2步杀:引离,h6
li-06XeN战术主题
引离:迫使防守的棋子离开岗位。
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964 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
Deflection drags a defender away from its duty. Identify the enemy piece that guards a key square or mate, then force it to move — with a check, a capture or a threat it must answer — and strike where it no longer defends.
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 h1, 后 g5, 车 d1 h4, 兵 g2 h2 d3 e4。
黑方:王 g7, 后 f6, 车 b3 f8, 象 e6, 兵 c4 c6 d6 g6 f7 h7。
棋盘上有8枚白棋和11枚黑棋;该题局面出现在第31回合之后。
The position in numbers
Black are ahead by 5 points of material (23 against 28; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on h1, the black king on g7.
It is White to move on move 31, with 36 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 6. Files fully open (no pawns of either colour): a, b — natural highways for the rooks and queen. Half-open for White: c, f.
The White 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
31. Qh6+ Kh8 32. Qxf8#
为何奏效
- 好棋!后到h6保持压力(#1)。
- 最佳着法。后到f8正是引擎的选择(#)。
- 该变着以2步强制将杀结束。
- 若改走Kh8,则Qxf8#,即被将杀。
Move by move
- 31. Qh6+ — 后 to h6 with check
- Kh8 — 王 to h8
- 32. Qxf8# — 后 to f8 (capture) and it is checkmate
本题的题型
角落杀
被逼进角落的王,再也没有落脚的格子。
角落杀:国王被赶进棋盘一角,那里他只有三个相邻格——而它们全被夺走或占据。角落是国王最糟糕的住所:进攻方需要控制的格子最少。用将军把国王往角落里赶,绝不让他溜回中心。在最后一击之前切断所有逃亡路线——将杀几乎会自己成形。
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。
绝对牵制
一个子被牵制在王前——按规则它根本不能动。
绝对牵制:一个棋子被冻结在自己国王与你的远程棋子之间的直线上——按规则它根本不许移动。特征是三个单位排在一条直线上:你的象、车或后,敌方棋子,以及它身后的敌方国王。被牵制的棋子既不能进攻也不能防守,就当它不在棋盘上。放心地再次攻击它,最好用兵——它无权逃跑。
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 005
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