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Day 765: 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 f1Shuffle Rating 1630Analysis
White to move — find the best continuation
2. Mate in 3: queen to c5Shuffle Rating 1630Analysis
White to move — find the best continuation
3. Mate in 3: bishop to f5 (e4)Shuffle Rating 1630Analysis
White to move — find the best continuation
4. Mate in 3: knight to c6 (a5)Shuffle Rating 1630Analysis
White to move — find the best continuation
5. Mate in 3: queen to e6 (f5·2)Shuffle Rating 1630Analysis
White to move — find the best continuation
6. Mate in 3: rook to g7 (g1)Shuffle Rating 1630Analysis
White to move — find the best continuation
7. Mate in 3: rook to d8 (d3·2)Shuffle Rating 1630Analysis
White to move — find the best continuation
8. Mate in 3: bishop to f5 (d3)Shuffle Rating 1630Analysis
White to move — find the best continuation
9. Mate in 3: bishop to f6 (a1·2)Shuffle Rating 1630Analysis
White to move — find the best continuation
10. Mate in 3: queen to g7 (d4)Shuffle Rating 1630Analysis
White to move — find the best continuation

Core set

11. Attack on the uncastled king: queen to f3 (f2·3)Shuffle Rating 1650Analysis
White to move — find the best continuation
12. Attack on the uncastled king: queen to h7 (b1·4)Shuffle Rating 1650Analysis
White to move — find the best continuation
13. Attack on the uncastled king: rook to e4 (e2)Shuffle Rating 1700Analysis
White to move — find the best continuation
14. Attack on the uncastled king: rook to h1 (g1·20)Shuffle Rating 1750Analysis
White to move — find the best continuation
15. Attack on the uncastled king: queen to c3 (e1·4)Shuffle Rating 1750Analysis
White to move — find the best continuation
16. Winning blow: knight to d6 (c4·13)Shuffle Rating 1650Analysis
White to move — find the best continuation
17. Mate in 2: bishop to c3 (d4·2)Shuffle Rating 1688Analysis
Black to move — find the best continuation
18. Winning blow: queen to b7 (a7·7)Shuffle Rating 1650Analysis
White to move — find the best continuation
19. Mate in 2: bishop to f4 (d2)Shuffle Rating 1690Analysis
Black to move — find the best continuation
20. Winning blow: rook to c7 (c1·21)Shuffle Rating 1650Analysis
White to move — find the best continuation
21. Mate in 2: bishop to d1 (h5)Shuffle Rating 1706Analysis
Black to move — find the best continuation
22. Attack on the uncastled king: queen to h8 (h1·2)Shuffle Rating 1650Analysis
White to move — find the best continuation
23. Mate in 2: queen to d8 (d7·7)Shuffle Rating 1706Analysis
White to move — find the best continuation
24. Winning blow: queen to c8 (a8·4)Shuffle Rating 1650Analysis
White to move — find the best continuation
25. Winning blow: queen to f7 (f4·7)Shuffle Rating 1650Analysis
White to move — find the best continuation

Challenge

26. Skewer: rook to d2 (g2)Shuffle Rating 1839Analysis
Black to move — find the best continuation
27. Winning blow: pawn to h8 (g7·2)Shuffle Rating 1870Analysis
White to move — find the best continuation
28. Deflection: pawn to a5 (a4)Shuffle Rating 1926Analysis
White to move — find the best continuation

Review

29. Winning blow: queen to g4 (f5)Shuffle Rating 1790Analysis
White to move — find the best continuation
30. Attack on the uncastled king: rook to e3 (g3·4)Shuffle Rating 1760Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 766 →