捉双：车到c8
li-02vv1战术主题
捉双：一子同时攻击两个目标——无法两全。
难度911 ShuffleRating——适合初学者迈出Chess960战术的第一步。
白方走棋——找出最佳续着
How to recognize this tactic
A fork is one piece attacking two targets at once. Look for a knight, pawn or queen move that lands where it hits the king (or a bigger piece) and a second undefended unit on the same turn — the opponent can save only one.
General method: before you move, list the forcing candidates — every check, every capture, every direct threat — and calculate those first. The solution to a tactic is almost always among them.
棋盘上的局面
白方：王 g1, 车 a1 c1, 象 e5, 马 h2, 兵 f2 g2 h3 a4。
黑方：王 g8, 后 a7, 车 d2, 象 e2, 兵 f5 g6 h7。
棋盘上有9枚白棋和7枚黑棋；该题局面出现在第36回合之后。
The position in numbers
Material is level — 20 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on g1, the black king on g8.
It is White to move on move 36, with 33 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 3. Files fully open (no pawns of either colour): b, c, d, e — natural highways for the rooks and queen.
The White king has 1 empty squares to step to right now — the fewer they are, the closer a mating net.
解答与讲解
主要变着
36. Rc8+ Kf7 37. Rc7+ Qxc7 38. Bxc7
为何奏效
- 好棋！车到c8保持压力（+5.1）。
- 好棋！车到c7保持压力（+5.3）。
- 好棋！象到c7保持压力（+5.2）。
- 你赢得一子——后。
- 若改走Kf7，则Rc7+，你仍占优。
Move by move
- 36. Rc8+ — 车 to c8 with check
- Kf7 — 王 to f7
- 37. Rc7+ — 车 to c7 with check
- Qxc7 — 后 to c7 (capture)
- 38. Bxc7 — 象 to c7 (capture)
本题的题型
制胜一击
找到那记强制得子的妙击。
制胜一击：强制赢得子力，却不归入任何单一的教科书主题。通用的战术配方在此适用：找出无保护的棋子、站位别扭的国王、超载的线路。按力度顺序枚举强制着法：将军、吃子、威胁——绝大多数组合正是从其中之一开始。不要凭感觉评估：把具体变化算到结果确凿无疑为止。
来源
源自 Lichess 题库（CC0）。
经 Stockfish 深度 20+ 验证。
解法强制性已确认（verified）。
题包 004
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