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Day 838: 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. Mate in 3: rook to f7 (f1·2)Shuffle Rating 1630Analysis
White to move — find the best continuation
2. Mate in 3: queen to d4 (d2)Shuffle Rating 1630Analysis
White to move — find the best continuation
3. Mate in 3: queen to d8 (c7)Shuffle Rating 1630Analysis
White to move — find the best continuation
4. Mate in 3: queen to b5 (d3)Shuffle Rating 1630Analysis
White to move — find the best continuation
5. Mate in 3: knight to d7 (b6)Shuffle Rating 1630Analysis
White to move — find the best continuation
6. Mate in 3: queen to e8 (e5·2)Shuffle Rating 1630Analysis
White to move — find the best continuation
7. Mate in 3: bishop to d5 (a2·2)Shuffle Rating 1630Analysis
White to move — find the best continuation
8. Mate in 3: knight to e6 (g5·6)Shuffle Rating 1630Analysis
White to move — find the best continuation
9. Mate in 3: queen to g6 (f6)Shuffle Rating 1630Analysis
White to move — find the best continuation
10. Mate in 3: pawn to d4 (c3)Shuffle Rating 1630Analysis
White to move — find the best continuation

Core set

11. Mate in 1: queen to d5 (e5)Shuffle Rating 1914Analysis
White to move — find the best continuation
12. Mate in 1: knight to g5Shuffle Rating 1944Analysis
Black to move — find the best continuation
13. Mate in 1: pin on g2 (f3)Shuffle Rating 1984Analysis
Black to move — find the best continuation
14. Mate in 1: queen to f1 (a1)Shuffle Rating 2020Analysis
Black to move — find the best continuation
15. Mate in 1: queen to g4 (e2)Shuffle Rating 2021Analysis
Black to move — find the best continuation
16. Fork: knight to e4 (c3·2)Shuffle Rating 1868Analysis
White to move — find the best continuation
17. Winning blow: pawn to f6 (g5·18)Shuffle Rating 1870Analysis
White to move — find the best continuation
18. Winning blow: pawn to d5 (c4·19)Shuffle Rating 1870Analysis
White to move — find the best continuation
19. Winning blow: queen to e4 (g2)Shuffle Rating 1870Analysis
White to move — find the best continuation
20. Winning blow: pawn to b7 (a6·8)Shuffle Rating 1870Analysis
White to move — find the best continuation
21. Winning blow: bishop to g6 (e8)Shuffle Rating 1870Analysis
White to move — find the best continuation
22. Winning blow: bishop to d5 (a2·4)Shuffle Rating 1870Analysis
White to move — find the best continuation
23. Winning blow: pawn to b3 (c2·10)Shuffle Rating 1870Analysis
White to move — find the best continuation
24. Winning blow: rook to h6 (h3·2)Shuffle Rating 1870Analysis
White to move — find the best continuation
25. Winning blow: knight to e6 (d4·24)Shuffle Rating 1870Analysis
White to move — find the best continuation

Challenge

26. Mate in 2: bishop to f7 (e8·2)Shuffle Rating 1876Analysis
Black to move — find the best continuation
27. Deflection: queen to c5 (e7)Shuffle Rating 2040Analysis
Black to move — find the best continuation
28. Discovered attack: bishop to h2 (d6·10)Shuffle Rating 2074Analysis
Black to move — find the best continuation

Review

29. Mate in 3: queen to f8 (h6)Shuffle Rating 1876Analysis
White to move — find the best continuation
30. Attack on the uncastled king: knight to a7 (b5·10)Shuffle Rating 1980Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 839 →