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Day 682: Mate in 1

Lesson of the day

Mate in one: the combination is over, only the final precise shot remains. The method is simple — list every check you have and test the three escapes against each: king moves, blocks, and capturing the checker. If none of them works, it is mate. The classic blunder is falling in love with the first check you see and missing the one escape hatch.

Warm-up

1. Winning blow: queen to c8 (b7·2)Shuffle Rating 1280Analysis
White to move — find the best continuation
2. Winning blow: queen to e4 (b4)Shuffle Rating 1280Analysis
White to move — find the best continuation
3. Winning blow: knight to d5 (c3·16)Shuffle Rating 1280Analysis
White to move — find the best continuation
4. Winning blow: queen to c4 (c2·2)Shuffle Rating 1280Analysis
White to move — find the best continuation
5. Attack on the uncastled king: rook to d8 (d4·4)Shuffle Rating 1290Analysis
White to move — find the best continuation
6. Winning blow: queen to d8 (d4·2)Shuffle Rating 1290Analysis
White to move — find the best continuation
7. Winning blow: queen to d7 (e7)Shuffle Rating 1290Analysis
White to move — find the best continuation
8. Winning blow: queen to f6 (h8·5)Shuffle Rating 1290Analysis
White to move — find the best continuation
9. Winning blow: knight to c6 (d4·12)Shuffle Rating 1290Analysis
White to move — find the best continuation
10. Winning blow: queen to c6 (c3·6)Shuffle Rating 1290Analysis
White to move — find the best continuation

Core set

11. Mate in 1: queen to f4 (f8)Shuffle Rating 1635Analysis
Black to move — find the best continuation
12. Mate in 1: rook to h7 (h4)Shuffle Rating 1650Analysis
White to move — find the best continuation
13. Mate in 1: rook to h1 (h2·2)Shuffle Rating 1667Analysis
Black to move — find the best continuation
14. Mate in 1: queen to h7 (c2·7)Shuffle Rating 1668Analysis
White to move — find the best continuation
15. Mate in 1: queen to d4 (a1)Shuffle Rating 1682Analysis
Black to move — find the best continuation
16. Attack on the uncastled king: bishop to e7 (a3·2)Shuffle Rating 1560Analysis
White to move — find the best continuation
17. Winning blow: rook to c5 (a5)Shuffle Rating 1560Analysis
White to move — find the best continuation
18. Winning blow: knight to e5 (d7)Shuffle Rating 1560Analysis
White to move — find the best continuation
19. Attack on the uncastled king: queen to b3 (e3)Shuffle Rating 1560Analysis
White to move — find the best continuation
20. Winning blow: rook to d1 (h1·6)Shuffle Rating 1560Analysis
White to move — find the best continuation
21. Winning blow: knight to f6 (h7·4)Shuffle Rating 1560Analysis
White to move — find the best continuation
22. Winning blow: knight to d5 (f4·8)Shuffle Rating 1560Analysis
White to move — find the best continuation
23. Winning blow: knight to g6 (e5·10)Shuffle Rating 1560Analysis
White to move — find the best continuation
24. Winning blow: knight to g6 (f4·10)Shuffle Rating 1560Analysis
White to move — find the best continuation
25. Winning blow: knight to f5 (d4·9)Shuffle Rating 1560Analysis
White to move — find the best continuation

Challenge

26. Castling-960 to the rescue on c8 (g8·4)Shuffle Rating 1690Analysis
Black to move — find the best continuation
27. Winning blow: rook to e6 (e1·24)Shuffle Rating 1750Analysis
White to move — find the best continuation
28. Winning blow: rook to f8 (f6·5)Shuffle Rating 1790Analysis
White to move — find the best continuation

Review

29. Winning blow: knight to f6 (d5·10)Shuffle Rating 1420Analysis
White to move — find the best continuation
30. Mate in 3: queen to a5 (a4·2)Shuffle Rating 1630Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 683 →