困住象（c7）
li-04779战术主题
困子：对方棋子无处可逃——抓住它。
难度1580 ShuffleRating——俱乐部棋手水平。
白方走棋——找出最佳续着
How to recognize this tactic
A trapped piece has no safe square. Spot an enemy piece that has wandered offside or been hemmed in, then play the move that takes away its last escape and wins it — often a quiet pawn push or a covering minor piece.
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 d1, 车 a1 f1, 象 e2 f4, 马 b5, 兵 a2 b2 c2 f2 g2 h2 d4。
黑方：王 g8, 后 b6, 车 a8 f8, 象 c8, 马 c6 f6, 兵 d5 a6 e6 h6 b7 f7 g7。
棋盘上有14枚白棋和14枚黑棋；该题局面出现在第13回合之后。
The position in numbers
Material is level — 35 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 White to move on move 13, with 40 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 7 pawns, Black 7. No file is fully open, so the heavy pieces have to be pried in. Half-open for White: e.
White hold the bishop pair, an edge in open lines. 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
13. Bc7 Qxb5 14. Bxb5
为何奏效
- 好棋！象到c7保持压力（+3.7）。
- 好棋！象到b5保持压力（+3.8）。
- 你赢得一子——后。
- 若改走Qxb5，则Bxb5，你赢得后。
Move by move
- 13. Bc7 — 象 to c7
- Qxb5 — 后 to b5 (capture)
- 14. Bxb5 — 象 to b5 (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 011
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