解救兵到b4
li-0I9fx战术主题
解救棋子：你的棋子正受攻击——找到最佳解救方法。
难度1893 ShuffleRating——适合进阶战术爱好者。
白方走棋——找出最佳续着
How to recognize this tactic
Here the task is defensive: one of your pieces is under attack and must be rescued without losing more. Look for a move that saves it with tempo — a counter-check, an equal counter-attack or an interposition — rather than a passive retreat.
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 b2, 后 d3, 车 a1 h1, 马 e2, 兵 c3 f3 d4 h4 g5。
黑方：王 g8, 后 a4, 车 b4 c8, 马 f6, 兵 d5 e6 h6 b7 f7 g7。
棋盘上有10枚白棋和11枚黑棋；该题局面出现在第24回合之后。
The position in numbers
Black are ahead by 1 points of material (27 against 28; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on b2, the black king on g8.
It is White to move on move 24, with 2 legal replies to weigh — only the line that keeps the advantage solves the puzzle. White are in check right now, so every reply must answer the check.
White keeps 5 pawns, Black 6. Files fully open (no pawns of either colour): a — natural highways for the rooks and queen. Half-open for White: b, 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
24. cxb4 Qxb4+ 25. Qb3 Qd2+ 26. Kb1
为何奏效
- 好棋！兵到b4保持压力（+3.5）。
- 好棋！后到b3保持压力（+3.9）。
- 好棋！王到b1保持压力（+3.8）。
- 你赢得一子——车。
- 若改走Qxb4+，则Qb3，你赢得车。
Move by move
- 24. cxb4 — 兵 to b4 (capture)
- Qxb4+ — 后 to b4 (capture) with check
- 25. Qb3 — 后 to b3
- Qd2+ — 后 to d2 with check
- 26. Kb1 — 王 to b1
本题的题型
制胜一击
找到那记强制得子的妙击。
制胜一击：强制赢得子力，却不归入任何单一的教科书主题。通用的战术配方在此适用：找出无保护的棋子、站位别扭的国王、超载的线路。按力度顺序枚举强制着法：将军、吃子、威胁——绝大多数组合正是从其中之一开始。不要凭感觉评估：把具体变化算到结果确凿无疑为止。
救子
被攻击的子不但能救，还能顺手赚一笔。
救子：你的棋子被攻击，任务是别白白送掉它。办法有几种：带节奏地撤退、加以保护、垫挡攻击，或制造更凶的对攻威胁。机械后撤之前，先找带反击的撤退——既救了子又赚了时间。典型错误是惊慌失措逃到随便一个格子，结果棋子又被抓住。
来源
源自 Lichess 题库（CC0）。
题包 014
相似题目
在浏览器或 Android 应用中。无需安装 · 免费，无广告