制胜一击：车到b5 (a5)
sf-t-0149命名标签 (格·N)战术主题
制胜战术：有一步棋能取得决定性优势——找到它。
960特色：利用与众不同的初始布局。
难度780 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
This position hides a concrete tactic that wins material or mates. Start with the most forcing candidate moves — checks, captures and threats — and calculate each to a clear end before choosing; the winning line is usually the one the opponent cannot meet.
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 b3, 车 f1 a5, 象 g1 f3, 马 e4, 兵 b2 e2 h2 g3 f4。
黑方：王 b8, 后 c8, 车 b5 b6, 象 g8 h8, 马 f7, 兵 f5 g6 b7 h7。
棋盘上有12枚白棋和11枚黑棋；该题局面出现在第20回合之后。
The position in numbers
White are ahead by 1 points of material (33 against 32; 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 20, with 48 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 5 pawns, Black 4. Files fully open (no pawns of either colour): a, c, d — natural highways for the rooks and queen.
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
20. Rxb5 Nd6 21. Rc1 Qxc1+ 22. Kxc1
为何奏效
- 好棋！车到b5保持压力（+5.6）。
- 合理的出子：车到c1。
- 好棋！王到c1保持压力（+5.8）。
- 你赢得一子——后。
- 若改走Nd6，则Rc1，你赢得车。
Move by move
- 20. Rxb5 — 车 to b5 (capture)
本题的题型
炮台
两个子叠在同一条线上——前面的子以双倍威力出击。
炮台（battery）：两枚远程棋子叠在同一条线上——斜线上后在象后面，或直线上双车相叠。前面的棋子以双倍力量出击：对手吃掉它，立刻挨后面那枚的回击。当两子已同瞄一点、只差前子一击时，炮台就绪。提前在通向敌王的线路上架炮台：叠置本身常常自己孕育出组合。
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 003
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