2步杀：引离，g4 (g2)
li-05dbs命名标签 (格·N)战术主题
引离：迫使防守的棋子离开岗位。
两步将杀：第一步制造无法化解的威胁，第二步完成将杀。
难度1129 ShuffleRating——俱乐部棋手水平。
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.
Mate in two usually opens with a forcing move — a check, a capture or an unstoppable threat — that strips the king of squares or defenders, so the follow-up mate becomes unavoidable. Look for the first move that leaves the opponent only losing replies.
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, 车 c6, 象 h4, 兵 f2 g2 h3。
黑方：王 h5, 车 d2, 象 d4, 马 g5, 兵 h6。
棋盘上有6枚白棋和5枚黑棋；该题局面出现在第58回合之后。
The position in numbers
Black are ahead by 1 points of material (11 against 12; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on g1, the black king on h5.
It is White to move on move 58, with 21 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 3 pawns, Black 1. Files fully open (no pawns of either colour): a, b, c, d, e — natural highways for the rooks and queen.
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
58. g4+ Kxh4 59. Rxh6#
为何奏效
- 好棋！兵到g4保持压力（#1）。
- 好棋！车到h6保持压力（#）。
- 该变着以2步强制将杀结束。
- 若改走Kxh4，则Rxh6#，即被将杀。
Move by move
- 58. g4+ — 兵 to g4 with check
- Kxh4 — 王 to h4 (capture)
- 59. Rxh6# — 车 to h6 (capture) and it is checkmate
本题的题型
两步杀
两步之内的强制将杀。
两步杀：你走一步，对方任意应一步，然后是致命一击。从最强制的首着开始：将军和弃子，把对手的选择压到最少。对他的每一种应法，你都必须备好将杀——所有回应都要检查，一个不漏。常见的失误是算清了漂亮的防守，却忘了那个平淡无奇的。
弃子攻击
舍弃子力，发动决定性的攻击。
弃子攻王：你有意送出子力，为的是掀开王城、发动决定性攻势。当你换来的是实实在在的资产——通向国王的开放线路、赢得的节奏、随时杀入的棋子——弃子才是正确的。识别特征：敌王掩体单薄，你的兵力对准他的老巢，而防守者远水难救近火。铁律是靠计算而不是靠指望：子力一旦送出，就再没有回头路。
突破
弃兵撕开兵链，让通路兵冲出去。
突破：一次兵的牺牲撕开对方兵链，制造出无法阻挡的通路兵。到兵与兵顶死的地方寻找它：常常是送掉两个兵，让第三个溜过去。核对方格：对方的王追不追得上新通路兵——追不上就大胆牺牲。错误做法是在敌王就站在旁边、能通吃一切时强行突破。
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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