Day 674: Discovered check
Target rating: 1468
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. Mate in 2: knight to f6 (h5·2)Analysis
White to move — find the best continuation
2. Attack on the uncastled king: queen to f7 (b3·8)Analysis
White to move — find the best continuation
3. Winning blow: queen to d7 (d6·3)Analysis
White to move — find the best continuation
4. Mate in 2: queen to e6 (a2·2)Analysis
White to move — find the best continuation
5. Winning blow: queen to h5 (e2·4)Analysis
White to move — find the best continuation
6. Attack on the uncastled king: bishop to h7 (c2·2)Analysis
White to move — find the best continuation
7. Winning blow: pawn to b4 (c3·3)Analysis
White to move — find the best continuation
8. Winning blow: queen to e8 (b5·4)Analysis
White to move — find the best continuation
9. Mate in 2: queen to g7 (g4·4)Analysis
White to move — find the best continuation
10. Winning blow: rook to g7 (g4)Analysis
White to move — find the best continuation
Core set
11. Winning blow: knight to f6 (e4·28)Analysis
White to move — find the best continuation
12. Winning blow: queen to b7 (b3·5)Analysis
White to move — find the best continuation
13. Winning blow: rook to c8 (c1·19)Analysis
White to move — find the best continuation
14. Winning blow: knight to c5 (d7·3)Analysis
White to move — find the best continuation
15. Winning blow: rook to b6 (c6·2)Analysis
White to move — find the best continuation
16. Fork: knight to e2 (d4·8)Analysis
Black to move — find the best continuation
17. Mate in 2: queen to d7 (h7·2)Analysis
White to move — find the best continuation
18. Mate in 2: queen to g7 (d7·3)Analysis
White to move — find the best continuation
19. Mate in 2: queen to b8 (c7·2)Analysis
White to move — find the best continuation
20. Mate in 2: queen to a7 (a5·6)Analysis
White to move — find the best continuation
21. Mate in 2: queen to b1 (a1)Analysis
Black to move — find the best continuation
22. Mate in 2: rook to f8 (f2·4)Analysis
White to move — find the best continuation
23. Mate in 2: bishop to e3 (d4)Analysis
Black to move — find the best continuation
24. Mate in 2: pin on h3 (g3)Analysis
White to move — find the best continuation
25. Mate in 2: queen to c1 (f4·2)Analysis
Black to move — find the best continuation
Challenge
Review
Day complete — every puzzle solved. See you tomorrow!
Day 675 →