闪击:象到h7 (d3·9)
li-0Ll81命名标签 (格·N)战术主题
闪击:一子闪开,另一子的攻击随之而来。
难度1822 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
A discovered attack fires when one piece steps aside and unmasks the piece behind it. Look for your own units that block a rook, bishop or queen: moving the front piece — ideally with a threat of its own — springs two attacks in one move.
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 g3, 车 a1 e1, 象 d3 g5, 兵 a2 f2 g2 h2。
黑方:王 g8, 后 c3, 车 a8 f8, 象 c8, 马 e5 f6, 兵 a6 e6 b7 d7 g7 h7。
棋盘上有10枚白棋和13枚黑棋;该题局面出现在第18回合之后。
The position in numbers
Black are ahead by 5 points of material (29 against 34; 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 g8.
It is White to move on move 18, with 44 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 6. Files fully open (no pawns of either colour): c — natural highways for the rooks and queen. Half-open for White: b, d, e.
White hold the bishop pair, an edge in open lines. The White king has 2 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
18. Bxh7+ Nxh7 19. Qxc3 Nf3+ 20. gxf3
为何奏效
- 好棋!象到h7保持压力(+2.8)。
- 好棋!后到c3保持压力(+2.9)。
- 好棋!兵到f3保持压力(+3.0)。
- 你赢得一子——后。
- 若改走Nxh7,则Qxc3,你赢得后。
Move by move
- 18. Bxh7+ — 象 to h7 (capture) with check
- Nxh7 — 马 to h7 (capture)
- 19. Qxc3 — 后 to c3 (capture)
- Nf3+ — 马 to f3 with check
- 20. gxf3 — 兵 to f3 (capture)
本题的题型
闪击
一个子闪开,让后面的子发起第二重攻击。
闪击就像拉开幕布:一个棋子离开直线,露出身后的远程棋子发动打击。妙处在于,走开的那个棋子自己还能攻击第二个目标——一步棋,两记重拳。检查你的叠置组合:马或兵的身后站着象或车,透过它们瞄准对方值钱的东西。前面的棋子要跳到最有攻击性的格子——没有第二威胁的闪击损失一半威力。
消除保护者
先吃掉守卫——再拿下它保护的目标。
消灭守卫是最直白的计划:先干掉看守,再拿走它守护的东西。与引离不同,守卫不是被支走的——而是被就地兑掉或消灭。盯着你想吃的目标问:谁在保护它?这个保护者能不能被划算地吃掉?要计算整串吃子的最终得失,而不是只看第一步——这笔交换必须以最后的战利品回本。
来源
源自 Lichess 题库(CC0)。
题包 013
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