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Day 840: 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: queen to c8 (g8)Shuffle Rating 1630Analysis
White to move — find the best continuation
2. Mate in 3: queen to g8 (h7·2)Shuffle Rating 1630Analysis
White to move — find the best continuation
3. Attack on the uncastled king: queen to g8 (b3·4)Shuffle Rating 1630Analysis
White to move — find the best continuation
4. Mate in 3: queen to f6 (a1·2)Shuffle Rating 1630Analysis
White to move — find the best continuation
5. Mate in 3: bishop to c6 (f3)Shuffle Rating 1630Analysis
White to move — find the best continuation
6. Mate in 3: queen to c4 (b3)Shuffle Rating 1630Analysis
White to move — find the best continuation
7. Mate in 3: rook to g8 (h8)Shuffle Rating 1630Analysis
White to move — find the best continuation
8. Attack on the uncastled king: bishop to a6 (e2·7)Shuffle Rating 1630Analysis
White to move — find the best continuation
9. Mate in 3: queen to h8 (c8)Shuffle Rating 1630Analysis
White to move — find the best continuation
10. Mate in 3: queen to f6 (g5·3)Shuffle Rating 1630Analysis
White to move — find the best continuation

Core set

11. Attack on the uncastled king: queen to f5 (c2·3)Shuffle Rating 1870Analysis
White to move — find the best continuation
12. Attack on the uncastled king: rook to b7 (b2·2)Shuffle Rating 1870Analysis
White to move — find the best continuation
13. Attack on the uncastled king: knight to d5 (e3·23)Shuffle Rating 1870Analysis
White to move — find the best continuation
14. Attack on the uncastled king: rook to e6 (e3·4)Shuffle Rating 1870Analysis
White to move — find the best continuation
15. Attack on the uncastled king: bishop to g2 (h3)Shuffle Rating 1870Analysis
White to move — find the best continuation
16. Mate in 2: knight to h5 (g3)Shuffle Rating 1640Analysis
White to move — find the best continuation
17. Mate in 3: rook to f8 (f1·3)Shuffle Rating 1630Analysis
White to move — find the best continuation
18. Winning blow: bishop to d5 (e6·2)Shuffle Rating 1650Analysis
White to move — find the best continuation
19. Mate in 2: bishop to f6 (e5·4)Shuffle Rating 1630Analysis
White to move — find the best continuation
20. Mate in 3: pawn to b4Shuffle Rating 1630Analysis
White to move — find the best continuation
21. Mate in 3: pawn to b7 (a6·5)Shuffle Rating 1630Analysis
White to move — find the best continuation
22. Mate in 3: knight to e8 (c7)Shuffle Rating 1630Analysis
White to move — find the best continuation
23. Mate in 3: queen to c5 (c4·3)Shuffle Rating 1630Analysis
White to move — find the best continuation
24. Mate in 3: rook to a7 (a8·2)Shuffle Rating 1630Analysis
White to move — find the best continuation
25. Mate in 3: queen to f6 (f7·2)Shuffle Rating 1630Analysis
White to move — find the best continuation

Challenge

26. Fork: queen to f2 (e3)Shuffle Rating 1873Analysis
White to move — find the best continuation
27. Winning blow: rook to b1 (c1·13)Shuffle Rating 1890Analysis
White to move — find the best continuation
28. Discovered attack: knight to g4 (e5)Shuffle Rating 1908Analysis
Black to move — find the best continuation

Review

29. Mate in 3: rook to e8 (e1·7)Shuffle Rating 1630Analysis
White to move — find the best continuation
30. Mate in 3: bishop to e3 (c1)Shuffle Rating 1630Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

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