Day 230: Discovered check
Target rating: 902
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: pawn to e5 (f4·50)Analysis
White to move — find the best continuation
2. Attack on the uncastled king: bishop to e4 (f3·6)Analysis
White to move — find the best continuation
3. Attack on the uncastled king: rook to h5 (h1·6)Analysis
White to move — find the best continuation
4. Attack on the uncastled king: king to g2 (g1·4)Analysis
White to move — find the best continuation
5. Attack on the uncastled king: pawn to f3 (g2·13)Analysis
White to move — find the best continuation
6. Attack on the uncastled king: queen to g2 (g1·6)Analysis
White to move — find the best continuation
7. Attack on the uncastled king: pawn to g3 (h2·16)Analysis
White to move — find the best continuation
8. Attack on the uncastled king: bishop to d3 (f1)Analysis
White to move — find the best continuation
9. Attack on the uncastled king: knight to a3 (b1·6)Analysis
White to move — find the best continuation
10. Winning blow: queen to e1Analysis
White to move — find the best continuation
Core set
11. Winning blow: knight to e6 (g5·3)Analysis
White to move — find the best continuation
12. Attack on the uncastled king: pawn to b7 (b6·2)Analysis
White to move — find the best continuation
13. Winning blow: knight to f5 (d6·4)Analysis
White to move — find the best continuation
14. Winning blow: rook to e5 (d5·2)Analysis
White to move — find the best continuation
15. Winning blow: rook to d4 (b4)Analysis
White to move — find the best continuation
16. Winning blow: pawn to f4 (e3·6)Analysis
White to move — find the best continuation
17. Winning blow: rook to a1 (b1·2)Analysis
White to move — find the best continuation
18. Fork: knight to e4Analysis
Black to move — find the best continuation
19. Winning blow: pawn to b3 (a2·9)Analysis
White to move — find the best continuation
20. Attack on the uncastled king: pawn to d5 (e4·115)Analysis
White to move — find the best continuation
21. Winning blow: queen to a1 (e1)Analysis
White to move — find the best continuation
22. Fork: knight to f6 (d5·4)Analysis
White to move — find the best continuation
23. Winning blow: queen to d4 (a4)Analysis
White to move — find the best continuation
24. Attack on the uncastled king: bishop to e3 (f2·3)Analysis
White to move — find the best continuation
25. Attack on the uncastled king: bishop to g6 (b1·10)Analysis
White to move — find the best continuation
Challenge
Review
Day complete — every puzzle solved. See you tomorrow!
Day 231 →