Day 365: Discovered check
Target rating: 1070
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: queen to g5 (e7)Analysis
White to move — find the best continuation
2. Attack on the uncastled king: bishop to g3 (h4·2)Analysis
White to move — find the best continuation
3. Attack on the uncastled king: knight to f5 (e7)Analysis
White to move — find the best continuation
4. Winning blow: bishop to b5 (a4·2)Analysis
White to move — find the best continuation
5. Winning blow: rook to f3 (g3)Analysis
White to move — find the best continuation
6. Winning blow: rook to a2 (a3)Analysis
White to move — find the best continuation
7. Attack on the uncastled king: knight to e3 (f1·2)Analysis
White to move — find the best continuation
8. Attack on the uncastled king: knight to f7 (e5·20)Analysis
White to move — find the best continuation
9. Attack on the uncastled king: queen to f2 (g1)Analysis
White to move — find the best continuation
10. Winning blow: rook to f8 (c8)Analysis
White to move — find the best continuation
Core set
11. Winning blow: rook to c7 (e7·2)Analysis
White to move — find the best continuation
12. Winning blow: queen to b5 (f1·2)Analysis
White to move — find the best continuation
13. Winning blow: rook to d5 (d1·9)Analysis
White to move — find the best continuation
14. Winning blow: pawn to d6 (e5·10)Analysis
White to move — find the best continuation
15. Attack on the uncastled king: rook to a8 (a7·2)Analysis
White to move — find the best continuation
16. Winning blow: queen to c2 (d2·2)Analysis
White to move — find the best continuation
17. Winning blow: queen to d2 (a5)Analysis
White to move — find the best continuation
18. Attack on the uncastled king: queen to c3 (c2)Analysis
White to move — find the best continuation
19. Winning blow: queen to f2 (c2·2)Analysis
White to move — find the best continuation
20. Winning blow: queen to g8 (e6·2)Analysis
White to move — find the best continuation
21. Winning blow: queen to e4 (f4)Analysis
White to move — find the best continuation
22. Winning blow: rook to a1 (f1·2)Analysis
White to move — find the best continuation
23. Winning blow: queen to b8 (b2·2)Analysis
White to move — find the best continuation
24. Attack on the uncastled king: bishop to f7 (a2)Analysis
White to move — find the best continuation
25. Winning blow: rook to d2 (f2)Analysis
White to move — find the best continuation
Challenge
Review
Day complete — every puzzle solved. See you tomorrow!
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