攻击未易位的王：车到b3 (e3)
sf-u-0005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1450 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 b1, 后 f2, 车 a1 e3, 象 d1, 马 f3, 兵 b2 c2 g2 a3 h3 e4 f5。
黑方：王 b8, 后 h6, 车 a8 c8, 象 f7, 马 c7 g8, 兵 a4 e5 h5 c6 d6 f6 g6。
棋盘上有13枚白棋和14枚黑棋；该题局面出现在第19回合之后。
The position in numbers
Black are ahead by 3 points of material (32 against 35; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on b1, the black king on b8.
It is White to move on move 19, with 31 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 7 pawns, Black 7. No file is fully open, so the heavy pieces have to be pried in. Half-open for White: d.
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
19. Rb3+ axb3 20. Qb6#
为何奏效
- 好棋！车到b3保持压力（#1）。
- 好棋！后到b6保持压力（#）。
- 该变着以2步强制将杀结束。
- 若改走axb3，则Qb6#，即被将杀。
Move by move
- 19. Rb3+ — 车 to b3 with check
- axb3 — 兵 to b3 (capture)
- 20. Qb6# — 后 to b6 and it is checkmate
本题的题型
肩章杀
王的两侧被自己的子像肩章一样夹住——杀着迎面而来。
肩章杀：国王站在自己两个棋子中间，像戴肩章的军官——最常见的是两侧的双车。两旁的格子被自己人占据，身后无路可退——后从正面贴脸将杀。识别特征：国王在边线横排上，同排两侧的相邻格都被己方棋子占据。请记住：紧贴国王的多余保镖，有时比没有保镖更致命。
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。
天梯杀
两个重子一线一线地推进，切断所有退路。
阶梯杀（线性杀）：两枚重子像爬梯子一样协作——一枚沿一条线切断国王，另一枚在相邻线上将军，一步步把他逼向棋盘边缘。这是双车的经典技巧：将军，国王退一排，另一只车再将军——直到底线将杀。唯一的危险是国王贴近来攻击你的车。真遇上了，把那只车平移到同一条线的远端即可。
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 011
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