Day 762: Battery
Target rating: 1623
Lesson of the day
A battery stacks two long-range pieces on one line — a queen behind a bishop on a diagonal, or doubled rooks on a file. The front piece strikes with double force: capture it, and the piece behind recaptures with even more pressure. The battery is ready when both pieces already stare at one point and only the front strike is missing. Build batteries in advance on lines leading to the king — the doubling itself often breeds the combination.
Warm-up
1. Attack on the uncastled king: rook to g8 (g1·11)Analysis
White to move — find the best continuation
2. Mate in 3: queen to b6 (b7)Analysis
White to move — find the best continuation
3. Attack on the uncastled king: queen to b6 (f2·7)Analysis
White to move — find the best continuation
4. Mate in 3: queen to g7 (h8)Analysis
White to move — find the best continuation
5. Mate in 3: queen to c4Analysis
White to move — find the best continuation
6. Attack on the uncastled king: queen to g8 (h8·2)Analysis
White to move — find the best continuation
7. Mate in 3: rook to b6Analysis
White to move — find the best continuation
8. Mate in 2: rook to f8 (f5)Analysis
White to move — find the best continuation
9. Mate in 3: rook to e7 (g7)Analysis
White to move — find the best continuation
10. Mate in 3: bishop to a4 (d1)Analysis
White to move — find the best continuation
Core set
11. Winning blow: rook to e7 (c7·3)Analysis
White to move — find the best continuation
12. Mate in 3: queen to d6 (b4)Analysis
White to move — find the best continuation
13. Attack on the uncastled king: knight to c6 (d4·26)Analysis
White to move — find the best continuation
14. Winning blow: queen to e5 (d6·3)Analysis
White to move — find the best continuation
15. Winning blow: queen to e5 (c5·2)Analysis
White to move — find the best continuation
16. Winning blow: rook to g8 (g1·16)Analysis
White to move — find the best continuation
17. Attack on the uncastled king: rook to h8 (h1·11)Analysis
White to move — find the best continuation
18. Mate in 2: bishop to e4Analysis
Black to move — find the best continuation
19. Attack on the uncastled king: queen to c8 (b7·10)Analysis
White to move — find the best continuation
20. Winning blow: knight to f3 (e1·2)Analysis
White to move — find the best continuation
21. Winning blow: queen to g6 (d6·2)Analysis
White to move — find the best continuation
22. Winning blow: queen to h7 (b1·3)Analysis
White to move — find the best continuation
23. Fork: knight to c6 (b4·2)Analysis
White to move — find the best continuation
24. Winning blow: pawn to e6 (e5·11)Analysis
White to move — find the best continuation
25. Winning blow: queen to e5 (d5·5)Analysis
White to move — find the best continuation
Challenge
Review
Day complete — every puzzle solved. See you tomorrow!
Day 763 →