闪击：马到d5
li-05GPQ战术主题
闪击：一子闪开，另一子的攻击随之而来。
难度1124 ShuffleRating——俱乐部棋手水平。
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 d1, 车 a1 f1, 象 c4 g5, 马 d5, 兵 a2 b2 c2 f2 g2 h2 e4。
黑方：王 g8, 后 d8, 车 a8 f8, 象 e7 c8, 马 f6, 兵 e5 a6 d6 b7 f7 g7 h7。
棋盘上有14枚白棋和14枚黑棋；该题局面出现在第11回合之后。
The position in numbers
Material is level — 35 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 11, with 26 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 7 pawns, Black 7. No file is fully open, so the heavy pieces have to be pried in. Half-open for Black: c.
The Black king has 1 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
11... Nxd5 12. Bxd5 Bxg5
为何奏效
- 好棋！马到d5保持压力（+4.7）。
- 好棋！象到g5保持压力（+4.5）。
- 你赢得一子——象。
- 若改走Bxd5，则Bxg5，你赢得象。
Move by move
- 11… Nxd5 — 马 to d5 (capture)
- 12. Bxd5 — 象 to d5 (capture)
- Bxg5 — 象 to g5 (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 007
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