捉双：后到b7 (d7)
li-01243命名标签 (格·N)战术主题
引离：迫使防守的棋子离开岗位。
捉双：一子同时攻击两个目标——无法两全。
串击：有价值的棋子被迫离开，暴露出身后的棋子。
难度1481 ShuffleRating——俱乐部棋手水平。
白方走棋——找出最佳续着
How to recognize this tactic
Deflection drags a defender away from its duty. Identify the enemy piece that guards a key square or mate, then force it to move — with a check, a capture or a threat it must answer — and strike where it no longer defends.
A fork is one piece attacking two targets at once. Look for a knight, pawn or queen move that lands where it hits the king (or a bigger piece) and a second undefended unit on the same turn — the opponent can save only one.
A skewer is a pin reversed — the valuable piece stands in front and, when it moves, the piece behind falls. Line your rook, bishop or queen up against the king or queen and win whatever is hiding behind it.
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 f1, 后 d7, 象 g7, 兵 a2 b2 f2 g2。
黑方：王 d5, 后 e4, 车 a8, 象 d6, 兵 a7 b7 e7。
棋盘上有7枚白棋和7枚黑棋；该题局面出现在第35回合之后。
The position in numbers
Black are ahead by 4 points of material (16 against 20; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on f1, the black king on d5.
It is White to move on move 35, with 30 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 3. Files fully open (no pawns of either colour): c, d, h — natural highways for the rooks and queen. Half-open for White: e.
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
35. Qxb7+ Ke6 36. Qxe4+
为何奏效
- 好棋！后到b7保持压力（+7.4）。
- 好棋！后到e4保持压力（+7.5）。
- 你赢得一子——后。
- 若改走Ke6，则Qxe4+，你赢得后。
Move by move
- 35. Qxb7+ — 后 to b7 (capture) with check
- Ke6 — 王 to e6
- 36. Qxe4+ — 后 to e4 (capture) with check
本题的题型
串击
线路攻击逼走价值高的子，暴露出它身后的目标。
串击是反过来的牵制：贵重的棋子站在前面，便宜的躲在它身后。大子被迫让开——你就吃掉躲在它影子里的那个。搜寻与另一枚己方棋子同线（直线、横线或斜线）的敌方国王或后。最凶狠的版本带将军：国王一让开，它身后的车就没命了。
唯一着法
其他任何一步都会输——找到唯一撑得住的那一步。
唯一着法：除了独一无二的那步棋，其余全输的局面。这里不能「顺手」下棋：把原则上不同的防守都过一遍——逃跑、垫挡、兑换、反击——再淘汰被驳倒的。这类题目的标志：显而易见的着法很快就输，而正解常常看起来古怪。先弄清威胁你的究竟是什么——那步唯一的防守自会现身。
连将追击
步步将军——把王一路追到必败之地。
连将追击：你的每一步都是将军，对手连一秒钟都腾不出来实施自己的计划。国王被赶着满盘跑，直到丢子或撞上致命一击。这类变化最容易计算：每次将军，王只有寥寥几种应法——全部枚举即可。养成习惯：任何尖锐局面的计算都从将军开始，它们是棋盘上最强制的着法。
来源
源自 Lichess 题库（CC0）。
经 Stockfish 深度 20+ 验证。
解法强制性已确认（verified）。
题包 011
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