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吃掉无保护的兵(h6)

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Shuffle Rating 1735主题: 悬子:对方有棋子无人保护——吃掉它。
黑方走棋——找出最佳续着

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战术主题

悬子:对方有棋子无人保护——吃掉它。

难度1735 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

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 g1, 后 f3, 车 d1, 象 d4, 马 h6, 兵 a2 b2 f2 g3 c4 h4。

黑方:王 g8, 后 b7, 车 e8, 象 f8, 马 e4, 兵 a5 c5 f7 g7 h7。

棋盘上有11枚白棋和10枚黑棋;该题局面出现在第26回合之后。

The position in numbers

White are ahead by 1 points of material (26 against 25; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.

The white king stands on g1, the black king on g8.

It is Black to move on move 26, 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 6 pawns, Black 5. Files fully open (no pawns of either colour): d, e — natural highways for the rooks and queen. Half-open for Black: b.

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

26... gxh6 27. Qg4+ Ng5

为何奏效

  • 好棋!兵到h6保持压力(+2.8)。
  • 好棋!马到g5保持压力(+3.0)。
  • 你赢得一子——马。
  • 若改走Qg4+,则Ng5,你赢得马。

Move by move

  • 26… gxh6 — 兵 to h6 (capture)
  • 27. Qg4+ — 后 to g4 with check
  • Ng5 — 马 to g5

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 013

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