解救后到f5
li-0IPHL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1947 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 g1, 后 d6, 车 e1, 马 f5, 兵 h2 c3 g3 a4 d5。
黑方:王 e8, 后 e4, 车 c8, 马 d7, 兵 e3 a7 b7 g7 h7。
棋盘上有9枚白棋和9枚黑棋;该题局面出现在第30回合之后。
The position in numbers
Material is level — 22 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 e8.
It is Black to move on move 30, with 43 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 5 pawns, Black 5. Files fully open (no pawns of either colour): f — natural highways for the rooks and queen. Half-open for Black: c, d.
The Black king has 2 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
30... Qxf5 31. Rxe3+ Kd8
为何奏效
- 好棋!后到f5保持压力(+2.9)。
- 好棋!王到d8保持压力(+2.9)。
- 你获得制胜局面(+2.9)。
- 若改走Rxe3+,则Kd8,你仍占优。
Move by move
- 30… Qxf5 — 后 to f5 (capture)
- 31. Rxe3+ — 车 to e3 (capture) with check
- Kd8 — 王 to d8
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)。
题包 014
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