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Day 928: Counter-strike

Lesson of the day

The counter-strike: instead of defending against the threat, you answer with a bigger threat of your own. While your opponent grabs a pawn, you deliver mate — the arithmetic favors you. Look for a counter when direct defenses fail: do you have a check, an attack on the queen, a mating threat? The beginner's error is meeting every threat with a reflexive defense without checking the counterattacking resources first.

Warm-up

1. Winning blow: queen to f4 (d6)Shuffle Rating 1870Analysis
White to move — find the best continuation
2. Winning blow: knight to e7 (f5·30)Shuffle Rating 1870Analysis
White to move — find the best continuation
3. Winning blow: queen to e3 (d4·3)Shuffle Rating 1870Analysis
White to move — find the best continuation
4. Winning blow: queen to e4 (d5·2)Shuffle Rating 1870Analysis
White to move — find the best continuation
5. Winning blow: queen to d6 (d7·7)Shuffle Rating 1870Analysis
White to move — find the best continuation
6. Winning blow: rook to e7 (e1·28)Shuffle Rating 1870Analysis
White to move — find the best continuation
7. Winning blow: knight to b5 (c3·25)Shuffle Rating 1870Analysis
White to move — find the best continuation
8. Winning blow: pawn to c6 (d5·12)Shuffle Rating 1870Analysis
White to move — find the best continuation
9. Winning blow: rook to a7 (a1·10)Shuffle Rating 1870Analysis
White to move — find the best continuation
10. Winning blow: pawn to e6 (d5·26)Shuffle Rating 1870Analysis
White to move — find the best continuation

Core set

11. Winning blow: bishop to f6 (c3·7)Shuffle Rating 1930Analysis
White to move — find the best continuation
12. Winning blow: queen to a8 (a6·8)Shuffle Rating 1930Analysis
White to move — find the best continuation
13. Winning blow: rook to a5 (d5)Shuffle Rating 2010Analysis
White to move — find the best continuation
14. Winning blow: knight to b7 (c5·8)Shuffle Rating 2010Analysis
White to move — find the best continuation
15. Winning blow: queen to e4 (d3·3)Shuffle Rating 2010Analysis
White to move — find the best continuation
16. Winning blow: queen to e4 (b1·5)Shuffle Rating 2060Analysis
White to move — find the best continuation
17. Winning blow: king to c2 (d1·21)Shuffle Rating 2060Analysis
White to move — find the best continuation
18. Winning blow: queen to c7 (a5·6)Shuffle Rating 2060Analysis
White to move — find the best continuation
19. Winning blow: queen to f3 (f2·7)Shuffle Rating 2060Analysis
White to move — find the best continuation
20. Winning blow: rook to e2 (d2·3)Shuffle Rating 2060Analysis
White to move — find the best continuation
21. Winning blow: rook to f7 (f5·3)Shuffle Rating 2060Analysis
White to move — find the best continuation
22. Winning blow: rook to g7 (g6·7)Shuffle Rating 2060Analysis
White to move — find the best continuation
23. Winning blow: queen to g2 (g1·2)Shuffle Rating 2060Analysis
White to move — find the best continuation
24. Mate in 3: rook to d8 (d1·11)Shuffle Rating 2065Analysis
White to move — find the best continuation
25. Winning blow: queen to b7 (e4·7)Shuffle Rating 2060Analysis
White to move — find the best continuation

Challenge

26. Mate in 2: pawn to g6 (g5·4)Shuffle Rating 2113Analysis
White to move — find the best continuation
27. Rescue the pawn to c1Shuffle Rating 2208Analysis
Black to move — find the best continuation
28. Rescue the pawn to b5Shuffle Rating 2293Analysis
Black to move — find the best continuation

Review

29. Winning blow: rook to h1 (c1)Shuffle Rating 2060Analysis
White to move — find the best continuation
30. Chess960 tactic on d7 (c7)Shuffle Rating 2120Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 929 →