Day 870: Sacrifice attack
Target rating: 1843
Lesson of the day
A sacrificial attack gives up material on purpose to rip the king's shelter open and launch a decisive assault. The sac is sound when you get concrete assets in return: open lines to the king, tempi, pieces ready to pour in. The signs: a poorly sheltered king, your forces aimed at its home, defenders stranded far away. The iron rule is to calculate, not hope — once the material is gone, there is no way back.
Warm-up
1. Mate in 3: queen to a8 (d5·4)Analysis
White to move — find the best continuation
2. Mate in 3: queen to f6 (h6)Analysis
White to move — find the best continuation
3. Mate in 3: queen to e6 (g4)Analysis
White to move — find the best continuation
4. Mate in 3: knight to d5 (b6)Analysis
White to move — find the best continuation
5. Mate in 2: queen to e6 (f5·5)Analysis
White to move — find the best continuation
6. Mate in 3: queen to g5 (g3·2)Analysis
White to move — find the best continuation
7. Mate in 3: rook to e6 (e4)Analysis
White to move — find the best continuation
8. Mate in 3: queen to g8 (b3)Analysis
White to move — find the best continuation
9. Mate in 3: queen to a6 (d3)Analysis
White to move — find the best continuation
10. Mate in 3: rook to a2 (a1)Analysis
White to move — find the best continuation
Core set
11. Mate in 2: rook to f5 (f2)Analysis
White to move — find the best continuation
12. Mate in 3: queen to g7 (g2)Analysis
White to move — find the best continuation
13. Mate in 3: rook to a8 (a7·2)Analysis
White to move — find the best continuation
14. Mate in 3: queen to c6 (a6·4)Analysis
White to move — find the best continuation
15. Mate in 3: pawn to g6 (f5·4)Analysis
White to move — find the best continuation
16. Fork: queen to a8 (a5)Analysis
White to move — find the best continuation
17. Mate in 3: knight to f6 (d5)Analysis
White to move — find the best continuation
18. Winning blow: queen to d6 (f4)Analysis
White to move — find the best continuation
19. Mate in 2: queen to d5 (g2·2)Analysis
Black to move — find the best continuation
20. Winning blow: queen to h7 (d7·2)Analysis
White to move — find the best continuation
21. Mate in 2: rook to f3 (f6)Analysis
Black to move — find the best continuation
22. Winning blow: queen to d5 (f3·8)Analysis
White to move — find the best continuation
23. Mate in 3: rook to h7 (h1·4)Analysis
White to move — find the best continuation
24. Winning blow: queen to c5 (g1·3)Analysis
White to move — find the best continuation
25. Mate in 3: double attack on b6Analysis
White to move — find the best continuation
Challenge
Review
Day complete — every puzzle solved. See you tomorrow!
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