解救王到f7
li-0CBVA战术主题
解救棋子:你的棋子正受攻击——找到最佳解救方法。
难度1910 ShuffleRating——适合进阶战术爱好者。
黑方走棋——找出最佳续着
How to recognize this tactic
Here the task is defensive: one of your pieces is under attack and must be rescued without losing more. Look for a move that saves it with tempo — a counter-check, an equal counter-attack or an interposition — rather than a passive retreat.
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 h1, 后 d2, 车 c8, 象 h6, 兵 a2 g2 h2 b3 e4 d5。
黑方:王 g8, 后 b6, 车 f2, 象 g7, 兵 e5 a6 d6 g6 b7 h7。
棋盘上有10枚白棋和10枚黑棋;该题局面出现在第25回合之后。
The position in numbers
Material is level — 23 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on h1, the black king on g8.
It is Black to move on move 25, with 4 legal replies to weigh — only the line that keeps the advantage solves the puzzle. Black are in check right now, so every reply must answer the check.
White keeps 6 pawns, Black 6. Files fully open (no pawns of either colour): c, f — natural highways for the rooks and queen.
The Black 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
25... Kf7 26. Qc1 Bxh6 27. Qc7+ Qxc7
为何奏效
- 好棋!王到f7保持压力(+4.0)。
- 好棋!象到h6保持压力(+4.1)。
- 好棋!后到c7保持压力(+4.5)。
- 你赢得一子——后。
- 若改走Qc1,则Bxh6,你赢得象。
Move by move
- 25… Kf7 — 王 to f7
- 26. Qc1 — 后 to c1
- Bxh6 — 象 to h6 (capture)
- 27. Qc7+ — 后 to c7 with check
- Qxc7 — 后 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。
救子
被攻击的子不但能救,还能顺手赚一笔。
救子:你的棋子被攻击,任务是别白白送掉它。办法有几种:带节奏地撤退、加以保护、垫挡攻击,或制造更凶的对攻威胁。机械后撤之前,先找带反击的撤退——既救了子又赚了时间。典型错误是惊慌失措逃到随便一个格子,结果棋子又被抓住。
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 014
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