攻击未易位的王:车到e8 (e4·6)
sf-u-0129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1090 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 g1, 车 f1 e4, 象 b1 g5, 马 a5, 兵 a2 b2 g2 d4 h4。
黑方:王 g8, 车 b8 h8, 象 g4 d6, 马 c8, 兵 h5 c6 a7 b7 g7。
棋盘上有11枚白棋和11枚黑棋;该题局面出现在第19回合之后。
The position in numbers
Material is level — 24 points of pieces on each side (pawn = 1, knight and bishop = 3, rook = 5, queen = 9).
The white king stands on g1, the black king on g8.
It is White to move on move 19, with 41 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 5 pawns, Black 5. Files fully open (no pawns of either colour): e, f — natural highways for the rooks and queen. Half-open for White: c.
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
19. Re8+ Bf8 20. Rfxf8#
为何奏效
- 好棋!车到e8保持压力(#1)。
- 最佳着法。车到f8正是引擎的选择(#)。
- 该变着以2步强制将杀结束。
- 若改走Bf8,则Rfxf8#,即被将杀。
Move by move
- 19. Re8+ — 车 to e8 with check
- Bf8 — 象 to f8
- 20. Rfxf8# — 车 to f8 (capture) 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。
围猎被牵制子
被牵制的子逃不掉——再次攻击它,把它拿下。
被牵制的棋子无法逃跑——这意味着只要再攻击它一次,就能整个赢下它。数一数攻击者和防守者:如果进攻方更多,这个子就是你的了。最好的「第二攻击者」是兵:它比它能吃到的任何东西都便宜。别急着立刻吃——先加强压力,然后再收割。
未易位之王
王在中路磨蹭——惩罚这种拖延。
惩罚未易位的王:对手拖延易位——他的王困在出发格上挨打。在 Chess960 中这比古典棋更危险:王可能站在中央,也可能靠边,习惯的防守套路统统失灵。识别特征:受害者还保有易位权,而通向他王的直线已半开。要赶在国王藏好之前打开线路。
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 007
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