引离：兵到c7
li-07eHq战术主题
引离：迫使防守的棋子离开岗位。
悬子：对方有棋子无人保护——吃掉它。
难度1485 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 hanging piece is one that is attacked and not defended, or defended too few times. Count attackers against defenders on each enemy unit; where attackers win, take it — often with an in-between move or a check to gain the extra tempo.
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 b4, 车 d5, 兵 f2 g2 h2 a4 e4 d6。
黑方：王 f6, 车 e6 c7, 兵 g4 e5 g5 h5 a6 b6。
棋盘上有8枚白棋和9枚黑棋；该题局面出现在第39回合之后。
The position in numbers
Black are ahead by 5 points of material (11 against 16; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on b4, the black king on f6.
It is White to move on move 39, with 18 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 6 pawns, Black 6. Files fully open (no pawns of either colour): c — natural highways for the rooks and queen. Half-open for White: b.
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
39. dxc7 Rc6 40. Rd6+ Rxd6 41. c8=Q
为何奏效
- 好棋！兵到c7保持压力（+5.9）。
- 好棋！车到d6保持压力（+5.9）。
- 好棋！兵到c8保持压力（+5.8）。
- 你赢得一子——车。
- 若改走Rc6，则Rd6+，你赢得车。
Move by move
- 39. dxc7 — 兵 to c7 (capture)
- Rc6 — 车 to c6
- 40. Rd6+ — 车 to d6 with check
- Rxd6 — 车 to d6 (capture)
- 41. c8=Q — 兵 to c8
本题的题型
升变
兵冲到底线升变为后——一锤定音。
升变：兵抵达底线变成后，整个局面的评估瞬间改写。在战术中，通路兵很少能白白走到底——通常要靠弃子为它开路。计算节奏：兵到升变格还差几步，防守方来得及拦截吗？还要盯住升变格本身——它必须在敌子够不着的地方，或能被你的组合强行夺下。
通路兵
通路兵已无人能挡——护送它冲到底线。
通路兵：前方和相邻两列都没有敌兵的兵——能拦住它的只有棋子。查一查谁能堵在它路上、谁的王能追上它——如果谁也不能，它就值一整个子。推进通路兵要有棋子支援，车要放在它身后。新手的错误是毫无支援地把兵直推到对方嘴边。
车残局
最常见的残局——一切取决于子力的活跃度。
车残局是实战中最常见的残局：盘上是车和兵。第一法则是积极性：站在通路兵身后的车，胜过消极守兵的车。正确计划的标志——你的车在攻击什么，而不是在看守什么。错误做法是把车锁死在护兵岗位上：常常宁可丢一兵，也要保住活跃的车和活跃的王。
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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