Open in the app

The 1000-day course

Day 525: Discovered attack

Target rating: 1128

Lesson of the day

A discovered attack works like a curtain: one piece steps off the line and unveils the long-range piece behind it. The beauty is that the moving piece can create a second threat of its own — two attacks in one move. Look for your stacked pairs: a bishop or rook behind a knight or pawn, aimed through them at something valuable. Send the front piece to the most aggressive square — a discovery without a second threat wastes half its power.

Warm-up

1. Attack on the uncastled king: queen to h4 (f2·9)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
2. Winning blow: pawn to e5 (d4·17)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
3. Attack on the uncastled king: bishop to d2 (e3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
4. Attack on the uncastled king: pawn to b5 (c4·31)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
5. Attack on the uncastled king: knight to e3 (d5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
6. Winning blow: king to e2 (f1·6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
7. Winning blow: king to c1 (b2·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
8. Winning blow: king to e2 (f1·7)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
9. Winning blow: king to d1 (e2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
10. Winning blow: king to c2 (d1·5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Core set

11. Attack on the uncastled king: pawn to d6 (d5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
12. Discovered attack: knight to f6 (d5·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
13. Discovered attack: knight to f3 (e5·2)Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
14. Winning blow: knight to e8 (f6·5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
15. Attack on the uncastled king: rook to e3 (g3·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
16. Winning blow: queen to c4 (d5·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
17. Attack on the uncastled king: bishop to e5 (h2·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
18. Attack on the uncastled king: rook to c8 (b8·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
19. Winning blow: queen to c6 (c5·5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
20. Attack on the uncastled king: bishop to f6 (g5·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
21. Winning blow: pawn to f7 (g6·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
22. Attack on the uncastled king: rook to g3 (h3·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
23. Winning blow: queen to d3 (c3·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
24. Winning blow: bishop to b1 (a2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
25. Winning blow: bishop to e4 (h1·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Challenge

26. Winning blow: rook to f2 (b2·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
27. Discovered attack: knight to g4 (f6)Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
28. Attack on the uncastled king: queen to f6 (a1·9)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Review

29. Attack on the uncastled king: knight to b5 (c3·14)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
30. Winning blow: queen to c4 (d3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 526 →