捉双:后到c5 (d6)
li-001wr命名标签 (格·N)战术主题
捉双:一子同时攻击两个目标——无法两全。
难度1013 ShuffleRating——俱乐部棋手水平。
黑方走棋——找出最佳续着
How to recognize this tactic
A fork is one piece attacking two targets at once. Look for a knight, pawn or queen move that lands where it hits the king (or a bigger piece) and a second undefended unit on the same turn — the opponent can save only one.
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 d2, 车 d1 e1, 象 c4 g5, 马 c3, 兵 b2 c2 g2 h2 f3 d5 a6。
黑方:王 g8, 后 d6, 车 a8 f8, 象 f5 g7, 马 f6, 兵 e5 b6 g6 a7 e7 f7 h7。
棋盘上有14枚白棋和14枚黑棋;该题局面出现在第18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 18, with 40 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, d.
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
18... Qc5+ 19. Kh1 Qxc4
为何奏效
- 好棋!后到c5保持压力(+3.4)。
- 好棋!后到c4保持压力(+3.5)。
- 你赢得一子——象。
- 若改走Kh1,则Qxc4,你赢得象。
Move by move
- 18… Qc5+ — 后 to c5 with check
- 19. Kh1 — 王 to h1
- Qxc4 — 后 to c4 (capture)
本题的题型
王室捉双
带将军的捉双:王必须躲开,另一个子就丢了。
王家捉双是带将军的捉双:两个目标之一是国王本身。国王必须首先应将,因此没有人、也没有时间去救第二个棋子。寻找这样的格子:你的棋子从那里将军,同时攻击无保护的后或车。这是最可靠的捉双——对手根本没有选择的余地。
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 006
相似题目
在浏览器或 Android 应用中。无需安装 · 免费,无广告