牵制：兵到c6
li-05fac战术主题
牵制：棋子一动，身后更有价值的目标就会暴露。
难度1664 ShuffleRating——适合进阶战术爱好者。
黑方走棋——找出最佳续着
How to recognize this tactic
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 g1, 后 b7, 车 d1 f1, 象 e3 c4, 马 c3, 兵 a2 b2 f2 g2 e5。
黑方：王 g8, 后 g4, 车 a8 f8, 象 h3, 马 f6 b8, 兵 h6 a7 c7 f7 g7。
棋盘上有12枚白棋和12枚黑棋；该题局面出现在第15回合之后。
The position in numbers
Material is level — 33 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 Black to move on move 15, with 39 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): d — natural highways for the rooks and queen. Half-open for Black: b, e.
White hold the bishop pair, an edge in open lines. The Black 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
15... c6 16. Qxf7+ Rxf7
为何奏效
- 好棋！兵到c6保持压力（+6.5）。
- 好棋！车到f7保持压力（#6）。
- 你赢得一子——后。
- 若改走Qxf7+，则Rxf7，你赢得后。
Move by move
- 15… c6 — 兵 to c6
- 16. Qxf7+ — 后 to f7 (capture) with check
- Rxf7 — 车 to f7 (capture)
本题的题型
静着
既不将军也不吃子——但正是这步不起眼的棋决定了胜负。
静着：既不将军也不吃子，却恰恰是它决定胜负——制造无法招架的威胁，或夺走国王最后的格子。这是最难的一类着法：眼睛总在搜寻轰鸣的重击，赢棋的却是一次低调的挪动。线索：所有强制尝试都撞上防守——那就找那步单纯加强威胁或抢占格子的棋。训练自己发问：如果不吃不将，只是静静地加强，会怎样？
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 013
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