Double Tiger Chess · 双虎棋
Two tigers hunt together, and trapping one of them counts for nothing. The dogs win only when neither tiger can move.
两只虎一起猎食，困住一只毫无意义：两只同时动弹不得，犬方才算赢。
两虎同场，十六犬拆围
Two tigers, sixteen dogs breaking apart
玩法要点
- 棋子：虎方 2 枚，犬方 16 枚
- 棋盘：跟围虎棋同一张 25 点米字格
- 获胜：两虎合计吃满 6 犬，或犬方把两虎都困死
Quick start
- The tigers win once they've captured six dogs between them. The dogs win only once both tigers are completely stuck — trapping just one isn't enough.
- Step along a line; dogs must split all remaining groups before moving independent dogs.
- A tiger may jump an adjacent dog or group to an empty point beyond, capturing only one dog even from a group.
快速上手
- 两只虎合计吃掉六枚犬，虎方获胜。两只虎都被困到完全无法动弹，犬方获胜——只困住其中一只不算，要两只都动不了才算。
- 双方沿线走一步；犬必须先拆散所有成组犬，才可走独立犬。
- 虎可跳过紧邻的犬或犬组，落到其后空点；即使跳过一组，也只吃一犬。
Rules
Board and Setup
The board is the same 25-point mi-grid as Wei Hu Qi. The two tigers start at the midpoints of the board's left and right edges.
The sixteen dogs start bunched into four groups of four, huddled around the mi-grid's four crossing points.
Movement
One player plays the tigers, the other plays the dogs, taking turns. The tigers move first. Both sides move one step along a drawn line to an empty neighboring point, never jumping over another piece.
As long as any group is still bunched together, that turn's move must be one dog from a bunched group — a dog that has already broken away and holds its own point can't move yet. Once all four groups have broken apart, any dog can move freely.
Tiger Jumps
When a dog is right beside a tiger (or a whole still-bunched group is), and the next point in that same line is empty, the tiger can choose to jump over and capture one dog; the tiger can also choose not to capture it, and instead step to a different empty point next to it.
Jumping over a whole group still captures only one dog, no matter how many are still bunched there.
Winning
The tigers win once they've captured six dogs between them.
The dogs win only once both tigers are completely stuck — trapping just one isn't enough.
Timer
Each turn lasts 60 seconds. When time runs out, the turn passes to the other side automatically.
You can change the difficulty anytime in Game Settings.
规则详解
棋盘与开局
棋盘跟围虎棋一样，是一张 25 点米字格。开局虎方两枚棋子分别站在棋盘左右两边的边线中点。
犬方十六枚棋子紧贴着分成四组，每组四枚，堆在米字格的四个交叉点周围。
行棋规则
一名玩家扮演虎方，另一名玩家扮演犬方，轮流走子，虎方先走。双方都是沿画好的线走一步到相邻空位，不能越过别的棋子。
只要犬方还有没拆散的一组，这一步就必须挑这些组里的一枚犬走开，不能去动已经拆散、单独占了一个棋点的犬。等四组全部拆散完，犬方才能随便挑一枚犬走。
虎跳吃犬
虎紧挨一枚犬（或紧挨一整组还没拆散的犬），犬后面同一直线的点又是空的，虎这时可以选择跳过去吃掉一枚犬；也可以选择不吃，而选择走到旁边其他相邻的空位。
跳过一整组时，不管这组当时还剩几枚犬，一次也只吃掉其中一枚。
谁赢
两只虎合计吃掉六枚犬，虎方获胜。
两只虎都被困到完全无法动弹，犬方获胜——只困住其中一只不算，要两只都动不了才算。
计时
每步限时 60 秒，时间到了会自动换对方走。
可以在"对局设置"里换一个难度，随时都能换。