捉双:象到g4
li-01tIS战术主题
捉双:一子同时攻击两个目标——无法两全。
难度821 ShuffleRating——适合初学者迈出Chess960战术的第一步。
白方走棋——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 d1, 车 a1 f1, 象 e2 e3, 兵 a2 c2 f2 c4 d4 e4。
黑方:王 c8, 后 h3, 车 d6 h8, 马 c6 g8, 兵 a7 b7 c7 f7 g7 h7。
棋盘上有12枚白棋和12枚黑棋;该题局面出现在第14回合之后。
The position in numbers
Material is level — 31 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 c8.
It is White to move on move 14, with 25 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 6 pawns, Black 6. No file is fully open, so the heavy pieces have to be pried in. Half-open for White: b, g, h.
White hold the bishop pair, an edge in open lines. The White king has 0 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
14. Bg4+ Qxg4+ 15. Qxg4+
为何奏效
- 好棋!象到g4保持压力(+5.1)。
- 好棋!后到g4保持压力(+5.1)。
- 你赢得一子——后。
- 若改走Qxg4+,则Qxg4+,你赢得后。
Move by move
- 14. Bg4+ — 象 to g4 with check
- Qxg4+ — 后 to g4 (capture) with check
- 15. Qxg4+ — 后 to g4 (capture) with check
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。
连将追击
步步将军——把王一路追到必败之地。
连将追击:你的每一步都是将军,对手连一秒钟都腾不出来实施自己的计划。国王被赶着满盘跑,直到丢子或撞上致命一击。这类变化最容易计算:每次将军,王只有寥寥几种应法——全部枚举即可。养成习惯:任何尖锐局面的计算都从将军开始,它们是棋盘上最强制的着法。
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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