Day 797: Discovered check
Target rating: 1696
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. Attack on the uncastled king: queen to f6 (d4·5)Analysis
White to move — find the best continuation
2. Mate in 3: queen to d5 (g2·2)Analysis
White to move — find the best continuation
3. Mate in 3: rook to d8 (a8)Analysis
White to move — find the best continuation
4. Mate in 3: queen to f6 (g6)Analysis
White to move — find the best continuation
5. Mate in 3: king to g2Analysis
White to move — find the best continuation
6. Attack on the uncastled king: pawn to g7 (f6·7)Analysis
White to move — find the best continuation
7. Mate in 3: bishop to c4 (d3)Analysis
White to move — find the best continuation
8. Mate in 3: rook to e8 (e7·3)Analysis
White to move — find the best continuation
9. Mate in 3: rook to h6 (h8)Analysis
White to move — find the best continuation
10. Mate in 3: bishop to a5 (d2)Analysis
White to move — find the best continuation
Core set
11. Mate in 3: knight to h6 (f5)Analysis
White to move — find the best continuation
12. Mate in 3: pawn to e4 (e3)Analysis
White to move — find the best continuation
13. Mate in 3: rook to d7 (b7)Analysis
White to move — find the best continuation
14. Mate in 3: bishop to d7 (a4)Analysis
White to move — find the best continuation
15. Mate in 3: bishop to e6 (f7·2)Analysis
White to move — find the best continuation
16. Attack on the uncastled king: bishop to g7 (c3·7)Analysis
White to move — find the best continuation
17. Winning blow: knight to f7 (e5·13)Analysis
White to move — find the best continuation
18. Winning blow: queen to d5 (e4·2)Analysis
White to move — find the best continuation
19. Attack on the uncastled king: bishop to d7 (h3·3)Analysis
White to move — find the best continuation
20. Winning blow: queen to e8 (b5·6)Analysis
White to move — find the best continuation
21. Winning blow: rook to e7 (e1·24)Analysis
White to move — find the best continuation
22. Attack on the uncastled king: bishop to g7 (a1·14)Analysis
White to move — find the best continuation
23. Winning blow: rook to d6 (c6·6)Analysis
White to move — find the best continuation
24. Winning blow: bishop to h5 (e2·3)Analysis
White to move — find the best continuation
25. Winning blow: queen to e7 (g5·8)Analysis
White to move — find the best continuation
Challenge
Review
Day complete — every puzzle solved. See you tomorrow!
Day 798 →