Daci Shuang Cheng Chess · 大慈双承棋
Two diamonds joined at the waist: everything has to pass through the middle, and the middle is the piece you both control.
两个菱形在腰上接起来，什么都得从中间过——而中间那枚子，你们俩都能动。
双菱形棋盘，四子围堵
A double-diamond board, four pieces each
玩法要点
- 棋子：双方各 4 枚，另有 1 枚公用
- 棋盘：11 点，双菱形
- 获胜：让对手无棋可走
Quick start
- A player who has no legal move at all — not even the shared piece — loses right away.
- Take turns moving one of your own pieces, or the shared piece at the center, one step along a line to an adjacent empty point. No jumping, no capturing.
- If the shared piece was just moved, the other player cannot move it on their very next turn — it becomes movable again once that player has taken one turn with a different piece.
快速上手
- 轮到某一方却无棋可走——连公用棋子也没法动——就算输了。
- 双方轮流选一枚自己的棋子，或者选正中心那枚公用棋子，沿连线走一步到相邻的空棋点。不能跳跃，也不能吃子。
- 如果刚才走的是公用棋子，下一回合对方不能马上再走它，要等对方走完一步别的棋子之后，公用棋子才能再被动。
Rules
Board and Setup
The board has 11 points: the shared piece sits dead center, with a diamond above and below it (each diamond's left and right corners are points too), one more row of three points beyond each diamond, and one more tip point beyond each of those rows.
One player's 4 pieces start on the top tip and top row. The other player's 4 pieces start on the bottom row and bottom tip. One more piece — shared by both players — starts at the exact center; the center diamond's left and right corners start empty.
Movement and the Shared Piece
Take turns moving one of your own pieces, or the shared piece at the center, one step along a line to an adjacent empty point. No jumping, no capturing.
If the shared piece was just moved, the other player cannot move it on their very next turn — it becomes movable again once that player has taken one turn with a different piece.
Winning
A player who has no legal move at all — not even the shared piece — loses right away.
The core idea is to use the shared piece together with your own pieces to trap the other side's pieces in a corner.
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
棋盘有 11 个棋点：正中心是公用棋子，上下各接一个菱形（菱形的左右两角也是棋点），菱形外侧上下各再接一排三点，再往外上下各还有一个尖角点。
一名玩家的 4 枚棋子摆在上方尖角和上面一排三点，另一名玩家的 4 枚棋子摆在下面一排三点和下方尖角。正中心放一枚谁都能用的棋子，中心菱形的左右两个角开局是空的。
行棋与公用棋子
双方轮流选一枚自己的棋子，或者选正中心那枚公用棋子，沿连线走一步到相邻的空棋点。不能跳跃，也不能吃子。
如果刚才走的是公用棋子，下一回合对方不能马上再走它，要等对方走完一步别的棋子之后，公用棋子才能再被动。
谁赢
轮到某一方却无棋可走——连公用棋子也没法动——就算输了。
围堵的思路：用公用棋子和自己的棋子一起把对方的棋子堵在角落里。
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。