闪击：马到d4 (f5)
li-0LDZf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1867 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 c3, 车 b1 f1, 象 e2 f4, 马 f3 d4, 兵 b2 f2 g2 h2 a4 e5。
黑方：王 g8, 后 c7, 车 a8 f8, 象 d7 e7, 马 f5 c6, 兵 a6 e6 b7 g7 h7。
棋盘上有14枚白棋和13枚黑棋；该题局面出现在第17回合之后。
The position in numbers
White are ahead by 1 points of material (37 against 36; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on g1, the black king on g8.
It is Black to move on move 17, with 50 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 6 pawns, Black 5. Files fully open (no pawns of either colour): c, d — 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
17... Nfxd4 18. Nxd4 Rxf4
为何奏效
- 好棋！马到d4保持压力（+3.7）。
- 好棋！车到f4保持压力（+3.6）。
- 你赢得一子——象。
- 若改走Nxd4，则Rxf4，你赢得象。
Move by move
- 17… Nfxd4 — 马 to d4 (capture)
- 18. Nxd4 — 马 to d4 (capture)
- Rxf4 — 车 to f4 (capture)
本题的题型
引入
用弃子把王或某个子引到致命的格子上。
引入是引离的镜像兄弟：你用弃子把国王或棋子拖到致命的格子上。经典手法是弃后或弃车：对方一吃，国王就落入马的捉双、闪将或杀网。先找到目标将被下一击命中的格子，再准备一份它无法拒绝的礼物。要把组合算到底：只有后续着法是强制的，引入才能成立。
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）。
题包 014
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