| Advanced Puzzle 4 |
White to play and win in 7 moves. Scroll down for the answer.

Answer
| 1 | Rc7+ | Kh8 1... Kf8 loses to 2. Rc8+ Rxc8; 3.bxc8/Q+ Kg7; 4.Qg8++ or 3...Ke7; 4. Bg5++ |
| 2 | Bh6 | a1/Q+ |
| 3 | Kg2 | Rg3+ ...Rg3+ is the only way to survive another move |
| 4 | hxg3 | Qh1+   ...Qh1+ is the only way to survive another move |
| 5 | Kxh1 | Rg8 |
| 6 | b8/Q | fxg4 Black can't do anything about the attack |
| 7 | Bg7++ Mate |
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