Day 904: Discovered attack
Target rating: 1903
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. Winning blow: rook to f6 (f1·15)Analysis
White to move — find the best continuation
2. Winning blow: pawn to d7 (e6·8)Analysis
White to move — find the best continuation
3. Winning blow: rook to f8 (f3·3)Analysis
White to move — find the best continuation
4. Winning blow: queen to f4 (g3·5)Analysis
White to move — find the best continuation
5. Winning blow: queen to a8 (b7·2)Analysis
White to move — find the best continuation
6. Winning blow: rook to b1 (f1·7)Analysis
White to move — find the best continuation
7. Winning blow: rook to f7 (f2·4)Analysis
White to move — find the best continuation
8. Winning blow: queen to c3 (c8)Analysis
White to move — find the best continuation
9. Winning blow: queen to e7 (e2·6)Analysis
White to move — find the best continuation
10. Winning blow: knight to d6 (f5·16)Analysis
White to move — find the best continuation
Core set
11. Winning blow: bishop to f6 (b2·9)Analysis
White to move — find the best continuation
12. Pin: king to c7Analysis
Black to move — find the best continuation
13. Pin: knight to g5Analysis
White to move — find the best continuation
14. Winning blow: bishop to g5 (c1·7)Analysis
White to move — find the best continuation
15. Winning blow: knight to d6 (b5·21)Analysis
White to move — find the best continuation
16. Mate in 3: king to d1 (c1)Analysis
White to move — find the best continuation
17. Mate in 3: queen to f6 (c3)Analysis
White to move — find the best continuation
18. Mate in 3: rook to b7 (b1·8)Analysis
White to move — find the best continuation
19. Mate in 3: queen to f1 (c1)Analysis
Black to move — find the best continuation
20. Winning blow: rook to e7 (e1·27)Analysis
White to move — find the best continuation
21. Winning blow: rook to d4 (d1·13)Analysis
White to move — find the best continuation
22. Winning blow: queen to b7 (d5·4)Analysis
White to move — find the best continuation
23. Winning blow: rook to e8 (e1·24)Analysis
White to move — find the best continuation
24. Winning blow: knight to a4 (b2)Analysis
White to move — find the best continuation
25. Attack on the uncastled king: knight to b7 (a5·30)Analysis
White to move — find the best continuation
Challenge
Review
Day complete — every puzzle solved. See you tomorrow!
Day 905 →