串击:后到a3 (e3)
li-0DBp4命名标签 (格·N)战术主题
引离:迫使防守的棋子离开岗位。
闪击:一子闪开,另一子的攻击随之而来。
串击:有价值的棋子被迫离开,暴露出身后的棋子。
难度1815 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
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.
A discovered attack fires when one piece steps aside and unmasks the piece behind it. Look for your own units that block a rook, bishop or queen: moving the front piece — ideally with a threat of its own — springs two attacks in one move.
A skewer is a pin reversed — the valuable piece stands in front and, when it moves, the piece behind falls. Line your rook, bishop or queen up against the king or queen and win whatever is hiding behind it.
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 c1, 后 e3, 象 f5, 马 h7, 兵 a2 b2 f2 c4 d5。
黑方:王 d6, 后 e7, 车 h8, 象 c8, 兵 e5 a6 b6 f6 c7 f7。
棋盘上有9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
Black are ahead by 3 points of material (20 against 23; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on c1, the black king on d6.
It is White to move on move 26, with 42 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 5 pawns, Black 6. Files fully open (no pawns of either colour): g, h — natural highways for the rooks and queen. Half-open for White: e.
The White king has 4 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. Qa3+ c5 27. dxc6+ Kxc6 28. Qxe7
为何奏效
- 好棋!后到a3保持压力(+7.4)。
- 好棋!兵到c6保持压力(+7.6)。
- 好棋!后到e7保持压力(+7.7)。
- 你赢得一子——后。
- 若改走c5,则dxc6+,你仍占优。
Move by move
- 26. Qa3+ — 后 to a3 with check
- c5 — 兵 to c5
- 27. dxc6+ — 兵 to c6 (capture) with check
- Kxc6 — 王 to c6 (capture)
- 28. Qxe7 — 后 to e7 (capture)
本题的题型
闪将
移动的子闪出将军——它自己趁机可以随便吃子。
闪将:棋子走开,露出身后远程棋子的将军。在国王忙于应将的时候,刚才移动的棋子可以为所欲为、毫发无损——哪怕顺手吃掉皇后。寻找与敌王同线的己方远程棋子,且两者之间恰好隔着一枚你的棋子。规则很简单:在所有可选的闪开方式中,挑那个能吃到或攻击到最贵目标的。
唯一着法
其他任何一步都会输——找到唯一撑得住的那一步。
唯一着法:除了独一无二的那步棋,其余全输的局面。这里不能「顺手」下棋:把原则上不同的防守都过一遍——逃跑、垫挡、兑换、反击——再淘汰被驳倒的。这类题目的标志:显而易见的着法很快就输,而正解常常看起来古怪。先弄清威胁你的究竟是什么——那步唯一的防守自会现身。
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 013
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