		"wittgen",
diff --git a/src-ui/list.html b/src-ui/list.html
index acfa87b01..40d3eca81 100644
--- a/src-ui/list.html
+++ b/src-ui/list.html
@@ -65,6 +65,7 @@ <h2 id="title"><span lang="ja">パズルの種類のリスト</span><span lang="
     <li data-pid="snakeegg"></li>
     <li data-pid="archipelago"></li>
     <li data-pid="nibunnogo"></li>
+    <li data-pid="island"></li>
    </ul>
   </div>
   <div class="lists blocks">
@@ -181,6 +182,7 @@ <h2 id="title"><span lang="ja">パズルの種類のリスト</span><span lang="
     <li data-pid="crossstitch"></li>
     <li data-pid="roundtrip"></li>
     <li data-pid="trainstations"></li>
+    <li data-pid="turnrun"></li>
    </ul>
   </div>
   <div class="lists loops">
diff --git a/src-ui/p.html b/src-ui/p.html
index a63ab9eea..0d1c51c4b 100644
--- a/src-ui/p.html
+++ b/src-ui/p.html
@@ -436,6 +436,18 @@ <h2 id="title2">読み込み中です...</h2>
         <span>__heyapin_overlap__</span>
       </label>
     </div>
+    <div class="config" data-config="slither_full">
+      <label>
+        <input type="checkbox">
+        <span>__slither_full__</span>
+      </label>
+    </div>
+    <div class="config" data-config="loop_full">
+      <label>
+        <input type="checkbox">
+        <span>__loop_full__</span>
+      </label>
+    </div>
     <div class="config" data-config="variant">
       <label>
         <input type="checkbox">
diff --git a/src-ui/res/history.en.yaml b/src-ui/res/history.en.yaml
index df28b1a73..b4be745f4 100644
--- a/src-ui/res/history.en.yaml
+++ b/src-ui/res/history.en.yaml
@@ -25,16 +25,11 @@ heyablock: This genre was invented by Atsumi Hirose in 2013 for the Japan Zukei
 mirrorbk: This genre first appeared in Puzzle Communication Nikoli vol. 177.
 takoyaki: This genre was invented by Michael Vedder.
 akichi: This genre was invented by Prasanna Seshadri.
-aho: ""
 amibo: "This genre first appeared in Puzzle Communication Nikoli vol. 134."
-angleloop: ""
-anglers: ""
 aqre: "This genre was invented by Eric Fox."
 aquapelago: "This genre was invented by Walker Anderson."
 aquarium: "This genre was invented by Inaba Naoki."
-araf: ""
 armyants: "This genre first appeared in Puzzle Communication Nikoli vol. 158."
-ayeheya: ""
 balance: "This genre was invented by Prasanna Seshadri."
 cave: "This genre first appeared in Puzzle Communication Nikoli vol. 58 under the name 'Bag'."
 barns: "This genre first appeared in Puzzle Communication Nikoli vol. 114."
@@ -42,26 +37,19 @@ bdblock: "This genre first appeared in Puzzle Communication Nikoli vol. 49."
 bonsan: "This genre first appeared in Puzzle Communication Nikoli vol. 96."
 bosanowa: "This genre first appeared in Puzzle Communication Nikoli vol. 119."
 box: "This genre first appeared in Puzzle Communication Nikoli vol. 24."
-skyscrapers: ""
 castle: "This genre was invented by Palmer Mebane."
 cbblock: "This genre first appeared in Puzzle Communication Nikoli vol. 131."
 chainedb: "This genre first appeared in Puzzle Communication Nikoli vol. 173."
-chocona: ""
 coffeemilk: "This genre first appeared in Puzzle Communication Nikoli vol. 156."
 cojun: "This genre first appeared in Puzzle Communication Nikoli vol. 125."
-compass: ""
-coral: ""
 country: "This genre first appeared in Puzzle Communication Nikoli vol. 65."
 creek: "This genre first appeared in Puzzle Communication Nikoli vol. 110."
-curvedata: ""
 dbchoco: "This genre first appeared in Puzzle Communication Nikoli vol. 163."
-detour: ""
 dominion: "This genre was invented by Inaba Naoki."
 doppelblock: "This genre was invented by Inaba Naoki."
 dosufuwa: "This genre first appeared in Puzzle Communication Nikoli vol. 151."
 dotchi: "This genre first appeared in Puzzle Communication Nikoli vol. 167."
 doubleback: "This genre was invented by Palmer Mebane."
-easyasabc: ""
 evolmino: "This genre first appeared in Puzzle Communication Nikoli vol. 182."
 factors: "This genre first appeared in Puzzle Communication Nikoli vol. 92."
 fillmat: "This genre first appeared in Puzzle Communication Nikoli vol. 42."
@@ -69,15 +57,12 @@ fillomino: "This genre first appeared in Puzzle Communication Nikoli vol. 47."
 firefly: "This genre first appeared in Puzzle Communication Nikoli vol. 91."
 fivecells: "This genre first appeared in Puzzle Communication Nikoli vol. 133."
 fourcells: "This genre first appeared in Puzzle Communication Nikoli vol. 132."
-geradeweg: ""
-goishi: ""
 gokigen: "This genre first appeared in Puzzle Communication Nikoli vol. 104."
 haisu: "This genre was invented by William Hu."
 hakoiri: "This genre first appeared in Puzzle Communication Nikoli vol. 72."
 hanare: "This genre first appeared in Puzzle Communication Nikoli vol. 134."
 hashikake: "This genre first appeared in Puzzle Communication Nikoli vol. 31."
 hebi: "This genre first appeared in Puzzle Communication Nikoli vol. 126."
-herugolf: ""
 heteromino: "This genre was invented by Inaba Naoki."
 heyabon: "This genre first appeared in Puzzle Communication Nikoli vol. 107."
 heyawake: "This genre first appeared in Puzzle Communication Nikoli vol. 39."
@@ -90,8 +75,6 @@ ichimaga: "This genre first appeared in Puzzle Communication Nikoli vol. 35."
 ichimagam: "This genre first appeared in Puzzle Communication Nikoli vol. 37."
 ichimagax: "This genre first appeared in Puzzle Communication Nikoli vol. 36."
 interbd: "This genre was invented by Palmer Mebane."
-juosan: ""
-kaero: ""
 kakuru: "This genre first appeared in Puzzle Communication Nikoli vol. 32."
 kazunori: "This genre first appeared in Puzzle Communication Nikoli vol. 149."
 kinkonkan: "This genre first appeared in Puzzle Communication Nikoli vol. 89."
@@ -99,7 +82,6 @@ koburin: "This genre first appeared in Puzzle Communication Nikoli vol. 116."
 kouchoku: "This genre first appeared in Puzzle Communication Nikoli vol. 133."
 kramma: "This genre first appeared in Puzzle Communication Nikoli vol. 123."
 kramman: "This genre first appeared in Puzzle Communication Nikoli vol. 124."
-kropki: ""
 kurochute: "This genre first appeared in Puzzle Communication Nikoli vol. 120."
 kuroclone: "This genre first appeared in Puzzle Communication Nikoli vol. 153."
 kurodoko: "This genre first appeared in Puzzle Communication Nikoli vol. 34."
@@ -113,12 +95,10 @@ loute: "This genre first appeared in Puzzle Communication Nikoli vol. 133."
 makaro: "This genre first appeared in Puzzle Communication Nikoli vol. 143."
 mashu: "This genre first appeared in Puzzle Communication Nikoli vol. 90."
 maxi: "This genre was invented by Inaba Naoki."
-meander: ""
 mejilink: "This genre first appeared in Puzzle Communication Nikoli vol. 126."
 minarism: "This genre first appeared in Puzzle Communication Nikoli vol. 93."
 midloop: "This genre first appeared in Puzzle Communication Nikoli vol. 163."
 mochikoro: "This genre first appeared in Puzzle Communication Nikoli vol. 100."
-mochinyoro: ""
 moonsun: "This genre first appeared in Puzzle Communication Nikoli vol. 154."
 nagare: "This genre first appeared in Puzzle Communication Nikoli vol. 147."
 nagenawa: "This genre first appeared in Puzzle Communication Nikoli vol. 123."
@@ -131,13 +111,9 @@ nothree: "This genre first appeared in Puzzle Communication Nikoli vol. 158."
 nuribou: "This genre first appeared in Puzzle Communication Nikoli vol. 68."
 nurikabe: "This genre first appeared in Puzzle Communication Nikoli vol. 33."
 nurimaze: "This genre first appeared in Puzzle Communication Nikoli vol. 145."
-nurimisaki: ""
-nuriuzu: ""
 onsen: "This genre first appeared in Puzzle Communication Nikoli vol. 155."
 paintarea: "This genre first appeared in Puzzle Communication Nikoli vol. 69."
-parquet: ""
 pencils: "This genre first appeared in Puzzle Communication Nikoli vol. 158."
-pentominous: ""
 pentopia: "This genre was invented by Bram de Laat."
 pipelink: "This genre first appeared in Puzzle Communication Nikoli vol. 45."
 pipelinkr: "This genre first appeared in Puzzle Communication Nikoli vol. 110."
@@ -155,44 +131,30 @@ shakashaka: "This genre first appeared in Puzzle Communication Nikoli vol. 123."
 shikaku: "This genre first appeared in Puzzle Communication Nikoli vol. 27."
 shimaguni: "This genre first appeared in Puzzle Communication Nikoli vol. 117."
 shugaku: "This genre first appeared in Puzzle Communication Nikoli vol. 119."
-shwolf: ""
 slalom: "This genre first appeared in Puzzle Communication Nikoli vol. 116."
 slither: "This genre first appeared in Puzzle Communication Nikoli vol. 26."
-snake: ""
-snakepit: ""
-starbattle: ""
 statuepark: "This genre was invented by Palmer Mebane."
 stostone: "This genre first appeared in Puzzle Communication Nikoli vol. 156."
 sukoro: "This genre first appeared in Puzzle Communication Nikoli vol. 40."
 sukororoom: "This genre first appeared in Puzzle Communication Nikoli vol. 130."
-symmarea: ""
-tajmahal: ""
 tapa: "This genre was invented by Serkan Yürekli."
-tapaloop: ""
 tasquare: "This genre first appeared in Puzzle Communication Nikoli vol. 123."
 tatamibari: "This genre first appeared in Puzzle Communication Nikoli vol. 107."
 tateyoko: "This genre first appeared in Puzzle Communication Nikoli vol. 103."
 tawa: "This genre first appeared in Puzzle Communication Nikoli vol. 127."
 tentaisho: "This genre first appeared in Puzzle Communication Nikoli vol. 96."
-tents: ""
 tilepaint: "This genre first appeared in Puzzle Communication Nikoli vol. 53."
 toichika: "This genre first appeared in Puzzle Communication Nikoli vol. 129."
 toichika2: "This genre first appeared in Puzzle Communication Nikoli vol. 167."
-tren: ""
 triplace: "This genre first appeared in Puzzle Communication Nikoli vol. 43."
-tslither: ""
 usotatami: "This genre first appeared in Puzzle Communication Nikoli vol. 125."
 usoone: "This genre first appeared in Puzzle Communication Nikoli vol. 151."
-view: ""
-vslither: ""
 wagiri: "This genre first appeared in Puzzle Communication Nikoli vol. 129."
-walllogic: ""
 wblink: "This genre first appeared in Puzzle Communication Nikoli vol. 45."
 yajikazu: "This genre first appeared in Puzzle Communication Nikoli vol. 74."
 yajilin: "This genre first appeared in Puzzle Communication Nikoli vol. 86."
 yajilin-regions: "This genre was invented by Inaba Naoki."
 yajitatami: "This genre first appeared in Puzzle Communication Nikoli vol. 135."
-yinyang: ""
 yosenabe: "This genre first appeared in Puzzle Communication Nikoli vol. 135."
 slashpack: This genre was invented by Yosuke Imai.
 remlen: This genre was invented by Palmer Mebane.
@@ -236,3 +198,5 @@ archipelago: This genre first appeared in Puzzle Communication Nikoli vol. 175.
 timebomb: This genre first appeared in Puzzle Communication Nikoli vol. 163.
 nibunnogo: This genre first appeared in Puzzle Communication Nikoli vol. 164.
 balloon: This genre first appeared in Puzzle Communication Nikoli vol. 189.
+tilecity: This genre was invented by _AtomicNeoN_.
+turnrun: This genre was invented as "Totsugeki Loop" by Subaru Saito in 2018. A similar ruleset named "Turn and Run" appeared in a Logic Masters Deutschland competition in 2021.
diff --git a/src-ui/res/history.ja.yaml b/src-ui/res/history.ja.yaml
index f414e5038..13b864a48 100644
--- a/src-ui/res/history.ja.yaml
+++ b/src-ui/res/history.ja.yaml
@@ -195,3 +195,4 @@ archipelago: パズル通信ニコリ vol.175より
 timebomb: パズル通信ニコリ vol.163より
 nibunnogo: パズル通信ニコリ vol.164より
 balloon: パズル通信ニコリ vol.189より
+tilecity: _AtomicNeoN_氏発案
diff --git a/src-ui/res/p.en.json b/src-ui/res/p.en.json
index 5f3dd4c2f..2be307eaa 100644
--- a/src-ui/res/p.en.json
+++ b/src-ui/res/p.en.json
@@ -202,6 +202,8 @@
     "akichi_maximum": "Maximum numbers may be reduced",
     "magnets_anti": "Anti-Magnets (adjacent poles of different magnets must be equal)",
     "heyapin_overlap": "Pins must overlap 2 or more regions",
+    "slither_full": "All points must be visited",
+    "loop_full": "All cells must be visited",
     "variant": "This puzzle uses variant rules",
     "time": "Time:",
     "timer.menu": "Show timer",
diff --git a/src-ui/res/rules.en.yaml b/src-ui/res/rules.en.yaml
index 3820e1a5b..afb779f3b 100644
--- a/src-ui/res/rules.en.yaml
+++ b/src-ui/res/rules.en.yaml
@@ -122,7 +122,7 @@ cbblock: "Draw lines over the dotted lines to divide the board into blocks.\n1.
 chocona: "Shade some cells on the board.\n1. A group of orthogonally connected shaded cells is called a block. Each block must be a filled rectangle or square.\n2. Numbered regions must contain the indicated amount of shaded cells."
 cojun: "Place a number in each cell. Some numbers are given.\n1. Numbers must be between 1 and N, where N is the size of the region.\n2. Each region contains exactly one of each number.\n3. Two equal numbers cannot be orthogonally adjacent.\n4. Where two numbers within a region are stacked vertically, the number on top must always be larger."
 compass: "Draw lines over the dotted lines to divide the board into several blocks.\n 1. Each block contains exactly one cell with a compass.\n2. A number in a compass indicates how many cells belong to its region that are further in the indicated direction than the compass itself."
-country: "Draw lines through orthogonally adjacent cells to form a loop.\n1. The loop cannot branch off or cross itself.\n2. Every country must be visited exactly once.\n 3. A number indicates how many cells inside the country are visited by the loop.\n 4. Two adjacent cells in different countries cannot both be unused by the loop."
+country: "Draw lines through orthogonally adjacent cells to form a loop.\n1. The loop cannot branch off or cross itself.\n2. Every country must be visited exactly once.\n3. A number indicates how many cells inside the country are visited by the loop.\n4. Two adjacent cells separated by a border cannot both be unused by the loop."
 creek: "Shade some cells on the board.\n1. Numbers indicate the amount of shaded cells which overlap the clue.\n2. All unshaded cells on the board form an orthogonally connected area."
 curvedata: "Draw orthogonal lines between cells to form figures.\n1. Every unshaded cell must have a line. Shaded cells cannot contain lines.\n2. Lines cannot go through bold borders.\n3. Every figure must overlap exactly one clue.\n4. Clues indicate the shape of the figure that overlaps it, without rotation or reflection. The length of each line segment can be expanded or reduced, as long as it is at least 1."
 dbchoco: "Divide the grid into regions of any size.\n1. Each region contains one white and one grey contiguous area. Both areas must be the same size and shape. They can be rotated or mirrored.\n2. A number indicates the size of the area the number is placed in. A region can contain one or more identical numbers."
@@ -175,7 +175,7 @@ kurotto: "Shade some cells on the board.\n1. Cells with circles cannot be shaded
 kusabi: "Draw lines between the circles to form pairs.\n1. Lines must turn exactly twice, and each turn must be in the same direction.\n2. Lines cannot cross or overlap each other.\n3. A circle labeled '短' indicates that the line segment connecting to it is shorter than the line segment connecting to the other circle on its path.\n 4. A circle labeled '長' indicates that the line segment connecting to it is longer than the line segment connecting to the other circle on its path.\n5. A circle labeled '同' indicates that these two line segments are the same length."
 lightup: "Place lights in some empty cells so that every non-black cell is illuminated.\n 1. Lights illuminate the cell they’re in as well as all cells seen in a straight line horizontally or vertically, until obstructed by a black cell.\n2. Lights may not illuminate each other.\n3. Clues represent the number of lights in the (up to) four cells surrounding the clue."
 lits: "Place a tetromino (a block of 4 cells) in every outlined region.\n1. There can not be a 2x2 square of cells occupied by tetrominoes.\n2. Two identical tetrominoes cannot share an edge, counting rotations and reflections as the same.\n3. All tetrominoes form an orthogonally contiguous area."
-lookair: "Shade some cells on the board.\n1. Every group of shaded cells must form a filled square.\n2. Clues represent how many of the five cells forming a cross around the clue (including itself) are shaded.\n3. Two squares of the same size may not have a vertical or horizontal line of unshaded cells between them, unless obstructed by another square."
+lookair: "Shade some cells on the board.\n1. Every group of shaded cells must form a filled square.\n2. Clues represent how many of the five cells forming a cross around the clue (including itself) are shaded.\n3. Two squares of the same size may not have a vertical or horizontal line of unshaded cells between them."
 loopsp: "Draw multiple loops so that every cell is used by at least one loop.\n1. Two perpendicular line segments may intersect each other, but they may not turn at their intersection or otherwise overlap.\n2. Some cells have given loop segments. These cells cannot have other lines added to them.\n3. Every loop goes through at least one circle.\n4. All circles with identical numbers must be part of the same loop, and different numbers must be in different loops.\n5. Lines cannot intersect on a circle."
 loute: "Divide the grid into regions of orthogonally connected cells.\n1. Each region must be an L shape with a width of one cell.\n2. A circle must be located in the corner of an L shape.\n3. Arrows must be located on the ends of an L shape, and point towards the corner."
 makaro: "Place a number in each empty cell. Some numbers are given.\n1. Numbers must be between 1 and N, where N is the size of the region.\n2. Each region contains exactly one of each number.\n3. Two equal numbers cannot be orthogonally adjacent.\n 4. Arrows point to the largest number of the (up to 4) orthogonally adjacent cells."
@@ -325,3 +325,5 @@ timebomb: "Draw lines to move every bomb, indicated by a white circle.\n1. Movem
 nibunnogo: "Shade some cells on the board to form shaded and unshaded areas.\n1. Numbers indicate the amount of shaded cells which overlap the clue.\n2. A shaded or unshaded area cannot be larger than 5 cells in size."
 mintonette: "Draw lines between the circles to form pairs.\n1. Lines cannot cross or overlap each other.\n2. A number indicates the amount of turns the line must take before reaching the end. Circles without numbers can be used as any number.\n3. All cells must be used by a line."
 balloon: "Divide the shaded cells into rectangular balloons, and connect each balloon to a number with a string.\n1. Strings cannot branch, cross or overlap each other.\n2. Every balloon is connected to exactly one string.\n3. Each string stops at a number, which indicates the size of the balloon.\n4. A string cannot loop back on itself and visit a cell that's orthogonally adjacent to a cell it has visited before.\n5. All cells must be used by strings or balloons."
+tilecity: "You're given a grid divided into tiles. Shade some tiles on the board.\n1. A tile is either completely shaded or unshaded.\n2. There can not be a 2x2 square of all shaded cells.\n3. Each group of orthogonally connected unshaded tiles must contain exactly one tile of each size from 1 to N, where N is the size of the largest tile in the group.\n4. Tiles containing numbers cannot be shaded, and the number represents the size of the largest tile in its group."
+turnrun: "Draw lines through orthogonally adjacent cells to form a directional loop.\n1. The loop cannot branch off or overlap.\n2. All cells where the loop crosses itself are given. The loop cannot cross itself in other places.\n3. The loop must visit and make a turn in every cell with a number.\n4. When the loop exits a cell with a number, it must travel in a straight line for the indicated number of cells, and then turn."
diff --git a/src-ui/res/rules.ja.yaml b/src-ui/res/rules.ja.yaml
index 900e6d38f..ca81f946c 100644
--- a/src-ui/res/rules.ja.yaml
+++ b/src-ui/res/rules.ja.yaml
@@ -276,3 +276,4 @@ archipelago: "1. 盤面のいくつかのマスを黒く塗りましょう。\n2
 timebomb: "1. 丸つき数字(爆弾)をタテヨコに移動させて、すべての黒丸(岩)を破壊しましょう。\n2. 爆弾の移動は数字で表します。爆弾が１マス移動するたびに数字は１つ減り、０になったマスで必ず爆発して、そのタテヨコナナメに接する最大８マスにある岩が爆破されます。\n3. 岩のマスや、すでに爆弾が通ったマスに爆弾を移動させることはできません。\n4. 異なる爆弾の移動経路(数字が入るマス)が、タテヨコに隣り合ってはいけません。危険すぎますからね。"
 nibunnogo: "1. 盤面のいくつかのマスを黒くぬりましょう。\n2. 盤面の数字は、その数字に接しているマスのうち、黒くぬるマスの数を表しています。\n3. 黒くぬるマスも白く残るマスも、タテヨコにつながってできるカタマリが６マス以上になってはいけません。"
 balloon: "1. 盤面にいくつかの、風船と風船につながるヒモのセットを描きましょう。\n2. 各セットは「灰色マスの長方形(正方形も含む)のカタマリ(風船)」「風船につながる線(ヒモ)」の2つで1組になります。風船は点線をなぞってマスを囲み、ヒモはマスの中心をタテヨコに結ぶ線で表します。\n3. ヒモは数字のマスを始点とし、通ったマスどうしが直前と直後以外で辺を共有しないように風船のどこか1つのマスで終わるように引きますが、このときヒモにつながった風船のマス数はヒモの始点にある数字と同じになるようにします。\n4. セットに含まれないマスがあってはいけません。また、違うセットどうしが同じマスで重なってはいけません。"
+tilecity: "1. 盤面のいくつかのマスを黒く塗って、太線で区切られたそれぞれの領域を、全て黒マスか全て白マスかにしましょう。\n2. 白い領域を市と呼び、タテヨコに繋がった市のカタマリを県と呼びます。\n3. 県は、1マスの市からその県に含まれる最大のマス数の市が1つずつ含まれるようにします。2つの県がタテヨコに隣り合ってはいけません。\n4. 黒マスが2×2のカタマリになってはいけません。\n5. 数字を含む領域は必ず白マスになります。数字はそのマスを含む県のうち、一番大きい市が何マスかを表しています。数字がない場合は分かりません。"
diff --git a/src/puzzle/Config.js b/src/puzzle/Config.js
index b536667c6..2f6e15260 100644
--- a/src/puzzle/Config.js
+++ b/src/puzzle/Config.js
@@ -137,6 +137,14 @@
 				variant: true,
 				volatile: true
 			}); /* heyapin: Pins must overlap at least 2 regions */
+			this.add("slither_full", false, {
+				variant: true,
+				volatile: true
+			}); /* All vertices must be visited */
+			this.add("loop_full", false, {
+				variant: true,
+				volatile: true
+			}); /* All cells must be visited */
 			/* generic variant */
 			this.add("variant", false, { variant: true, volatile: true });
 			this.add("variantid", "", { volatile: true });
@@ -467,6 +475,29 @@
 				case "heyapin_overlap":
 					exec = pid === "heyapin";
 					break;
+				case "slither_full":
+					exec =
+						[
+							"slither",
+							"tslither",
+							"swslither",
+							"myopia",
+							"lineofsight"
+						].indexOf(pid) >= 0;
+					break;
+				case "loop_full":
+					exec =
+						[
+							"mashu",
+							"geradeweg",
+							"disloop",
+							"midloop",
+							"ovotovata",
+							"balance",
+							"turnaround",
+							"turnrun"
+						].indexOf(pid) >= 0;
+					break;
 				default:
 					exec = !!this.list[name];
 			}
diff --git a/src/pzpr/variety.js b/src/pzpr/variety.js
index 5dc0eb7e7..26cc8ad50 100755
--- a/src/pzpr/variety.js
+++ b/src/pzpr/variety.js
@@ -212,6 +212,7 @@
 			],
 			interbd: [0, 0, "International Borders", "International Borders"],
 			invlitso: [0, 0, "Inverse LITSO", "Inverse LITSO", "lits"],
+			island: [0, 0, "アイランド", "Inaba's Island", "kurotto"],
 			juosan: [0, 0, "縦横さん", "Juosan"],
 			kaero: [1, 0, "お家に帰ろう", "Return Home"],
 			kaidan: [0, 0, "かいだんしばり", "Stairwell"],
@@ -374,7 +375,7 @@
 			scrin: [0, 0, "スクリン", "Scrin"],
 			shakashaka: [0, 1, "シャカシャカ", "Shakashaka"],
 			shikaku: [0, 1, "四角に切れ", "Shikaku", "shikaku"],
-			shimaguni: [1, 0, "島国", "Islands", "shimaguni"],
+			shimaguni: [1, 0, "島国", "Shimaguni", "shimaguni"],
 			shugaku: [1, 0, "修学旅行の夜", "School Trip"],
 			shwolf: [0, 0, "ヤギとオオカミ", "Goats and Wolves", "kramma"],
 			simplegako: [0, 0, "シンプルガコ", "Simple Gako"],
@@ -436,6 +437,7 @@
 			triplace: [0, 0, "トリプレイス", "Tri-place"],
 			tslither: [0, 0, "Touch Slitherlink", "Touch Slitherlink", "vslither"],
 			turnaround: [0, 0, "ターンアラウンド", "Turnaround"],
+			turnrun: [0, 0, "トツゲキループ", "Turn and Run", "trainstations"],
 			twinarea: [0, 0, "ツインエリア", "Twin Area", "hanare"],
 			usotatami: [0, 0, "ウソタタミ", "Uso-tatami", "fillmat"],
 			usoone: [0, 0, "ウソワン", "Uso-one"],
diff --git a/src/res/failcode.en.json b/src/res/failcode.en.json
index e08c9befc..f99ff4796 100644
--- a/src/res/failcode.en.json
+++ b/src/res/failcode.en.json
@@ -358,6 +358,7 @@
     "ceDirection.compass": "The number of cells in the direction is wrong.",
     "ceDirection.mukkonn": "A line that exits a cell turns at the wrong position.",
     "ceDirection.guidearrow": "A cell does not follow the indicated direction towards the goal.",
+    "ceDirection.turnrun": "A line that exits a cell turns at the wrong position.",
     "ceEmpty.kaidan": "There is an empty cell.",
     "ceEmpty.lightshadow": "There is an undetermined cell.",
     "ceEmpty.shugaku": "There is an empty cell.",
@@ -460,6 +461,7 @@
     "cuRoomGt.akichi": "A cluster of unshaded cells is larger than the number.",
     "cuRoomLt.akichi": "All clusters of unshaded cells are smaller than the number.",
     "cxAdjacent.crossstitch": "Crossings are adjacent.",
+    "cxNoLine": "A point is not visited.",
     "cxOverlap.heyapin": "A pin overlaps a single region.",
     "exMinusNe.magnets": "The number of Minus signs in the row or column is not correct.",
     "exNoMatch.nonogram": "The shaded cells don't match the clues in the row or column.",
@@ -617,6 +619,7 @@
     "lnSnLine.lither": "There is only one tree.",
     "lnStarNe.starbattle": "The number of stars in a line is wrong.",
     "lnStraightOnIce.firewalk": "A line goes straight through fire.",
+    "lnStraightOnNum": "A line goes straight through a number.",
     "lnWrongAngle.kouchoku": "Some segments meet at the wrong angle.",
     "lookairBC.lookair": "Two squares of the same size can see each other.",
     "lpNoNum.onsen": "A loop has no numbers.",
@@ -789,7 +792,7 @@
     "nmSumOfDiff.bosanowa": "Sum of the differences between the number and adjacent numbers is not equal to the number.",
     "nmSumRowNe.kakuro": "The sum of the cells is not correct.",
     "nmSumRowShadeNe.box": "A number is not equal to the sum of the number of shaded cells.",
-    "nmSumSizeNe.kurotto": "The number is not equal to sum of adjacent masses of shaded cells.",
+    "nmSumSizeNe.kurotto": "A number doesn't indicate the sum of the size of the adjacent blocks.",
     "nmSumSizeNe.tasquare": "Sum of the adjacent masses of shaded cells is not equal to the number.",
     "nmSumViewNe.teri": "The size of the largest possible rectangle is not equal to the number.",
     "nmSumViewNe.view": "Sum of four-way gaps to another number is not equal to the number.",
@@ -809,8 +812,7 @@
     "nonCirclePromontory.kurodoko": "A dead end has no circle.",
     "nqAroundDup.kakuru": "There are same numbers around the pre-numbered cell.",
     "nqAroundSumNe.kakuru": "A sum of numbers around the pre-numbered cell is incorrect.",
-    "numNoLine.geradeweg": "A number has no line.",
-    "numNoLine.turnaround": "A number has no line.",
+    "numNoLine": "A number has no line.",
     "objShaded.nurimaze": "An object is shaded.",
     "objShaded.tilecity": "A number is shaded.",
     "pairedLetterNe.kinkonkan": "Beam from a light doesn't reach its pair.",
diff --git a/src/res/failcode.ja.json b/src/res/failcode.ja.json
index 24af16444..153114936 100644
--- a/src/res/failcode.ja.json
+++ b/src/res/failcode.ja.json
@@ -588,7 +588,7 @@
     "nonCirclePromontory.kurodoko": "丸のないマスが岬になっています。",
     "nqAroundDup.kakuru": "初めから出ている数字の周りに同じ数字が入っています。",
     "nqAroundSumNe.kakuru": "初めから出ている数字の周りに入る数の合計が正しくありません。",
-    "numNoLine.geradeweg": "線の通っていない数字があります。",
+    "numNoLine": "線の通っていない数字があります。",
     "objShaded.nurimaze": "オブジェクトが黒マスになっています。",
     "pairedLetterNe.kinkonkan": "光が同じ文字の場所へ到達しません。",
     "pairedNumberNe.kinkonkan": "光の反射回数が正しくありません。",
diff --git a/src/variety-common/Answer.js b/src/variety-common/Answer.js
index a11f39654..d12d4e1fd 100644
--- a/src/variety-common/Answer.js
+++ b/src/variety-common/Answer.js
@@ -397,7 +397,15 @@ pzpr.classmgr.makeCommon({
 			this.checkLineCount(1, "lnDeadEnd");
 		},
 		checkNoLine: function() {
-			this.checkLineCount(0, "ceNoLine");
+			this.checkLineCount(0, this.board.borderAsLine ? "cxNoLine" : "ceNoLine");
+		},
+		checkNoLineIfVariant: function() {
+			if (
+				this.puzzle.getConfig("slither_full") ||
+				this.puzzle.getConfig("loop_full")
+			) {
+				this.checkNoLine();
+			}
 		},
 		checkLineCount: function(val, code) {
 			var result = true,
@@ -422,7 +430,10 @@ pzpr.classmgr.makeCommon({
 					if (this.checkOnly) {
 						break;
 					}
-					cross.seterr(1);
+
+					if (val === 0) {
+						cross.seterr(1);
+					}
 					bd.borderinside(
 						cross.bx - 1,
 						cross.by - 1,
diff --git a/src/variety-common/Graphic.js b/src/variety-common/Graphic.js
index 554bc100f..60f1ebd17 100644
--- a/src/variety-common/Graphic.js
+++ b/src/variety-common/Graphic.js
@@ -914,6 +914,7 @@ pzpr.classmgr.makeCommon({
 		//---------------------------------------------------------------------------
 		// pc.drawCrosses()    Crossの丸数字をCanvasに書き込む
 		// pc.drawCrossMarks() Cross上の黒点をCanvasに書き込む
+		// pc.drawCrossErrors() Cross error dots
 		//---------------------------------------------------------------------------
 		drawCrosses: function() {
 			var g = this.vinc("cross_base", "auto", true);
@@ -969,6 +970,24 @@ pzpr.classmgr.makeCommon({
 				}
 			}
 		},
+		drawCrossErrors: function(isdraw) {
+			var g = this.vinc("cross_error", "auto");
+			g.strokeStyle = this.errcolor1;
+			g.lineWidth = Math.max(this.cw * 0.04, 1);
+
+			var size = this.cw / 4;
+			var clist = this.range.crosses;
+			for (var i = 0; i < clist.length; i++) {
+				var cross = clist[i];
+				g.vid = "x_ce_" + cross.id;
+				if (cross.error) {
+					g.fillStyle = cross.lcnt === 2 ? this.errbcolor1 : "white";
+					g.shapeCircle(cross.bx * this.bw, cross.by * this.bh, size / 2);
+				} else {
+					g.vhide();
+				}
+			}
+		},
 
 		//---------------------------------------------------------------------------
 		// pc.drawBorders()        境界線をCanvasに書き込む
diff --git a/src/variety/balance.js b/src/variety/balance.js
index 404680ef1..f754fafd6 100644
--- a/src/variety/balance.js
+++ b/src/variety/balance.js
@@ -277,8 +277,10 @@
 				}
 			}
 			this.outbstr = bstr.substr(i);
+			this.puzzle.setConfig("loop_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("loop_full") ? "f" : null;
 			var count = 0,
 				cm = "",
 				bd = this.board;
@@ -312,6 +314,7 @@
 	},
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "loop_full");
 			this.decodeCell(function(cell, ca) {
 				if (ca === ".") {
 					return;
@@ -323,6 +326,7 @@
 			this.decodeBorderLine();
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "loop_full");
 			this.encodeCell(function(cell) {
 				if (cell.qnum !== -1) {
 					return cell.ques + "," + cell.qnum + " ";
@@ -344,6 +348,7 @@
 			"checkBlackEqual",
 			"checkDeadendLine+",
 			"checkNoLineCircle",
+			"checkNoLineIfVariant",
 			"checkOneLoop"
 		],
 
diff --git a/src/variety/bosanowa.js b/src/variety/bosanowa.js
index ff57f9fd9..56394abfc 100644
--- a/src/variety/bosanowa.js
+++ b/src/variety/bosanowa.js
@@ -309,27 +309,6 @@
 			return this.getBoardRows() + 2 * this.margin + (disptype === 2 ? 2 : 0);
 		},
 
-		drawErrorCells_bosanowa: function() {
-			var g = this.vinc("cell_back", "crispEdges", true);
-
-			g.fillStyle = this.errbcolor1;
-			var clist = this.range.cells;
-			for (var i = 0; i < clist.length; i++) {
-				var cell = clist[i];
-				g.vid = "c_fullerr_" + cell.id;
-				if (cell.error === 1) {
-					g.fillRectCenter(
-						cell.bx * this.bw,
-						cell.by * this.bh,
-						this.bw,
-						this.bh
-					);
-				} else {
-					g.vhide();
-				}
-			}
-		},
-
 		getCircleStrokeColor: function(cell) {
 			if (cell.isValid() && !cell.isNum()) {
 				return cell.error === 1 ? this.errcolor1 : this.quescolor;
diff --git a/src/variety/country.js b/src/variety/country.js
index 0a1a1e138..b6a9de032 100644
--- a/src/variety/country.js
+++ b/src/variety/country.js
@@ -757,6 +757,9 @@
 			if (this.pid === "country") {
 				this.puzzle.setConfig("country_empty", this.checkpflag("e"));
 			}
+			if (this.pid === "ovotovata") {
+				this.puzzle.setConfig("loop_full", this.checkpflag("f"));
+			}
 			if (this.pid !== "simpleloop") {
 				this.decodeBorder();
 			}
@@ -791,6 +794,9 @@
 			if (this.pid === "country") {
 				this.outpflag = this.puzzle.getConfig("country_empty") ? "e" : null;
 			}
+			if (this.pid === "ovotovata") {
+				this.outpflag = this.puzzle.getConfig("loop_full") ? "f" : null;
+			}
 			if (this.pid !== "simpleloop") {
 				this.encodeBorder();
 			}
@@ -858,6 +864,9 @@
 			if (this.pid === "country" && this.filever >= 1) {
 				this.decodeFlags();
 			}
+			if (this.pid === "ovotovata") {
+				this.decodeConfigFlag("f", "loop_full");
+			}
 			if (this.pid !== "simpleloop") {
 				if (this.filever >= 2) {
 					this.decodeBorderQues();
@@ -887,6 +896,9 @@
 			if (this.pid === "country") {
 				this.encodeFlags(["country_empty"]);
 			}
+			if (this.pid === "ovotovata") {
+				this.encodeConfigFlag("f", "loop_full");
+			}
 			if (this.pid !== "simpleloop") {
 				this.filever = 2;
 				this.encodeBorderQues();
@@ -1111,6 +1123,7 @@
 			"checkHatenaExit",
 
 			"checkDeadendLine+",
+			"checkNoLineIfVariant",
 			"checkOneLoop"
 		]
 	},
diff --git a/src/variety/firefly.js b/src/variety/firefly.js
index b6acfb888..beeb81301 100644
--- a/src/variety/firefly.js
+++ b/src/variety/firefly.js
@@ -78,6 +78,8 @@
 	Graphic: {
 		hideHatena: true,
 
+		irowake: true,
+
 		gridcolor_type: "LIGHT",
 
 		numbercolor_func: "fixed",
@@ -108,8 +110,6 @@
 	},
 
 	"Graphic@firefly": {
-		irowake: true,
-
 		drawFireflyDots: function() {
 			var g = this.vinc("cell_firefly", "auto");
 
diff --git a/src/variety/geradeweg.js b/src/variety/geradeweg.js
index a9069d182..a0c594b5c 100644
--- a/src/variety/geradeweg.js
+++ b/src/variety/geradeweg.js
@@ -101,17 +101,21 @@
 	Encode: {
 		decodePzpr: function(type) {
 			this.decodeNumber16();
+			this.puzzle.setConfig("loop_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("loop_full") ? "f" : null;
 			this.encodeNumber16();
 		}
 	},
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "loop_full");
 			this.decodeCellQnum();
 			this.decodeBorderLine();
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "loop_full");
 			this.encodeCellQnum();
 			this.encodeBorderLine();
 		}
@@ -128,6 +132,7 @@
 			"checkNoLineNumber",
 
 			"checkDeadendLine+",
+			"checkNoLineIfVariant",
 			"checkOneLoop"
 		],
 
diff --git a/src/variety/kurotto.js b/src/variety/kurotto.js
index 9a018a070..ada7296ac 100644
--- a/src/variety/kurotto.js
+++ b/src/variety/kurotto.js
@@ -7,7 +7,7 @@
 	} else {
 		pzpr.classmgr.makeCustom(pidlist, classbase);
 	}
-})(["kurotto", "mines"], {
+})(["kurotto", "mines", "island"], {
 	//---------------------------------------------------------
 	// マウス入力系
 	MouseEvent: {
@@ -40,6 +40,22 @@
 			this.mousereset();
 		}
 	},
+	"MouseEvent@island": {
+		inputModes: {
+			edit: ["number", "clear"],
+			play: ["shade", "unshade", "info-blk"]
+		},
+		dispInfoBlk: function() {
+			var cell = this.getcell();
+			this.mousereset();
+			if (cell.isnull || !cell.island) {
+				return;
+			}
+			cell.island.clist.setinfo(1);
+			this.board.hasinfo = true;
+			this.puzzle.redraw();
+		}
+	},
 
 	//---------------------------------------------------------
 	// キーボード入力系
@@ -67,7 +83,15 @@
 			return this.checkComplete();
 		}
 	},
-	"Cell@kurotto": {
+	"Cell@island": {
+		minnum: 1
+	},
+	"Board@island": {
+		addExtraInfo: function() {
+			this.islandgraph = this.addInfoList(this.klass.AreaIslandGraph);
+		}
+	},
+	"Cell@kurotto,island": {
 		maxnum: function() {
 			var max = this.board.cell.length - 1;
 			return max <= 999 ? max : 999;
@@ -131,9 +155,27 @@
 		}
 	},
 
-	"AreaShadeGraph@kurotto": {
+	"AreaShadeGraph@kurotto,island": {
 		enabled: true
 	},
+	"AreaIslandGraph:AreaShadeGraph@island": {
+		enabled: true,
+		coloring: true,
+		relation: { "cell.qans": "node", "cell.qnum": "node" },
+		setComponentRefs: function(obj, component) {
+			obj.island = component;
+		},
+		getObjNodeList: function(nodeobj) {
+			return nodeobj.islandnodes;
+		},
+		resetObjNodeList: function(nodeobj) {
+			nodeobj.islandnodes = [];
+		},
+
+		isnodevalid: function(cell) {
+			return cell.isShade() || cell.isNum();
+		}
+	},
 
 	//---------------------------------------------------------
 	// 画像表示系
@@ -156,7 +198,7 @@
 			this.common.setRange.call(this, x1, y1, x2, y2);
 		}
 	},
-	"Graphic@kurotto": {
+	"Graphic@kurotto,island": {
 		hideHatena: true,
 
 		numbercolor_func: "qnum",
@@ -183,6 +225,43 @@
 			return null;
 		}
 	},
+	"Graphic@island#1": {
+		irowakeblk: true,
+
+		getCircleFillColor: function(cell) {
+			if (!cell.isCmp()) {
+				return null;
+			}
+			var hasinfo = this.board.haserror || this.board.hasinfo;
+			if (this.puzzle.execConfig("irowakeblk") && !hasinfo) {
+				var color = cell.island.color;
+				if (typeof color !== "string") {
+					return color;
+				}
+
+				return color.replace("rgb", "rgba").replace(")", ",0.25)");
+			}
+			return this.qcmpcolor;
+		},
+
+		getShadedCellColor: function(cell) {
+			if (cell.qans !== 1) {
+				return null;
+			}
+			var hasinfo = this.board.haserror || this.board.hasinfo;
+			var info = cell.error || cell.qinfo;
+			if (info === 1) {
+				return this.errcolor1;
+			} else if (info === 2) {
+				return this.errcolor2;
+			} else if (cell.trial) {
+				return this.trialcolor;
+			} else if (this.puzzle.execConfig("irowakeblk") && !hasinfo) {
+				return cell.island.color;
+			}
+			return this.shadecolor;
+		}
+	},
 	"Graphic@mines": {
 		qcmpcolor: "rgb(127,127,127)",
 
@@ -260,11 +339,18 @@
 			}
 		}
 	},
-	"AnsCheck@kurotto": {
-		checklist: ["checkShadeCellExist", "checkCellNumber_kurotto"],
+	"AnsCheck@kurotto,island": {
+		checklist: [
+			"checkShadeCellExist",
+			"checkCellNumber_kurotto",
+			"checkConnectShaded_island@island"
+		],
 
 		checkCellNumber_kurotto: function() {
 			this.checkCellNumber("nmSumSizeNe");
+		},
+		checkConnectShaded_island: function() {
+			this.checkOneArea(this.board.islandgraph, "csDivide");
 		}
 	},
 	"AnsCheck@mines": {
diff --git a/src/variety/kusabi.js b/src/variety/kusabi.js
index 422f2255e..8dd3c3328 100644
--- a/src/variety/kusabi.js
+++ b/src/variety/kusabi.js
@@ -41,6 +41,7 @@
 	//---------------------------------------------------------
 	// 画像表示系
 	Graphic: {
+		irowake: true,
 		hideHatena: true,
 
 		gridcolor_type: "LIGHT",
diff --git a/src/variety/lineofsight.js b/src/variety/lineofsight.js
index efe3daf47..e594491d5 100644
--- a/src/variety/lineofsight.js
+++ b/src/variety/lineofsight.js
@@ -79,6 +79,7 @@
 			this.drawBGCells();
 			this.drawLines();
 			this.drawBaseMarks();
+			this.drawCrossErrors();
 			this.drawArrowNumbers();
 			this.drawPekes();
 			this.drawTarget();
@@ -95,18 +96,22 @@
 	Encode: {
 		decodePzpr: function(type) {
 			this.decodeArrowNumber16();
+			this.puzzle.setConfig("slither_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("slither_full") ? "f" : null;
 			this.encodeArrowNumber16();
 		}
 	},
 	//---------------------------------------------------------
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "slither_full");
 			this.decodeCellDirecQnum();
 			this.decodeBorderLine();
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "slither_full");
 			this.encodeCellDirecQnum();
 			this.encodeBorderLine();
 		}
@@ -125,6 +130,7 @@
 
 			"checkOneLoop",
 			"checkDeadendLine+",
+			"checkNoLineIfVariant",
 			"checkNumberHasArrow"
 		],
 
diff --git a/src/variety/lither.js b/src/variety/lither.js
index 513790bdb..fb12a7851 100644
--- a/src/variety/lither.js
+++ b/src/variety/lither.js
@@ -128,25 +128,6 @@
 			this.range.crosses = blist.crossinside();
 			this.drawBaseMarks();
 			this.drawCrossErrors();
-		},
-
-		drawCrossErrors: function(isdraw) {
-			var g = this.vinc("cross_error", "auto");
-			g.strokeStyle = this.errcolor1;
-			g.lineWidth = Math.max(this.cw * 0.04, 1);
-
-			var size = this.cw / 4;
-			var clist = this.range.crosses;
-			for (var i = 0; i < clist.length; i++) {
-				var cross = clist[i];
-				g.vid = "x_ce_" + cross.id;
-				if (cross.error) {
-					g.fillStyle = cross.lcnt === 2 ? this.errbcolor1 : "white";
-					g.shapeCircle(cross.bx * this.bw, cross.by * this.bh, size / 2);
-				} else {
-					g.vhide();
-				}
-			}
 		}
 	},
 
diff --git a/src/variety/mashu.js b/src/variety/mashu.js
index a6ce8a5dd..7630817ab 100644
--- a/src/variety/mashu.js
+++ b/src/variety/mashu.js
@@ -130,8 +130,10 @@
 		decodePzpr: function(type) {
 			this.decodeCircle();
 			this.board.revCircle();
+			this.puzzle.setConfig("loop_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("loop_full") ? "f" : null;
 			this.board.revCircle();
 			this.encodeCircle();
 			this.board.revCircle();
@@ -150,11 +152,13 @@
 	//---------------------------------------------------------
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "loop_full");
 			this.decodeCellQnum();
 			this.decodeBorderLine();
 			this.board.revCircle();
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "loop_full");
 			this.board.revCircle();
 			this.encodeCellQnum();
 			this.encodeBorderLine();
@@ -201,6 +205,7 @@
 			"checkWhitePearl2",
 			"checkNoLinePearl",
 			"checkDeadendLine+",
+			"checkNoLineIfVariant",
 			"checkOneLoop"
 		],
 
diff --git a/src/variety/midloop.js b/src/variety/midloop.js
index a1ccdc790..87d3b750b 100644
--- a/src/variety/midloop.js
+++ b/src/variety/midloop.js
@@ -152,18 +152,22 @@
 	Encode: {
 		decodePzpr: function(type) {
 			this.decodeDot();
+			this.puzzle.setConfig("loop_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("loop_full") ? "f" : null;
 			this.encodeDot();
 		}
 	},
 	//---------------------------------------------------------
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "loop_full");
 			this.decodeDotFile();
 			this.decodeBorderLine();
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "loop_full");
 			this.encodeDotFile();
 			this.encodeBorderLine();
 		}
@@ -181,6 +185,7 @@
 			"checkDotOnLine",
 
 			"checkDeadendLine+",
+			"checkNoLineIfVariant",
 			"checkOneLoop"
 		],
 
diff --git a/src/variety/myopia.js b/src/variety/myopia.js
index 1215c08bc..0df9fa63a 100644
--- a/src/variety/myopia.js
+++ b/src/variety/myopia.js
@@ -221,6 +221,7 @@
 			this.drawBGCells();
 			this.drawLines();
 			this.drawBaseMarks();
+			this.drawCrossErrors();
 			this.drawArrowCombinations();
 			this.drawHatenas();
 			this.drawPekes();
@@ -313,19 +314,23 @@
 	Encode: {
 		decodePzpr: function(type) {
 			this.decodeNumber16();
+			this.puzzle.setConfig("slither_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("slither_full") ? "f" : null;
 			this.encodeNumber16();
 		}
 	},
 
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "slither_full");
 			this.decodeCellQnum();
 			this.decodeCellQsub();
 			this.decodeBorderLine();
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "slither_full");
 			this.encodeCellQnum();
 			this.encodeCellQsub();
 			this.encodeBorderLine();
@@ -340,7 +345,8 @@
 			"checkLineDirCloser",
 			"checkLineDirUnequal",
 			"checkDeadendLine+",
-			"checkOneLoop"
+			"checkOneLoop",
+			"checkNoLineIfVariant"
 		],
 
 		getLineDirs: function() {
diff --git a/src/variety/shugaku.js b/src/variety/shugaku.js
index 512a053a1..4ee3e5ce1 100644
--- a/src/variety/shugaku.js
+++ b/src/variety/shugaku.js
@@ -349,6 +349,7 @@
 		bcolor: "rgb(208, 208, 208)",
 		targetbgcolor: "rgb(255, 192, 192)" /* 入力中の布団の色 */,
 		undefcolor: "silver" /* 未確定マスの色 */,
+		trialcolor: "rgb(80, 0, 80)",
 
 		circleratio: [0.47, 0.42],
 
diff --git a/src/variety/slither.js b/src/variety/slither.js
index 1d13f004b..626ea45e6 100644
--- a/src/variety/slither.js
+++ b/src/variety/slither.js
@@ -220,6 +220,7 @@
 			if (this.pid === "swslither") {
 				this.drawSheepWolf();
 			}
+			this.drawCrossErrors();
 			this.drawQuesNumbers();
 			this.drawPekes();
 			this.drawTarget();
@@ -261,8 +262,10 @@
 	Encode: {
 		decodePzpr: function(type) {
 			this.decode4Cell();
+			this.puzzle.setConfig("slither_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("slither_full") ? "f" : null;
 			this.encode4Cell();
 		},
 
@@ -276,14 +279,17 @@
 	"Encode@swslither": {
 		decodePzpr: function(type) {
 			this.decodeNumber10();
+			this.puzzle.setConfig("slither_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("slither_full") ? "f" : null;
 			this.encodeNumber10();
 		}
 	},
 	//---------------------------------------------------------
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "slither_full");
 			if (this.filever === 1) {
 				this.decodeCellQnum();
 				this.decodeCellQsub();
@@ -295,6 +301,7 @@
 		},
 		encodeData: function() {
 			this.filever = 1;
+			this.encodeConfigFlag("f", "slither_full");
 			this.encodeCellQnum();
 			this.encodeCellQsub();
 			this.encodeBorderLine();
@@ -399,6 +406,7 @@
 
 			"checkOneLoop",
 			"checkDeadendLine+",
+			"checkNoLineIfVariant",
 
 			"checkSheepIn@swslither",
 			"checkWolvesOut@swslither"
diff --git a/src/variety/tapaloop.js b/src/variety/tapaloop.js
index ad49932d9..22339dc3f 100644
--- a/src/variety/tapaloop.js
+++ b/src/variety/tapaloop.js
@@ -529,8 +529,10 @@
 	"Encode@disloop": {
 		decodePzpr: function(type) {
 			this.decodeArrowNumber_disloop();
+			this.puzzle.setConfig("loop_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("loop_full") ? "f" : null;
 			this.encodeArrowNumber_disloop();
 		},
 		decodeArrowNumber_disloop: function() {
@@ -588,11 +590,13 @@
 	},
 	"FileIO@disloop": {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "loop_full");
 			this.decodeQnums();
 			this.decodeDirs();
 			this.decodeBorderLine();
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "loop_full");
 			this.encodeQnums();
 			this.encodeDirs();
 			this.encodeBorderLine();
@@ -620,6 +624,7 @@
 			"checkArrowLineExist@disloop",
 			"checkNumberHasArrow@disloop",
 			"checkDeadendLine+",
+			"checkNoLineIfVariant@disloop",
 			"checkOneLoop"
 		],
 
diff --git a/src/variety/trainstations.js b/src/variety/trainstations.js
index 9fc8b7883..3662cd68b 100644
--- a/src/variety/trainstations.js
+++ b/src/variety/trainstations.js
@@ -4,7 +4,7 @@
 	} else {
 		pzpr.classmgr.makeCustom(pidlist, classbase);
 	}
-})(["trainstations"], {
+})(["trainstations", "turnrun"], {
 	MouseEvent: {
 		inputModes: {
 			edit: ["number", "undef", "empty", "clear", "info-line"],
@@ -74,6 +74,29 @@
 			return this.isEmpty();
 		}
 	},
+	"Cell@turnrun": {
+		maxnum: function() {
+			var bd = this.board;
+			return Math.max(bd.cols, bd.rows) - 1;
+		},
+		getSegmentDir: function(dir) {
+			var llist = new this.klass.PieceList();
+			var pos = this.getaddr().movedir(dir, 1);
+			while (1) {
+				var border = pos.getb();
+				if (!border || border.isnull) {
+					break;
+				}
+				if (border.isLine()) {
+					llist.add(border);
+				} else {
+					break;
+				}
+				pos.movedir(dir, 2);
+			}
+			return llist;
+		}
+	},
 	Board: {
 		hasborder: 1,
 		maxFoundNumber: -1,
@@ -208,14 +231,17 @@
 		decodePzpr: function(type) {
 			this.decodeNumber16();
 			this.decodeEmpty();
+			this.puzzle.setConfig("loop_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("loop_full") ? "f" : null;
 			this.encodeNumber16();
 			this.encodeEmpty();
 		}
 	},
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "loop_full");
 			this.decodeCell(function(cell, ca) {
 				if (ca === "#") {
 					cell.ques = 7;
@@ -228,6 +254,7 @@
 			this.decodeBorderArrowAns();
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "loop_full");
 			this.encodeCell(function(cell) {
 				if (cell.ques === 7) {
 					return "# ";
@@ -245,17 +272,21 @@
 
 	AnsCheck: {
 		checklist: [
-			"checkNumberRange",
+			"checkNumberRange@trainstations",
 			"checkBranchLine",
 			"checkCrossOutOfMark",
-			"checkCurveOnNumber",
-			"checkNumberConsecutive",
+			"checkCurveOnNumber@trainstations",
+			"checkStraightOnNumber@turnrun",
+			"checkNumberConsecutive@trainstations",
 
 			"checkNotCrossOnMark",
+			"checkNoLineNumber@turnrun",
 			"checkDeadendLine+",
 			"checkOneLoop",
-			"checkNumberFullSequence",
-			"checkNoLine"
+			"checkNumberFullSequence@trainstations",
+			"checkTurnLengths@turnrun",
+			"checkNoLine@trainstations",
+			"checkNoLineIfVariant@turnrun"
 		],
 
 		checkNumberRange: function() {
@@ -280,6 +311,21 @@
 				return cell.isLineCurve() && cell.qnum !== -1 && cell.qnum !== 0;
 			}, "lnCurveOnNum");
 		},
+		checkStraightOnNumber: function() {
+			this.checkAllCell(function(cell) {
+				return cell.isLineStraight() && cell.qnum !== -1 && cell.qnum !== 0;
+			}, "lnStraightOnNum");
+		},
+
+		checkTurnLengths: function() {
+			this.checkWalkGeneric(this.turnrun_walkLine, "ceDirection");
+		},
+
+		checkNoLineNumber: function() {
+			this.checkAllCell(function(cell) {
+				return cell.isNum() && cell.lcnt === 0;
+			}, "numNoLine");
+		},
 
 		checkNumberConsecutive: function() {
 			var max = this.board.getMaxFoundNumber();
@@ -302,6 +348,10 @@
 		},
 
 		checkNumberFullSequence: function() {
+			this.checkWalkGeneric(this.trainstations_walkLine, "nmNotConseqFull");
+		},
+
+		checkWalkGeneric: function(func, code) {
 			var bd = this.board,
 				paths = bd.linegraph.components,
 				path = paths[0];
@@ -327,7 +377,7 @@
 			var walks = [];
 			for (var dir = 1; dir <= 4; dir++) {
 				if (start.reldirbd(dir, 1).isLine()) {
-					walks.push(this.walkLine(start, dir));
+					walks.push(func.call(this, start, dir));
 				}
 			}
 
@@ -339,7 +389,7 @@
 				return;
 			}
 
-			this.failcode.add("nmNotConseqFull");
+			this.failcode.add(code);
 			if (this.checkOnly) {
 				return;
 			}
@@ -353,7 +403,7 @@
 			walk.blist.seterr(1);
 		},
 
-		walkLine: function(start, dir) {
+		trainstations_walkLine: function(start, dir) {
 			var clist = new this.klass.CellList();
 			var blist = new this.klass.BorderList();
 			var current = new this.klass.BorderList();
@@ -401,6 +451,49 @@
 				!addr.getc().isEmpty()
 			);
 
+			return { clist: clist, blist: blist };
+		},
+
+		turnrun_walkLine: function(start, dir) {
+			var clist = new this.klass.CellList();
+			var blist = new this.klass.BorderList();
+			var addr = start.getaddr();
+
+			do {
+				var cell = addr.getc();
+
+				var segments =
+					cell.isLineCurve() && cell.isValidNum()
+						? cell.getSegmentDir(dir)
+						: null;
+
+				if (segments && segments.length !== cell.qnum) {
+					clist.add(cell);
+					blist.extend(segments);
+				}
+
+				addr.movedir(dir, 2);
+
+				var next = addr.getc();
+				var adb = next.adjborder;
+
+				if (next.lcnt === 4) {
+					/* Go straight at a crossing */
+				} else if (dir !== 1 && adb.bottom.isLine()) {
+					dir = 2;
+				} else if (dir !== 2 && adb.top.isLine()) {
+					dir = 1;
+				} else if (dir !== 3 && adb.right.isLine()) {
+					dir = 4;
+				} else if (dir !== 4 && adb.left.isLine()) {
+					dir = 3;
+				}
+			} while (
+				!addr.equals(start) &&
+				addr.getc().lcnt > 1 &&
+				!addr.getc().isEmpty()
+			);
+
 			return { clist: clist, blist: blist };
 		}
 	}
diff --git a/src/variety/turnaround.js b/src/variety/turnaround.js
index 014911ac7..a878bae47 100644
--- a/src/variety/turnaround.js
+++ b/src/variety/turnaround.js
@@ -111,17 +111,21 @@
 	Encode: {
 		decodePzpr: function(type) {
 			this.decodeNumber16();
+			this.puzzle.setConfig("loop_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("loop_full") ? "f" : null;
 			this.encodeNumber16();
 		}
 	},
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "loop_full");
 			this.decodeCellQnum();
 			this.decodeBorderLine();
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "loop_full");
 			this.encodeCellQnum();
 			this.encodeBorderLine();
 		}
@@ -136,6 +140,7 @@
 			"checkNoLineNumber",
 
 			"checkDeadendLine+",
+			"checkNoLineIfVariant",
 			"checkOneLoop"
 		],
 
diff --git a/src/variety/vslither.js b/src/variety/vslither.js
index 72a6732bc..87358ac6c 100644
--- a/src/variety/vslither.js
+++ b/src/variety/vslither.js
@@ -180,6 +180,7 @@
 			this.drawBGCells();
 			this.drawLines();
 			this.drawBaseMarks();
+			this.drawCrossErrors();
 			this.drawQuesNumbers();
 			this.drawPekes();
 			this.drawDots();
@@ -251,14 +252,17 @@
 	Encode: {
 		decodePzpr: function(type) {
 			this.decode4Cell();
+			this.puzzle.setConfig("slither_full", this.checkpflag("f"));
 		},
 		encodePzpr: function(type) {
+			this.outpflag = this.puzzle.getConfig("slither_full") ? "f" : null;
 			this.encode4Cell();
 		}
 	},
 	//---------------------------------------------------------
 	FileIO: {
 		decodeData: function() {
+			this.decodeConfigFlag("f", "slither_full");
 			this.decodeCellQnum();
 			this.decodeCellQsub();
 			this.decodeBorderLine();
@@ -267,6 +271,7 @@
 			});
 		},
 		encodeData: function() {
+			this.encodeConfigFlag("f", "slither_full");
 			this.encodeCellQnum();
 			this.encodeCellQsub();
 			this.encodeBorderLine();
@@ -286,7 +291,8 @@
 			"checkdir4VertexLine@vslither",
 			"checkdir4TouchLine@tslither",
 			"checkOneLoop",
-			"checkDeadendLine+"
+			"checkDeadendLine+",
+			"checkNoLineIfVariant@tslither"
 		],
 
 		checkdir4VertexLine: function() {
diff --git a/test/script/island.js b/test/script/island.js
new file mode 100644
index 000000000..1264ba224
--- /dev/null
+++ b/test/script/island.js
@@ -0,0 +1,47 @@
+/* island.js */
+
+ui.debug.addDebugData("island", {
+	url: "5/5/1g6m2i3h4m",
+	failcheck: [
+		[
+			"brNoShade",
+			"pzprv3/island/5/5/1 . 6 . . /. . . . . /2 . . . 3 /. . 4 . . /. . . . . /. . . . . /. . . . . /. . . . . /. . . . . /. . . . . /"
+		],
+		[
+			"nmSumSizeNe",
+			"pzprv3/island/5/5/1 . 6 . . /. . . . . /2 . . . 3 /. . 4 . . /. . . . . /. # . # # /+ + # . . /. + # # . /# # . + + /. . . . + /"
+		],
+		[
+			"csDivide",
+			"pzprv3/island/5/5/1 . 6 . . /. . . . . /2 . . . 3 /. . 4 . . /. . . . . /. # . # # /+ + # + # /. + # + . /# . . + + /# + # # + /"
+		],
+		[
+			null,
+			"pzprv3/island/5/5/1 . 6 . . /. . . . . /2 . . . 3 /. . 4 . . /. . . . . /. # . # # /+ + # + # /. + # + . /# # . + + /+ + + + + /"
+		]
+	],
+	inputs: [
+		{ input: ["newboard,5,1", "editmode"] },
+		{
+			input: [
+				"cursor,3,1",
+				"key,1",
+				"cursor,9,1",
+				"key,1",
+				"playmode",
+				"mouse,left,1,1,5,1"
+			],
+			result: "pzprv3/island/1/5/. 1 . . 1 /# . # . . /"
+		},
+		{
+			input: ["playmode,info-blk", "mouse,left,3,1"],
+			result: function(puzzle, assert) {
+				var bd = puzzle.board;
+				assert.equal(bd.getc(1, 1).qinfo, 1);
+				assert.equal(bd.getc(3, 1).qinfo, 1);
+				assert.equal(bd.getc(5, 1).qinfo, 1);
+				assert.equal(bd.getc(9, 1).qinfo, 0);
+			}
+		}
+	]
+});
diff --git a/test/script/slither.js b/test/script/slither.js
index 33716f75c..4e70bf6b2 100644
--- a/test/script/slither.js
+++ b/test/script/slither.js
@@ -24,6 +24,16 @@ ui.debug.addDebugData("slither", {
 			"lnDeadEnd",
 			"pzprv3/slither/5/5/2 . . 1 . /. 2 . . 1 /. . 2 . . /3 . . 3 . /. 0 . . 3 /1 0 0 0 0 0 /1 1 0 1 0 0 /1 1 1 0 0 1 /1 1 1 1 1 1 /0 0 0 0 1 1 /1 1 1 1 0 /0 1 1 0 0 /0 0 1 0 1 /0 0 0 1 0 /1 0 1 0 0 /0 0 0 0 1 /"
 		],
+		[
+			"cxNoLine",
+			"pzprv3.1/slither/2/3/f/. . . /. . . /0 0 0 /0 0 0 /1 0 0 1 /1 1 0 0 /1 1 1 /0 1 1 /1 0 0 /",
+			{ skiprules: true }
+		],
+		[
+			null,
+			"pzprv3.1/slither/2/3/f/. . . /. . . /0 0 0 /0 0 0 /1 0 0 1 /1 1 1 1 /1 1 1 /0 1 0 /1 0 1 /",
+			{ skiprules: true }
+		],
 		[
 			null,
 			"pzprv3/slither/5/5/2 . . 1 . /. 2 . . 1 /. . 2 . . /3 . . 3 . /. 0 . . 3 /1 -1 0 -1 -1 1 /1 1 -1 1 -1 1 /1 1 1 0 0 1 /1 1 1 1 1 1 /-1 -1 -1 0 1 1 /1 1 1 1 1 /-1 1 1 -1 -1 /0 -1 1 0 0 /0 0 0 1 0 /1 -1 1 -1 0 /-1 0 -1 0 1 /"
diff --git a/test/script/turnrun.js b/test/script/turnrun.js
new file mode 100644
index 000000000..d1063e852
--- /dev/null
+++ b/test/script/turnrun.js
@@ -0,0 +1,54 @@
+/* turnrun.js */
+
+ui.debug.addDebugData("turnrun", {
+	url: "5/5/g2o0h1k4j",
+	failcheck: [
+		[
+			"lnBranch",
+			"pzprv3/turnrun/5/5/. 2 . . . /. . . . . /. 0 . . 1 /. . . . . /4 . . . . /0 0 0 0 /0 0 0 0 /0 0 0 0 /1 0 0 0 /0 0 0 0 /0 0 0 0 0 /0 0 0 0 0 /1 0 0 0 0 /1 0 0 0 0 /"
+		],
+		[
+			"lnCrossExMk",
+			"pzprv3/turnrun/5/5/. 2 . . . /. . . . . /. 0 . . 1 /. . . . . /4 . . . . /0 1 1 0 /0 0 1 1 /0 0 0 0 /0 0 0 0 /0 0 0 0 /0 0 0 1 0 /0 0 0 1 0 /0 0 0 0 0 /0 0 0 0 0 /"
+		],
+		[
+			"lnStraightOnNum",
+			"pzprv3/turnrun/5/5/. 2 . . . /. . . . . /. 0 . . 1 /. . . . . /4 . . . . /1 1 0 0 /1 0 0 1 /1 1 0 0 /0 1 1 0 /1 1 1 1 /1 0 1 0 0 /0 1 1 1 1 /1 1 0 1 1 /1 0 0 0 1 /"
+		],
+		[
+			"ceDirection",
+			"pzprv3/turnrun/5/5/. 2 . . . /. . . . . /. 0 . . 1 /. . . . . /4 . . . . /0 1r 1r 1r /0 0 1 1 /1 1 0 1 /0 1 1 0 /1 1 1 1 /0 1 0 0 1 /0 1 1 0 0 /1 1 0 1 1 /1 0 0 0 1 /"
+		],
+		[
+			"lnNotCrossMk",
+			"pzprv3/turnrun/5/5/. 2 . . . /. . . . . /. 0 . . 1 /. . . . . /4 . . . . /0 1 1 0 /1 0 0 0 /0 0 0 1 /0 0 0 1 /1 1 1 0 /0 1 0 1 0 /1 0 0 1 0 /1 0 0 0 1 /1 0 0 1 0 /"
+		],
+		[
+			"lnPlLoop",
+			"pzprv3/turnrun/5/5/. 2 . . . /. . . . . /. 0 . . 1 /. . . . . /4 . . . . /0 1 1 0 /0 0 1 0 /1 1 0 1 /0 0 0 1 /1 0 0 0 /0 1 0 1 0 /0 1 1 0 0 /1 1 0 1 1 /1 1 0 0 0 /:"
+		],
+		[
+			"numNoLine",
+			"pzprv3/turnrun/5/5/. 2 . . . /. . . . . /. 0 . . 1 /. . . . . /4 . . . . /0 1 1 0 /0 0 1 0 /1 1 0 0 /0 1 1 1 /1 1 1 1 /0 1 0 1 0 /0 1 1 0 0 /1 1 0 0 0 /1 0 0 0 1 /"
+		],
+		[
+			"lnDeadEnd",
+			"pzprv3/turnrun/5/5/. 2 . . . /. . . . . /. 0 . . 1 /. . . . . /4 . . . . /0 1 1 0 /0 0 0 0 /1 1 0 1 /0 1 1 0 /1 1 1 1 /0 1 0 1 0 /0 1 0 0 0 /1 1 0 1 1 /1 0 0 0 1 /"
+		],
+		[
+			"ceNoLine",
+			"pzprv3/turnrun/3/3/f/. . 2 /. . . /. . . /1 1 /1 0 /0 1 /1 0 1 /0 1 1 /",
+			{ skiprules: true }
+		],
+		[
+			null,
+			"pzprv3/turnrun/3/3/f/. . 2 /. . . /# . . /1 1 /1 0 /0 1 /1 0 1 /0 1 1 /",
+			{ skiprules: true }
+		],
+		[
+			null,
+			"pzprv3/turnrun/5/5/. 2 . . . /. . . . . /. 0 . . 1 /. . . . . /4 . . . . /0 1r 1r 0 /0 0 1 0 /1 1 0 1l /0 1 1 0 /1r 1r 1r 1r /0 1 0 1 0 /0 1 1 0 0 /1 1 0 1 1 /1 0 0 0 1 /"
+		]
+	],
+	inputs: []
+});
diff --git a/test/variety/bosanowa_test.js b/test/variety/bosanowa_test.js
new file mode 100644
index 000000000..b442221a8
--- /dev/null
+++ b/test/variety/bosanowa_test.js
@@ -0,0 +1,19 @@
+// test/variety/bosanowa_test.js
+
+var assert = require("assert");
+
+var pzpr = require("../../");
+
+var puzzle = new pzpr.Puzzle();
+
+describe("Variety:bosanowa", function() {
+	it("loads styles", function() {
+		puzzle.open("bosanowa/h/6/5/jo9037g2n2n3g4j3i");
+		puzzle.toBuffer("svg", 0, 30);
+		assert.equal(puzzle.getConfig("disptype_bosanowa"), 2);
+
+		puzzle.open("bosanowa/t/6/5/jo9037g2n2n3g4j3i");
+		puzzle.toBuffer("svg", 0, 30);
+		assert.equal(puzzle.getConfig("disptype_bosanowa"), 3);
+	});
+});