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Day 950: Mate in 4+

Lesson of the day

Mate in four or longer is a marathon of forcing moves where the grip must never loosen. The tools are the same: checks, double threats and sacrifices that deny the opponent a single free tempo. Do not juggle the whole tree at once — walk the main line all the way to mate first, then verify the side branches. If somewhere the defender finds one quiet move that holds, your very first move was wrong.

Warm-up

1. Chess960 tactic on f6 (f7)Shuffle Rating 2120Analysis
White to move — find the best continuation
2. Chess960 tactic on e7Shuffle Rating 2120Analysis
White to move — find the best continuation
3. Chess960 tactic on h6Shuffle Rating 2120Analysis
White to move — find the best continuation
4. Chess960 tactic on g2Shuffle Rating 2120Analysis
White to move — find the best continuation
5. Chess960 tactic on g8 (g7)Shuffle Rating 2120Analysis
White to move — find the best continuation
6. Chess960 tactic on c6 (d5)Shuffle Rating 2120Analysis
White to move — find the best continuation
7. Chess960 tactic on a8 (c6)Shuffle Rating 2120Analysis
White to move — find the best continuation
8. Winning blow: bishop to h7 (b1·6)Shuffle Rating 2100Analysis
White to move — find the best continuation
9. Chess960 tactic on d5 (h1)Shuffle Rating 2120Analysis
White to move — find the best continuation
10. Winning blow: rook to c6 (c1·14)Shuffle Rating 2100Analysis
White to move — find the best continuation

Core set

11. Winning blow: king to f1 (g2·4)Shuffle Rating 2120Analysis
White to move — find the best continuation
12. Attack on the uncastled king: queen to g8 (h8·4)Shuffle Rating 2120Analysis
White to move — find the best continuation
13. Chess960 tactic on d5 (c5)Shuffle Rating 2120Analysis
White to move — find the best continuation
14. Chess960 tactic on d5 (e4)Shuffle Rating 2120Analysis
White to move — find the best continuation
15. Chess960 tactic on e4Shuffle Rating 2120Analysis
White to move — find the best continuation
16. Winning blow: knight to d6 (e4·23)Shuffle Rating 2100Analysis
White to move — find the best continuation
17. Winning blow: bishop to d5 (e6·5)Shuffle Rating 2100Analysis
White to move — find the best continuation
18. Winning blow: queen to c7 (g3·5)Shuffle Rating 2100Analysis
White to move — find the best continuation
19. Winning blow: rook to c6 (c1·15)Shuffle Rating 2100Analysis
White to move — find the best continuation
20. Winning blow: bishop to e7 (a3)Shuffle Rating 2100Analysis
White to move — find the best continuation
21. Chess960 tactic on g6 (b6)Shuffle Rating 2120Analysis
White to move — find the best continuation
22. Winning blow: queen to f6 (a1·7)Shuffle Rating 2100Analysis
White to move — find the best continuation
23. Chess960 tactic on e5 (e4)Shuffle Rating 2120Analysis
White to move — find the best continuation
24. Winning blow: rook to b8 (e8·2)Shuffle Rating 2100Analysis
White to move — find the best continuation
25. Chess960 tactic on g3 (g2)Shuffle Rating 2120Analysis
White to move — find the best continuation

Challenge

26. Mate in 2: bishop to b3Shuffle Rating 2194Analysis
White to move — find the best continuation
27. Winning blow: rook to f7 (f1·30)Shuffle Rating 2150Analysis
White to move — find the best continuation
28. Winning blow: rook to c8 (c7·6)Shuffle Rating 2290Analysis
White to move — find the best continuation

Review

29. Attack on the uncastled king: rook to f6 (f5)Shuffle Rating 2150Analysis
White to move — find the best continuation
30. Winning blow: pawn to g4 (g3·12)Shuffle Rating 2060Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 951 →