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Day 940: Uncastled king

Lesson of the day

Punishing the uncastled king: your opponent delayed castling, and now his king is stuck on its starting square under fire. In Chess960 this is deadlier than in classical chess — the king may start in the center or near the edge, and the familiar defensive setups simply do not apply. The signs: the victim still holds castling rights, and the files toward his king are half-open. Open lines before the king manages to hide.

Warm-up

1. Mate in 3: rook to f5 (f1·4)Shuffle Rating 1990Analysis
White to move — find the best continuation
2. Mate in 3: bishop to g7 (h8)Shuffle Rating 1990Analysis
White to move — find the best continuation
3. Mate in 3: knight to e4 (d2)Shuffle Rating 1990Analysis
White to move — find the best continuation
4. Winning blow: king to g2 (f2·9)Shuffle Rating 2060Analysis
White to move — find the best continuation
5. Mate in 3: rook to h8 (d8·2)Shuffle Rating 1990Analysis
White to move — find the best continuation
6. Winning blow: king to c3 (d2·10)Shuffle Rating 2060Analysis
White to move — find the best continuation
7. Mate in 3: queen to d6 (c7·2)Shuffle Rating 1995Analysis
White to move — find the best continuation
8. Fork: queen to h6Shuffle Rating 2089Analysis
White to move — find the best continuation
9. Winning blow: king to c2 (c1·16)Shuffle Rating 2060Analysis
White to move — find the best continuation
10. Winning blow: rook to g3 (e3·6)Shuffle Rating 2060Analysis
White to move — find the best continuation

Core set

11. Attack on the uncastled king: rook to b8 (b6·2)Shuffle Rating 2060Analysis
White to move — find the best continuation
12. Attack on the uncastled king: knight to e5 (d3·24)Shuffle Rating 2060Analysis
White to move — find the best continuation
13. Attack on the uncastled king: bishop to b4 (e1·13)Shuffle Rating 2060Analysis
White to move — find the best continuation
14. Attack on the uncastled king: queen to h7 (h5·6)Shuffle Rating 2060Analysis
White to move — find the best continuation
15. Attack on the uncastled king: knight to d5 (e3·24)Shuffle Rating 2060Analysis
White to move — find the best continuation
16. Mate in 2: fork on f1Shuffle Rating 2009Analysis
Black to move — find the best continuation
17. Fork: knight to c6 (d4)Shuffle Rating 2092Analysis
White to move — find the best continuation
18. Fork: queen to b4 (b2)Shuffle Rating 2096Analysis
White to move — find the best continuation
19. Fork: knight to c6 (e5·3)Shuffle Rating 2097Analysis
White to move — find the best continuation
20. Winning blow: king to b1 (c1·44)Shuffle Rating 2060Analysis
White to move — find the best continuation
21. Mate in 2: queen to f2 (f5)Shuffle Rating 2018Analysis
Black to move — find the best continuation
22. Winning blow: queen to d7 (a7·3)Shuffle Rating 2100Analysis
White to move — find the best continuation
23. Attack on the uncastled king: bishop to g6 (b1·17)Shuffle Rating 2100Analysis
White to move — find the best continuation
24. Winning blow: rook to h5 (f5·2)Shuffle Rating 2100Analysis
White to move — find the best continuation
25. Winning blow: rook to a7 (a1·12)Shuffle Rating 2100Analysis
White to move — find the best continuation

Challenge

26. Mate in 3: double attack on f8Shuffle Rating 2112Analysis
White to move — find the best continuation
27. Chess960 tactic on d4 (f5)Shuffle Rating 2250Analysis
White to move — find the best continuation
28. Fork: knight to f5 (d4·2)Shuffle Rating 2291Analysis
Black to move — find the best continuation

Review

29. Mate in 2: discovered attack on g4Shuffle Rating 2050Analysis
Black to move — find the best continuation
30. Chess960 tactic on c8 (d7)Shuffle Rating 2120Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

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