牵制：象到h6 (g7)
li-052Vz命名标签 (格·N)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1187 ShuffleRating——俱乐部棋手水平。
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 c1, 后 e3, 车 d1, 马 c3, 兵 b2 c2 f2 g2 h3 a4 e4。
黑方：王 b7, 后 e7, 车 h8, 象 g7, 兵 e5 h5 a6 b6 e6 g6 c7。
棋盘上有11枚白棋和11枚黑棋；该题局面出现在第22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 c1, the black king on b7.
It is Black to move on move 22, with 35 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 7 pawns, Black 7. Files fully open (no pawns of either colour): d — natural highways for the rooks and queen. Half-open for Black: f.
The Black king has 5 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
22... Bh6 23. Qxh6 Rxh6
为何奏效
- 好棋！象到h6保持压力（+5.4）。
- 好棋！车到h6保持压力（+5.5）。
- 你赢得一子——后。
- 若改走Qxh6，则Rxh6，你赢得后。
Move by move
- 22… Bh6 — 象 to h6
- 23. Qxh6 — 后 to h6 (capture)
- Rxh6 — 车 to h6 (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 007
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