闪击：象到d5 (f3·2)
li-09MBu命名标签 (格·N)战术主题
闪击：一子闪开，另一子的攻击随之而来。
难度2024 ShuffleRating——专家水平——很少有人一次解出。
白方走棋——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 d4, 车 d1 f1, 象 f3, 马 c3, 兵 a2 g2 h2 b3 e5。
黑方：王 g8, 后 b6, 车 f4 e8, 象 g6, 马 c5, 兵 d5 c6 a7 g7 h7。
棋盘上有11枚白棋和11枚黑棋；该题局面出现在第23回合之后。
The position in numbers
Material is level — 30 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 White to move on move 23, with 40 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): f — natural highways for the rooks and queen. Half-open for White: c, d.
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
23. Bxd5+ cxd5 24. Rxf4 Ne6 25. Qxb6
为何奏效
- 好棋！象到d5保持压力（+3.5）。
- 好棋！车到f4保持压力（+3.7）。
- 好棋！后到b6保持压力（+3.8）。
- 你赢得一子——后。
- 若改走cxd5，则Rxf4，你赢得车。
Move by move
- 23. Bxd5+ — 象 to d5 (capture) with check
- cxd5 — 兵 to d5 (capture)
- 24. Rxf4 — 车 to f4 (capture)
- Ne6 — 马 to e6
- 25. Qxb6 — 后 to b6 (capture)
本题的题型
闪击
一个子闪开，让后面的子发起第二重攻击。
闪击就像拉开幕布：一个棋子离开直线，露出身后的远程棋子发动打击。妙处在于，走开的那个棋子自己还能攻击第二个目标——一步棋，两记重拳。检查你的叠置组合：马或兵的身后站着象或车，透过它们瞄准对方值钱的东西。前面的棋子要跳到最有攻击性的格子——没有第二威胁的闪击损失一半威力。
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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