Day 311: Discovered check
Target rating: 1000
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 e4 (b1·9)Analysis
White to move — find the best continuation
2. Attack on the uncastled king: pawn to d4 (c3·35)Analysis
White to move — find the best continuation
3. Attack on the uncastled king: pawn to e3 (f2·12)Analysis
White to move — find the best continuation
4. Attack on the uncastled king: bishop to c4 (f1·11)Analysis
White to move — find the best continuation
5. Attack on the uncastled king: queen to a5 (a6)Analysis
White to move — find the best continuation
6. Attack on the uncastled king: pawn to e4 (d3·51)Analysis
White to move — find the best continuation
7. Winning blow: bishop to d2 (e3)Analysis
White to move — find the best continuation
8. Winning blow: knight to e3 (d1)Analysis
White to move — find the best continuation
9. Attack on the uncastled king: knight to e4 (c3·13)Analysis
White to move — find the best continuation
10. Attack on the uncastled king: pawn to d5 (c4·95)Analysis
White to move — find the best continuation
Core set
11. Winning blow: rook to g7 (c7·2)Analysis
White to move — find the best continuation
12. Attack on the uncastled king: knight to f6 (e4·10)Analysis
White to move — find the best continuation
13. Winning blow: knight to b6 (c4·6)Analysis
White to move — find the best continuation
14. Winning blow: knight to e6 (g7·8)Analysis
White to move — find the best continuation
15. Winning blow: knight to a2 (c3)Analysis
White to move — find the best continuation
16. Mate in 2: knight to e7 (g6)Analysis
White to move — find the best continuation
17. Mate in 2: knight to g4Analysis
White to move — find the best continuation
18. Attack on the uncastled king: rook to e8 (e5·3)Analysis
White to move — find the best continuation
19. Attack on the uncastled king: queen to g6 (g4·3)Analysis
White to move — find the best continuation
20. Mate in 2: bishop to e2Analysis
White to move — find the best continuation
21. Attack on the uncastled king: queen to e6 (f6·2)Analysis
White to move — find the best continuation
22. Attack on the uncastled king: bishop to c6 (b7·3)Analysis
White to move — find the best continuation
23. Attack on the uncastled king: queen to f8 (f2·2)Analysis
White to move — find the best continuation
24. Mate in 2: queen to b8 (a7)Analysis
White to move — find the best continuation
25. Mate in 2: bishop to a6Analysis
White to move — find the best continuation
Challenge
Review
Day complete — every puzzle solved. See you tomorrow!
Day 312 →