2步杀:兵到h4 (h5)
li-06ftU命名标签 (格·N)战术主题
两步将杀:第一步制造无法化解的威胁,第二步完成将杀。
难度1660 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
Mate in two usually opens with a forcing move — a check, a capture or an unstoppable threat — that strips the king of squares or defenders, so the follow-up mate becomes unavoidable. Look for the first move that leaves the opponent only losing replies.
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 g3, 车 c3, 象 a4, 兵 f3 e4 g4 c6。
黑方:王 g7, 车 a2, 象 g1, 兵 g5 h5 e6 f6。
棋盘上有7枚白棋和7枚黑棋;该题局面出现在第49回合之后。
The position in numbers
Material is level — 12 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on g3, the black king on g7.
It is Black to move on move 49, with 28 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 4. Files fully open (no pawns of either colour): a, b, d — natural highways for the rooks and queen. Half-open for Black: c.
The Black king has 7 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
49... h4+ 50. Kh3 Rh2#
为何奏效
- 好棋!兵到h4保持压力(#1)。
- 好棋!车到h2保持压力(#)。
- 该变着以2步强制将杀结束。
- 若改走Kh3,则Rh2#,即被将杀。
Move by move
- 49… h4+ — 兵 to h4 with check
- 50. Kh3 — 王 to h3
- Rh2# — 车 to h2 and it is checkmate
本题的题型
两步杀
两步之内的强制将杀。
两步杀:你走一步,对方任意应一步,然后是致命一击。从最强制的首着开始:将军和弃子,把对手的选择压到最少。对他的每一种应法,你都必须备好将杀——所有回应都要检查,一个不漏。常见的失误是算清了漂亮的防守,却忘了那个平淡无奇的。
突破
弃兵撕开兵链,让通路兵冲出去。
突破:一次兵的牺牲撕开对方兵链,制造出无法阻挡的通路兵。到兵与兵顶死的地方寻找它:常常是送掉两个兵,让第三个溜过去。核对方格:对方的王追不追得上新通路兵——追不上就大胆牺牲。错误做法是在敌王就站在旁边、能通吃一切时强行突破。
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 013
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