吃掉无保护的王(d6)
li-000lC战术主题
悬子:对方有棋子无人保护——吃掉它。
难度1374 ShuffleRating——俱乐部棋手水平。
黑方走棋——找出最佳续着
How to recognize this tactic
A hanging piece is one that is attacked and not defended, or defended too few times. Count attackers against defenders on each enemy unit; where attackers win, take it — often with an in-between move or a check to gain the extra tempo.
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 b7, 车 f1 d6, 象 b5, 马 c7, 兵 a2 b2 c2 g2 h2。
黑方:王 d7, 后 b6, 车 d8 h8, 马 c6 f6, 兵 a7 f7 g7 h7。
棋盘上有11枚白棋和10枚黑棋;该题局面出现在第19回合之后。
The position in numbers
White are ahead by 1 points of material (30 against 29; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on h1, the black king on d7.
It is Black to move on move 19, with 2 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 5 pawns, Black 4. Files fully open (no pawns of either colour): d, e — natural highways for the rooks and queen. Half-open for Black: b, c.
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
19... Kxd6 20. Qxb6 axb6
为何奏效
- 好棋!王到d6保持压力(+4.2)。
- 好棋!兵到b6保持压力(+4.3)。
- 你赢得一子——后。
- 若改走Qxb6,则axb6,你赢得后。
Move by move
- 19… Kxd6 — 王 to d6 (capture)
- 20. Qxb6 — 后 to b6 (capture)
- axb6 — 兵 to b6 (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。
反击
别忙着防守——用更大的威胁回敬对手。
反击:面对威胁你的回应不是防守,而是自己的威胁——更强的那种。趁对手吃你的兵,你宣布将杀:这笔账算在你这边。当直接防守都不好时寻找反击:你有没有将军、攻后的手段、做杀的威胁?新手的错误是对每个威胁都条件反射地防守,从不先查一查对攻资源。
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 010
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