🎲 双陆棋Backgammon
在线双陆棋人机对战：你执白子，按骰子点数把 15 枚棋子沿 24 个点走回自己的内盘，再全部移出棋盘；电脑执黑子反向而行。单独的一枚棋子会被对方打回中间横栏，叠两枚以上就能封锁该点。完整规则，含掷双倍走四步、必须用尽点数、移出规则和全胜判定，三档电脑难度。Backgammon online against the computer: you play white and race your 15 checkers around the 24 points into your home board and then bear them off, while the computer's black checkers travel the other way. A lone checker can be hit and sent to the bar; two or more make a point that blocks your opponent. Full rules including doubles played four times, using as much of the roll as possible, bearing off and gammons, with three computer levels.
点“掷骰子”（或按空格），再点一枚可走的棋子（绿圈），然后点绿色的目标点；能移出时点右侧的槽。Z 重走本回合。Press Roll (or Space), tap a movable checker (green ring), then tap a green target point; tap the tray on the right to bear off. Z undoes your turn.
玩法说明与常见问题How to play & FAQ
「双陆棋」怎么玩？How do I play Backgammon?
白子从右上角出发，沿着逆时针方向走到右下角的内盘（1～6 点）。两颗骰子的点数分别用来走棋，可以由同一枚棋子连走，掷出相同点数（双数）时要走四次。不能落在有两枚以上黑子的点上；落在只有一枚黑子的点上会把它打到横栏，被打的棋子必须先重新进场才能走别的棋。15 枚棋子都进了内盘后才能开始移出，先全部移出的一方获胜。White starts top right and moves anticlockwise toward the home board at the bottom right (points 1–6). Each die is a separate move — one checker may use both — and doubles are played four times. You can't land on a point held by two or more black checkers; landing on a single black checker hits it to the bar, and a checker on the bar must re-enter before anything else moves. Once all 15 of your checkers are home you may bear off, and the first to bear off all of them wins.
有加倍骰（倍数方块）吗？Is there a doubling cube?
没有。本游戏只计算普胜 1 分、全胜 2 分（对方一枚都没移出）、大全胜 3 分（对方还有棋子在横栏或你的内盘），纯属娱乐，不涉及任何金钱。No. A win scores 1 point, a gammon 2 (the loser bore off none) and a backgammon 3 (the loser still has a checker on the bar or in your home board) — just for fun, with no money involved.
为什么有时只能用一个骰子？Why can I sometimes use only one die?
规则要求尽量把两个点数都用上；如果只能用其中一个，就必须用较大的那个。游戏会自动只提示符合规则的走法。The rules require you to use both dice whenever possible, and if only one can be used it must be the larger. The game only offers moves that follow this rule.
「双陆棋」免费吗？需要下载吗？Is Backgammon free? Do I need to download anything?
完全免费，无需注册、下载或安装，打开网页就能玩，手机、平板和电脑都支持；游戏完全在你的浏览器本地运行，不会上传任何数据。It is completely free with no sign-up, download or install — just open the page on a phone, tablet or computer. The game runs entirely in your browser and nothing is uploaded.