攻击未易位的王：后到b7 (g2·3)
sf-u-0026命名标签 (格·N)战术主题
未易位的王：对方的王还困在中路——趁它易位之前发起进攻。
两步将杀：第一步制造无法化解的威胁，第二步完成将杀。
960特色：利用与众不同的初始布局。
难度1320 ShuffleRating——俱乐部棋手水平。
白方走棋——找出最佳续着
How to recognize this tactic
An uncastled king in the centre is a standing target. Look for ways to open the central files and diagonals against it with checks and threats before it can shelter — every tempo the king spends in the middle is a chance for a combination.
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.
In Chess960 the pieces start on unfamiliar squares, so tactics appear earlier and from unusual angles. Do not trust classical patterns — read the actual lines of the bishops, the rooks and the queen from where they really stand in this position.
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 d1, 后 g2, 车 b1, 象 a8 b8, 马 h1 c5, 兵 a2 c2 h2 b3 e3 f4 g4。
黑方：王 c8, 后 a3, 车 f8, 象 c3, 马 d2 h8, 兵 b5 g5 f6 d7 e7 h7。
棋盘上有14枚白棋和12枚黑棋；该题局面出现在第18回合之后。
The position in numbers
White are ahead by 4 points of material (33 against 29; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on d1, the black king on c8.
It is White to move on move 18, with 41 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 7 pawns, Black 6. No file is fully open, so the heavy pieces have to be pried in. Half-open for White: d.
White hold the bishop pair, an edge in open lines. The White king has 2 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. Qb7+ Kd8 19. Qxd7#
为何奏效
- 好棋！后到b7保持压力（#1）。
- 好棋！后到d7保持压力（#）。
- 该变着以2步强制将杀结束。
- 若改走Kd8，则Qxd7#，即被将杀。
Move by move
- 18. Qb7+ — 后 to b7 with check
- Kd8 — 王 to d8
- 19. Qxd7# — 后 to d7 (capture) and it is checkmate
本题的题型
护卫后杀
皇后贴脸将杀，身后有自己人保护。
有保护的贴身后杀是最常见的将杀图案：后紧贴国王落子，因为有己方棋子或兵保护而成杀。国王无处可逃：吃后不行——那格有保护，而周围所有格子后亲自看管。寻找敌王旁边受保护的格子：有马、象或兵控制它，后的登陆就成了将杀。只需核实一件事：那个格子真有保护，否则国王会直接吃掉后。
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。
反击
别忙着防守——用更大的威胁回敬对手。
反击：面对威胁你的回应不是防守，而是自己的威胁——更强的那种。趁对手吃你的兵，你宣布将杀：这笔账算在你这边。当直接防守都不好时寻找反击：你有没有将军、攻后的手段、做杀的威胁？新手的错误是对每个威胁都条件反射地防守，从不先查一查对攻资源。
来源
挖掘自项目引擎的自对弈对局。
经 Stockfish 深度 20+ 验证。
解法强制性已确认（verified）。
题包 010
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