吃掉无保护的后(h4)
li-0F81Q战术主题
悬子:对方有棋子无人保护——吃掉它。
难度1911 ShuffleRating——适合进阶战术爱好者。
白方走棋——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 b1, 后 g3, 车 e1 e6, 马 e4, 兵 a2 b2 c3 g4。
黑方:王 g8, 后 f4, 车 f1 f8, 马 h4, 兵 c6 g6 a7 b7。
棋盘上有9枚白棋和9枚黑棋;该题局面出现在第40回合之后。
The position in numbers
Material is level — 26 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on b1, the black king on g8.
It is White to move on move 40, with 34 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 4. Files fully open (no pawns of either colour): d, e, f, h — natural highways for the rooks and queen.
The White 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
40. Qxh4 Rxe1+ 41. Qxe1
为何奏效
- 好棋!后到h4保持压力(+5.2)。
- 好棋!后到e1保持压力(+4.9)。
- 你赢得一子——车。
- 若改走Rxe1+,则Qxe1,你赢得车。
Move by move
- 40. Qxh4 — 后 to h4 (capture)
- Rxe1+ — 车 to e1 (capture) with check
- 41. Qxe1 — 后 to e1 (capture)
本题的题型
腾挪
带着先手把自己的子挪开,为决定性一击腾出线路。
让路:决定性打击被你自己的棋子挡住了——那就把它挪开,甚至干脆送掉。关键是带节奏地让路:闪开时带着将军、吃子或威胁,让对手来不及重新布防。识别特征:你看到后或车有一记好杀招,但需要的线路或格子被自己的棋子占着。别舍不得——让路的弃子通常比错失的攻势便宜得多。
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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