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Day 941: Sacrifice attack

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. Winning blow: queen to f6 (g5·5)Shuffle Rating 2100Analysis
White to move — find the best continuation
2. Winning blow: rook to e8 (e3·6)Shuffle Rating 2100Analysis
White to move — find the best continuation
3. Winning blow: knight to f6 (d7·8)Shuffle Rating 2100Analysis
White to move — find the best continuation
4. Winning blow: queen to e7 (c5·5)Shuffle Rating 2100Analysis
White to move — find the best continuation
5. Winning blow: queen to c6 (c2·5)Shuffle Rating 2100Analysis
White to move — find the best continuation
6. Attack on the uncastled king: knight to e6 (f4·13)Shuffle Rating 2100Analysis
White to move — find the best continuation
7. Winning blow: queen to f6 (d4·6)Shuffle Rating 2100Analysis
White to move — find the best continuation
8. Winning blow: queen to d4 (f2·4)Shuffle Rating 2100Analysis
White to move — find the best continuation
9. Winning blow: queen to d6 (d3·10)Shuffle Rating 2100Analysis
White to move — find the best continuation
10. Winning blow: queen to g6 (e8·2)Shuffle Rating 2100Analysis
White to move — find the best continuation

Core set

11. Fork: knight to h5 (g3·2)Shuffle Rating 2116Analysis
White to move — find the best continuation
12. Winning blow: knight to e5 (f3·22)Shuffle Rating 2120Analysis
White to move — find the best continuation
13. Mate in 3: rook to g8 (a8·2)Shuffle Rating 2170Analysis
White to move — find the best continuation
14. Fork: knight to f7 (e5·2)Shuffle Rating 2185Analysis
White to move — find the best continuation
15. Mate in 2: knight to d7 (e5·4)Shuffle Rating 2206Analysis
White to move — find the best continuation
16. Winning blow: knight to g6 (e5·11)Shuffle Rating 2100Analysis
White to move — find the best continuation
17. Winning blow: queen to c6 (e8·5)Shuffle Rating 2100Analysis
White to move — find the best continuation
18. Winning blow: queen to b7 (b3·7)Shuffle Rating 2100Analysis
White to move — find the best continuation
19. Winning blow: queen to e7 (d7·6)Shuffle Rating 2100Analysis
White to move — find the best continuation
20. Attack on the uncastled king: rook to f8 (f2·2)Shuffle Rating 2100Analysis
White to move — find the best continuation
21. Winning blow: knight to e6 (d4·28)Shuffle Rating 2100Analysis
White to move — find the best continuation
22. Attack on the uncastled king: rook to e8 (d8·2)Shuffle Rating 2100Analysis
White to move — find the best continuation
23. Winning blow: queen to d8 (g8·2)Shuffle Rating 2100Analysis
White to move — find the best continuation
24. Winning blow: queen to e6 (c8·4)Shuffle Rating 2100Analysis
White to move — find the best continuation
25. Fork: queen to d7 (f5)Shuffle Rating 2105Analysis
White to move — find the best continuation

Challenge

26. Mate in 2: queen to f5 (g5)Shuffle Rating 2208Analysis
White to move — find the best continuation
27. Chess960 tactic on e6 (e1)Shuffle Rating 2250Analysis
White to move — find the best continuation
28. Pin: rook to g8Shuffle Rating 2295Analysis
White to move — find the best continuation

Review

29. Winning blow: knight to b6 (c4·18)Shuffle Rating 2120Analysis
White to move — find the best continuation
30. Winning blow: queen to a6 (e2·8)Shuffle Rating 2060Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

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