引离:后到d6
li-02BOt战术主题
引离:迫使防守的棋子离开岗位。
难度1377 ShuffleRating——俱乐部棋手水平。
白方走棋——找出最佳续着
How to recognize this tactic
Deflection drags a defender away from its duty. Identify the enemy piece that guards a key square or mate, then force it to move — with a check, a capture or a threat it must answer — and strike where it no longer defends.
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 d2, 车 c1, 象 e2, 兵 a2 g2 h2 b4 e4。
黑方:王 b8, 后 f6, 车 c8, 象 e6, 兵 f3 e5 h5 a7 b7。
棋盘上有9枚白棋和9枚黑棋;该题局面出现在第28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 b8.
It is White to move on move 28, with 45 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): c, d — natural highways for the rooks and queen. Half-open for White: f.
The White king has 3 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
28. Qd6+ Ka8 29. Rxc8+ Bxc8 30. Qxf6
为何奏效
- 好棋!后到d6保持压力(+7.1)。
- 好棋!车到c8保持压力(+7.4)。
- 好棋!后到f6保持压力(+7.4)。
- 你赢得一子——后。
- 若改走Ka8,则Rxc8+,你赢得车。
Move by move
- 28. Qd6+ — 后 to d6 with check
- Ka8 — 王 to a8
- 29. Rxc8+ — 车 to c8 (capture) with check
- Bxc8 — 象 to c8 (capture)
- 30. Qxf6 — 后 to f6 (capture)
本题的题型
相对牵制
一个子挡在更有价值的子前面——它一动就丢子。
相对牵制:被牵制棋子身后站的不是国王,而是更值钱的东西——通常是后。它可以走,但走了就亏:身后的棋子会挨打。寻找一条线上的三个棋子:你的远程棋子、对方较便宜的棋子、以及躲在后面的贵重棋子。小心经典陷阱——只被相对牵制的棋子有时仍会动,带着将军或更大的威胁,吃子前务必核实。
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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