吃掉无保护的兵(h6) (g7)
li-0BdCZ命名标签 (格·N)战术主题
悬子:对方有棋子无人保护——吃掉它。
难度2121 ShuffleRating——专家水平——很少有人一次解出。
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 a2, 后 h6, 车 g1, 马 g3, 兵 b3 f3 e4。
黑方:王 g8, 后 e7, 车 d8, 兵 a3 d4 e5 f6 b7 g7。
棋盘上有7枚白棋和9枚黑棋;该题局面出现在第29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 a2, the black king on g8.
It is Black to move on move 29, with 26 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 3 pawns, Black 6. Files fully open (no pawns of either colour): c, h — natural highways for the rooks and queen.
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
29... gxh6 30. Nf5+ Kf8 31. Nxe7 Kxe7
为何奏效
- 好棋!兵到h6保持压力(+4.8)。
- 好棋!王到f8保持压力(+4.9)。
- 好棋!王到e7保持压力(+5.3)。
- 你赢得一子——后。
- 若改走Nf5+,则Kf8,你赢得后。
Move by move
- 29… gxh6 — 兵 to h6 (capture)
- 30. Nf5+ — 马 to f5 with check
- Kf8 — 王 to f8
- 31. Nxe7 — 马 to e7 (capture)
- Kxe7 — 王 to e7 (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。
简化
换掉重子,把局面导入赢定的残局。
简化是兑现优势的技术:兑掉后和车,你就掐灭了对方的反扑,把对局引入赢定的残局。规则简单:子力占优的一方兑子,但保兵。当子力已经赢到手、对手还在虚张声势时,就去找兑换。错误做法是回避兑后,任由对手用没完没了的威胁搅浑水。
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 015
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