引离：车到d4 (d6)
li-0B2Dr命名标签 (格·N)战术主题
引离：迫使防守的棋子离开岗位。
难度2436 ShuffleRating——专家水平——很少有人一次解出。
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.
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 g2, 车 d6, 兵 b2 c3。
黑方：王 f4, 车 f3, 兵 e3 g3 b5 c6。
棋盘上有4枚白棋和6枚黑棋；该题局面出现在第56回合之后。
The position in numbers
Black are ahead by 2 points of material (7 against 9; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on g2, the black king on f4.
It is White to move on move 56, with 18 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 2 pawns, Black 4. Files fully open (no pawns of either colour): a, d, f, h — natural highways for the rooks and queen. Half-open for White: e, g.
The White king has 3 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
56. Rd4+ Kf5 57. Kxf3
为何奏效
- 好棋！车到d4保持压力（+6.2）。
- 好棋！王到f3保持压力（+6.5）。
- 你赢得一子——车。
- 若改走Kf5，则Kxf3，你赢得车。
Move by move
- 56. Rd4+ — 车 to d4 with check
- Kf5 — 王 to f5
- 57. Kxf3 — 王 to f3 (capture)
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。
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）。
题包 015
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