闪击：马到e3
li-07AP3战术主题
闪击：一子闪开，另一子的攻击随之而来。
难度1620 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 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.
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 e2, 车 a3, 兵 f2 g2 h2 c5。
黑方：王 g8, 车 d1 f7, 马 f1, 兵 a5 b7 c7 g7 h7。
棋盘上有7枚白棋和9枚黑棋；该题局面出现在第24回合之后。
The position in numbers
Material is level — 18 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 g8.
It is Black to move on move 24, with 33 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 5. Files fully open (no pawns of either colour): d, e — natural highways for the rooks and queen. Half-open for Black: f.
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
24... Ne3+ 25. Qxd1 Nxd1
为何奏效
- 好棋！马到e3保持压力（+5.1）。
- 好棋！马到d1保持压力（+5.0）。
- 你赢得一子——后。
- 若改走Qxd1，则Nxd1，你赢得后。
Move by move
- 24… Ne3+ — 马 to e3 with check
- 25. Qxd1 — 后 to d1 (capture)
- Nxd1 — 马 to d1 (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。
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 012
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