吃掉无保护的王(h7) (g8)
li-0AL2v命名标签 (格·N)战术主题
悬子:对方有棋子无人保护——吃掉它。
解救棋子:你的棋子正受攻击——找到最佳解救方法。
难度1929 ShuffleRating——适合进阶战术爱好者。
黑方走棋——找出最佳续着
How to recognize this tactic
A hanging piece is one that is attacked and not defended, or defended too few times. Count attackers against defenders on each enemy unit; where attackers win, take it — often with an in-between move or a check to gain the extra tempo.
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 d2, 车 c1 h7, 象 d4, 兵 f2 g2 a3 e3 c5 g7。
黑方:王 g8, 车 b3 c8, 象 d3, 兵 a4 e4 f5。
棋盘上有10枚白棋和7枚黑棋;该题局面出现在第32回合之后。
The position in numbers
White are ahead by 3 points of material (19 against 16; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on d2, the black king on g8.
It is Black to move on move 32, with 27 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 6 pawns, Black 3. Files fully open (no pawns of either colour): b, d, h — natural highways for the rooks and queen. Half-open for Black: c, g.
The Black 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
32... Kxh7 33. Rh1+ Kg6 34. Rh8 Rbb8
为何奏效
- 好棋!王到h7保持压力(+1.3)。
- 好棋!王到g6保持压力(+1.9)。
- 好棋!车到b8保持压力(+1.7)。
- 你赢得一子——车。
- 若改走Rh1+,则Kg6,你赢得车。
Move by move
- 32… Kxh7 — 王 to h7 (capture)
- 33. Rh1+ — 车 to h1 with check
- Kg6 — 王 to g6
- 34. Rh8 — 车 to h8
- Rbb8 — 车 to b8
本题的题型
透视攻击
远程子力隔着同一线上的敌子发挥威力。
透视(X射线):远程棋子的力量能穿透同一条线上的敌方棋子发挥作用。那枚棋子身后的格子看起来安全或有保护——整套战术正是利用这个错觉。检查你的车、象和后:它们的线路上,是否有关键格或猎物躲在敌子背后?计算某格上的吃子交换时,别忘了透视参战者——线路一打开,它们立即加入战斗。
王的行军
残局中王就是战斗力——大胆带它上前线。
王的进军:在残局里王是战斗单位,取胜的常常正是他的向前远征。当后已兑掉、将军不足为惧时,就该进军了:王攻击兵、护送通路兵、抢占格子。主题特征——连续好几步都是王在走。按方格法则提前算好路线,别让对方的王抢到对王。
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
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