1步杀：牵制，d6
li-0InOi战术主题
一步将杀：找到让对方王无路可逃的一着棋。
牵制：棋子一动，身后更有价值的目标就会暴露。
难度1815 ShuffleRating——适合进阶战术爱好者。
白方走棋——找出最佳续着
How to recognize this tactic
A mate in one hides among forcing checks. Run through every check you can give: does it cover all the king's escape squares, is the checking piece safe or supported, and can nothing block or capture it? If yes, that is the mate.
A pin freezes a piece in front of a more valuable one behind it. Scan the ranks, files and diagonals your bishop, rook or queen controls: if an enemy piece cannot move without exposing its king or queen, it is pinned and can be piled on or bypassed.
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 f7, 车 d1, 象 c4, 马 b5, 兵 c2 g2 b3 h3 a4。
黑方：王 d7, 后 d8, 车 c8 f8, 马 c5, 兵 b4 h4 a5 e5 d6 e7。
棋盘上有10枚白棋和11枚黑棋；该题局面出现在第24回合之后。
The position in numbers
Black are ahead by 3 points of material (25 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 d7.
It is White to move on move 24, with 43 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 5 pawns, Black 6. Files fully open (no pawns of either colour): f — natural highways for the rooks and queen. Half-open for White: d, e.
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
24. Rxd6#
为何奏效
- 好棋！车到d6保持压力（#）。
- 该变着以1步强制将杀结束。
Move by move
- 24. Rxd6# — 车 to d6 (capture) and it is checkmate
本题的题型
钩杀
车、马、兵构成一个钩子，王无处可逃。
挂钩杀是三子构成的结构：车将杀，马保护车，兵保护马。车沿线贴身打击国王，马斜站一旁夺走逃生格，兵为整条锁链上保险。这个图案通常在车杀入棋盘边缘后出现。一环扣一环地搭建它：先让马在兵的保护下站稳，再让车杀进去。
一步杀
一步将杀——把它找出来。
一步杀：组合已经落幕，只剩最后一发精准的子弹。方法很简单——列出你所有的将军，对每一个检验国王的三条生路：逃跑、垫挡、吃掉将军者。三条都行不通，那就是将杀。典型错误是爱上找到的第一个将军，漏掉那扇唯一的逃生小窗。
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。
来源
源自 Lichess 题库（CC0）。
题包 013
相似题目
在浏览器或 Android 应用中。无需安装 · 免费，无广告