♠️ 空当接龙FreeCell Solitaire
在线空当接龙（FreeCell）：经典编号牌局 1–1000000 可指定局号，拖拽或点按移牌，按空当数自动计算可整体移动的张数，安全牌自动收牌，无限撤销并保存进度。Play FreeCell online with the classic numbered deals (1–1,000,000): drag or tap to move, multi-card moves sized by free cells and empty columns, safe cards auto-move to the foundations, unlimited undo and auto-save.
拖动牌到目标位置，或点一下牌自动移到最合适的位置（优先收牌区，其次牌列，最后空当）。键盘：Tab 选择位置后按回车移动，U/Ctrl+Z 撤销。Drag cards, or tap a card to send it to the best spot (foundation, then a column, then a free cell). Keyboard: Tab to a pile and press Enter, U/Ctrl+Z to undo.
玩法说明与常见问题How to play & FAQ
「空当接龙」怎么玩？How do I play FreeCell Solitaire?
52 张牌全部明牌发成 8 列。左上 4 个空当各能临时存放一张牌，右上 4 个收牌区按花色从 A 收到 K。牌列中只能把牌接到颜色相反、点数大 1 的牌下面，空列可以放任何牌。全部收进收牌区即获胜。All 52 cards are dealt face up into 8 columns. The four free cells (top left) each hold one card; the four foundations (top right) are built up by suit from Ace to King. In the columns, build down in alternating colours; any card may go into an empty column. Move every card to the foundations to win.
每一局都能解吗？Is every deal solvable?
几乎都可以。经典的前 32000 局里只有第 11982 局被证明无解，可以输入局号挑战同一副牌。Almost all of them. Of the classic first 32,000 deals only #11982 is known to be unsolvable; enter a deal number to replay a specific game.
一次能移动几张牌？How many cards can I move at once?
一次可移动的张数 =（空当数 + 1）×2^空列数；移到空列时空列数少算一个。顶部「可移」会实时显示。You can move (free cells + 1) × 2^(empty columns) cards; when moving into an empty column, that column doesn’t count. The “max move” figure shows the current limit.
自动收牌会不会收走我还需要的牌？Will auto-move take cards I still need?
只会自动收“安全”的牌：A、2，以及两种异色花色都已收到比它小 1 点的牌，这些牌在牌列里已经不会再被用到。Only safe cards are moved automatically: aces, twos, and cards whose opposite-colour foundations are already one rank below — they can no longer be needed in the columns.
「空当接龙」免费吗？需要下载吗？Is FreeCell Solitaire 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.