Cannon Chess 5×4 · 炮棋 5×4
Your shot only fires when nothing else shares the line. And your last surviving piece becomes a cannon that takes two at once.
炮击要整条线上只剩这三枚才打得响。而你最后一枚子会变成能连吃两枚的独炮。
六子对垒，炮击吃子
Six pieces a side, capture by cannon-shot
玩法要点
- 棋子：双方各 6 枚
- 棋盘：4 × 5，20 个棋位
- 吃法：炮击 + 独子挑吃
Quick start
- Move one step horizontally or vertically; capture every rival piece to win, or draw when both sides have one left.
- A new own–own–rival formation captures only if those are the only three pieces on the entire line.
- Your last piece may slide farther along a clear straight line and capture two adjacent rivals by entering between them.
快速上手
- 沿横竖线走一格，吃光对方获胜；双方各剩一子算和。
- 新走出紧连的“己己敌”可吃敌子，但整条线上只能有这三枚棋。
- 只剩一子时可沿空直线远走，插进两枚敌子正中间可同时挑吃。
Rules
Board and Setup
Play on a 4 x 5 grid, 20 points in all. Each side has six pieces: a full row along its own edge, plus two more at the ends of the next row in.
This traditional Chinese game is also known regionally as Six-Piece Rush or Two-on-One Chess, widely played in Sichuan and nearby areas.
Movement
Take turns moving one piece horizontally or vertically into an adjacent empty cell. Diagonal moves and jumping are not allowed.
A move is required every turn; a turn cannot be passed.
Cannon-Shot Capture
Put two of your pieces side by side, right next to one enemy piece.
The row or column must have only those 3 pieces. Then capture the enemy piece.
Any other piece on that same line, however far away, blocks the shot.
Lone Piece
Once a side has only one piece left, that piece may slide any distance in a straight line in one move, but cannot turn and cannot jump over anything.
If it lands directly between two enemy pieces with no gap on either side, both are captured at once, no matter what sits further along the line.
Winning and Timer
Win by eliminating every one of the opponent's pieces.
If both sides are ever down to their last piece, neither can capture the other anymore, and the game is a draw.
In this version, a player with no legal move also loses. Each turn lasts 60 seconds; when time expires, the turn passes automatically.
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
棋盘为 4 × 5 网格，一共 20 个棋位。双方各有六枚棋子：一整排摆在最外侧一行，另外两枚摆在紧邻一行的两端。
炮棋也有书籍称之为六子衝棋、二打一棋，广泛流行于四川等地。
行棋规则
双方轮流移动一枚己方棋子，只能沿横线或竖线走到相邻空格，不能斜走或跳过其他棋子。
每一回合都要走棋，不能主动放弃这次行动。
炮击吃子
自己两枚棋挨在一起，旁边紧挨着一枚对方棋。
这一整条线只能有这 3 枚棋。满足时，就能炮击吃掉对方棋。
只要这条线上还有别的棋子，哪怕离得很远，也不能炮击。
独子
一方只剩最后一枚棋子时，这枚棋子可以一次沿直线走任意多格，但不能拐弯，也不能越过其他棋子。
如果这枚棋子走到两枚对方棋子正中间、两侧都紧贴没有空位，就能一次挑吃这两枚棋子，不用管更远处还有没有棋子。
胜负与计时
消灭对方所有棋子即可获胜。
双方都只剩最后一枚棋子时，谁都没法再吃掉对方，这一局就算和棋。
本版本中，对手没有任何合法走法时也判负；每步限时 60 秒，时间用尽后自动轮到对方。
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。