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Day 721: 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. Attack on the uncastled king: pawn to b5 (c4·33)Shuffle Rating 1200Analysis
White to move — find the best continuation
2. Winning blow: rook to a6 (a1·3)Shuffle Rating 1200Analysis
White to move — find the best continuation
3. Winning blow: rook to f8 (f1·10)Shuffle Rating 1200Analysis
White to move — find the best continuation
4. Winning blow: rook to a8 (e8·3)Shuffle Rating 1200Analysis
White to move — find the best continuation
5. Attack on the uncastled king: rook to e7 (e1·3)Shuffle Rating 1200Analysis
White to move — find the best continuation
6. Winning blow: bishop to f8 (h6)Shuffle Rating 1200Analysis
White to move — find the best continuation
7. Winning blow: rook to e8 (e7·4)Shuffle Rating 1200Analysis
White to move — find the best continuation
8. Winning blow: queen to d6 (e7·4)Shuffle Rating 1200Analysis
White to move — find the best continuation
9. Winning blow: rook to c1 (h1·4)Shuffle Rating 1200Analysis
White to move — find the best continuation
10. Winning blow: queen to f8 (f7)Shuffle Rating 1200Analysis
White to move — find the best continuation

Core set

11. Winning blow: pawn to e4 (d3·15)Shuffle Rating 1420Analysis
White to move — find the best continuation
12. Winning blow: knight to h6 (f5·11)Shuffle Rating 1510Analysis
White to move — find the best continuation
13. Winning blow: bishop to f6 (g5·5)Shuffle Rating 1510Analysis
White to move — find the best continuation
14. Winning blow: rook to g7 (g1·8)Shuffle Rating 1510Analysis
White to move — find the best continuation
15. Attack on the uncastled king: queen to c8 (b7·8)Shuffle Rating 1510Analysis
White to move — find the best continuation
16. Winning blow: rook to d7 (e7·5)Shuffle Rating 1430Analysis
White to move — find the best continuation
17. Attack on the uncastled king: rook to b8 (b1·21)Shuffle Rating 1430Analysis
White to move — find the best continuation
18. Winning blow: queen to a7 (c5·6)Shuffle Rating 1430Analysis
White to move — find the best continuation
19. Winning blow: knight to g6 (e5·9)Shuffle Rating 1430Analysis
White to move — find the best continuation
20. Winning blow: rook to d6 (e6·2)Shuffle Rating 1430Analysis
White to move — find the best continuation
21. Winning blow: queen to d7 (d2·8)Shuffle Rating 1430Analysis
White to move — find the best continuation
22. Winning blow: queen to g7 (h7·7)Shuffle Rating 1430Analysis
White to move — find the best continuation
23. Winning blow: rook to g7 (e7·3)Shuffle Rating 1430Analysis
White to move — find the best continuation
24. Winning blow: queen to b6 (b5·5)Shuffle Rating 1430Analysis
White to move — find the best continuation
25. Winning blow: queen to d6 (g3·4)Shuffle Rating 1430Analysis
White to move — find the best continuation

Challenge

26. Attack on the uncastled king: pawn to d5 (d4·5)Shuffle Rating 1610Analysis
White to move — find the best continuation
27. Mate in 3: knight to g5 (e6·3)Shuffle Rating 1630Analysis
White to move — find the best continuation
28. Mate in 3: rook to c7 (c5)Shuffle Rating 1630Analysis
White to move — find the best continuation

Review

29. Winning blow: rook to c7 (c8·3)Shuffle Rating 1280Analysis
White to move — find the best continuation
30. Winning blow: rook to e1 (f1·7)Shuffle Rating 1280Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

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