🔲 点格棋Dots and Boxes
在线点格棋（围格子）人机对战：轮流在相邻两点间连线，补上方格第四条边就占领该格并再走一次；3×3 到 6×6 多种尺寸，三档电脑（困难会用“让二”控盘技巧），可双人对战与悔棋。Play dots and boxes online: take turns joining two neighbouring dots; complete the fourth side of a box to claim it and move again. Boards from 3×3 to 6×6, three computer levels (Hard uses the double-dealing control trick), two-player mode and undo.
点击两个点之间的空白处画线。键盘：方向键在点阵上移动光标（停在两点之间时为一条线），回车 画线，U 悔棋。Click between two dots to draw a line. Keyboard: arrows move a cursor over the dot lattice (between two dots = a line), Enter draws, U undo.
玩法说明与常见问题How to play & FAQ
「点格棋」怎么玩？How do I play Dots and Boxes?
双方轮流在横向或纵向相邻的两个点之间画一条线。谁画下某个方格的第四条边，谁就占领这个方格，并且必须再画一条。所有线画完后占领方格多的一方获胜。Players take turns drawing a horizontal or vertical line between two neighbouring dots. Whoever draws the fourth side of a box claims it and must draw again. When every line is drawn, the player with more boxes wins.
什么是“让二”（double-dealing）？What is double-dealing?
到了残局，所有画线都会送格子给对方。这时吃一条长链时故意留下最后两格不吃，对方吃掉这两格后只能再去打开下一条链，你就能继续控制局面拿走更多格子。困难难度的电脑会使用这一技巧。Late in the game every move hands boxes away. When taking a long chain you can decline the last two boxes; your opponent takes them but must then open the next chain for you. Hard uses this control trick.
格子越多越难吗？Are bigger boards harder?
是的。3×3 一局很快，适合热身；5×5、6×6 的链条更长，更考验你对“长链数量”的规划。Yes. 3×3 is a quick warm-up; 5×5 and 6×6 have longer chains and reward planning the number of long chains.
先手还是后手好？Is it better to go first or second?
取决于棋盘大小和长链数量的奇偶性，没有固定答案，可以都试试。It depends on the board and the parity of long chains — try both.
「点格棋」免费吗？需要下载吗？Is Dots and Boxes 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.