捉双:马到e2 (d4·2)
li-01pTi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840 ShuffleRating——适合初学者迈出Chess960战术的第一步。
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 c1, 后 g3, 车 h1, 象 c5, 兵 a2 b2 c2 g2 h2。
黑方:王 g8, 后 d8, 车 a8, 马 d4, 兵 b4 a6 f7 g7 h7。
棋盘上有9枚白棋和9枚黑棋;该题局面出现在第22回合之后。
The position in numbers
Material is level — 22 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on c1, the black king on g8.
It is Black to move on move 22, with 34 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): d, e — natural highways for the rooks and queen. 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
22... Ne2+ 23. Kb1 Nxg3
为何奏效
- 好棋!马到e2保持压力(+6.5)。
- 好棋!马到g3保持压力(+6.6)。
- 你赢得一子——后。
- 若改走Kb1,则Nxg3,你赢得后。
Move by move
- 22… Ne2+ — 马 to e2 with check
- 23. Kb1 — 王 to b1
- Nxg3 — 马 to g3 (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 004
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