Day 598: Discovered check
Target rating: 1368
Lesson of the day
With a discovered check the moving piece unmasks a check from the piece standing behind it. While the king deals with the check, the piece that moved grabs whatever it likes, free of charge. Look for your long-range piece on a line with the enemy king, with exactly one of your own pieces in between. The rule: among all the ways to step aside, pick the one that captures or attacks the most expensive loot.
Warm-up
1. Winning blow: rook to e6 (e1·19)Analysis
White to move — find the best continuation
2. Winning blow: pawn to b5 (c4·8)Analysis
White to move — find the best continuation
3. Winning blow: pawn to c3 (b2·17)Analysis
White to move — find the best continuation
4. Winning blow: queen to c5 (b4·3)Analysis
White to move — find the best continuation
5. Winning blow: bishop to c6 (e4·10)Analysis
White to move — find the best continuation
6. Winning blow: knight to d4 (f3·7)Analysis
White to move — find the best continuation
7. Attack on the uncastled king: pawn to g4 (f3·27)Analysis
White to move — find the best continuation
8. Winning blow: queen to d5 (d6·2)Analysis
White to move — find the best continuation
9. Winning blow: queen to d8 (d7·3)Analysis
White to move — find the best continuation
10. Winning blow: queen to b6 (a5·2)Analysis
White to move — find the best continuation
Core set
11. Winning blow: queen to e6 (g4·5)Analysis
White to move — find the best continuation
12. Winning blow: pawn to d6 (e5·13)Analysis
White to move — find the best continuation
13. Winning blow: knight to d5 (e7·5)Analysis
White to move — find the best continuation
14. Winning blow: rook to c7 (c1·20)Analysis
White to move — find the best continuation
15. Winning blow: knight to d7 (f6·10)Analysis
White to move — find the best continuation
16. Mate in 2: queen to e7 (d7)Analysis
White to move — find the best continuation
17. Attack on the uncastled king: knight to e6 (d4·29)Analysis
White to move — find the best continuation
18. Mate in 2: queen to b5 (f1)Analysis
White to move — find the best continuation
19. Mate in 2: bishop to g6 (f7)Analysis
White to move — find the best continuation
20. Mate in 2: queen to b6 (a7·3)Analysis
White to move — find the best continuation
21. Trap the bishop on d3Analysis
White to move — find the best continuation
22. Mate in 2: queen to f7 (f6·3)Analysis
White to move — find the best continuation
23. Mate in 2: queen to d6 (a3·3)Analysis
White to move — find the best continuation
24. Mate in 2: queen to e7 (g7)Analysis
White to move — find the best continuation
25. Winning blow: queen to f4 (g3·4)Analysis
White to move — find the best continuation
Challenge
Review
Day complete — every puzzle solved. See you tomorrow!
Day 599 →