⬢ 六贯棋（海克斯棋）Hex
在线六贯棋（Hex 海克斯棋）人机对战：在菱形六边形棋盘上轮流落子，红方连通上下两边、蓝方连通左右两边，永不平局；7×7、9×9、11×11 三种棋盘，蒙特卡洛电脑三档难度，可双人对战与悔棋。Play Hex online: take turns placing stones on a rhombus of hexagons — red links top and bottom, blue links left and right, and there are never draws. 7×7, 9×9 and 11×11 boards, three Monte-Carlo computer levels, two-player mode and undo.
点击空的六边形落子。红方要用一串相连的红子连接上下两条红边，蓝方连接左右两条蓝边。键盘：方向键移动光标，回车 落子，U 悔棋。Click an empty hexagon. Red must link the two red edges (top and bottom) with a chain of red cells, blue the two blue edges (left and right). Keyboard: arrows move the cursor, Enter plays, U undo.
玩法说明与常见问题How to play & FAQ
「六贯棋（海克斯棋）」怎么玩？How do I play Hex?
双方轮流在空格里放一枚自己颜色的棋子，棋子放下后不再移动。每个六边形和周围 6 格相邻。红方的目标是用相连的红子把上边和下边连起来，蓝方则要连通左边和右边。先连通者获胜。Players take turns placing a stone of their colour in an empty hexagon; stones never move. Each cell touches six neighbours. Red wants a connected chain joining the top and bottom edges, blue a chain joining left and right. The first to connect wins.
为什么六贯棋不会平局？Why can there never be a draw?
这是六边形网格的一个数学性质：棋盘下满时，一定恰好有一方连通了自己的两条边——要阻断对方，就必然连通了自己。It is a mathematical property of the hex grid: on a full board exactly one player has connected their edges, because blocking your opponent completely means connecting yourself.
有什么入门技巧？Any beginner tips?
多用“桥”：两颗子隔一个菱形的位置摆放，对方插进一个空位，你就补另一个，保证连接。中心位置比边角更有价值。Use “bridges”: two stones placed so that two empty cells join them — if your opponent takes one, you take the other. Central cells are worth more than edges.
先手是不是更有利？Is going first an advantage?
是的，先手在理论上必胜，因此比赛中常用“交换规则”。这里你可以选择执蓝后手来挑战电脑，或在双人模式中轮流先手。Yes — the first player wins with perfect play, which is why tournaments use a swap rule. Try playing blue against the computer, or alternate in two-player mode.
「六贯棋（海克斯棋）」免费吗？需要下载吗？Is Hex 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.