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Day 715: Development punish

Lesson of the day

Punishing lazy development: half of your opponent's army is asleep on its starting squares, which means you outnumber him where the fight is. Count not the pieces on the board but the pieces in play — if five or more of his pieces have never moved, look for a forcing attack. The sign is a development lead plus open lines toward his king. Strike immediately: give him two quiet moves and the advantage evaporates.

Warm-up

1. Winning blow: rook to h5 (g5·4)Shuffle Rating 1340Analysis
White to move — find the best continuation
2. Winning blow: rook to f1 (f2·6)Shuffle Rating 1340Analysis
White to move — find the best continuation
3. Winning blow: queen to c2 (c1·4)Shuffle Rating 1340Analysis
White to move — find the best continuation
4. Winning blow: queen to d1 (d5)Shuffle Rating 1340Analysis
White to move — find the best continuation
5. Winning blow: queen to e1 (d2·2)Shuffle Rating 1340Analysis
White to move — find the best continuation
6. Winning blow: rook to f3 (f1·9)Shuffle Rating 1340Analysis
White to move — find the best continuation
7. Winning blow: rook to e2 (e1·11)Shuffle Rating 1340Analysis
White to move — find the best continuation
8. Winning blow: queen to d7 (b5·5)Shuffle Rating 1430Analysis
White to move — find the best continuation
9. Winning blow: queen to c8 (c4·2)Shuffle Rating 1430Analysis
White to move — find the best continuation
10. Winning blow: queen to e7 (f8·5)Shuffle Rating 1430Analysis
White to move — find the best continuation

Core set

11. Winning blow: rook to f4 (f1·11)Shuffle Rating 1650Analysis
White to move — find the best continuation
12. Winning blow: bishop to b6 (g1·7)Shuffle Rating 1650Analysis
White to move — find the best continuation
13. Winning blow: bishop to c5 (e3·6)Shuffle Rating 1750Analysis
White to move — find the best continuation
14. Winning blow: pawn to e5 (e4·8)Shuffle Rating 1750Analysis
White to move — find the best continuation
15. Winning blow: queen to e4 (h1)Shuffle Rating 1750Analysis
White to move — find the best continuation
16. Mate in 3: pawn to g6 (g7)Shuffle Rating 1611Analysis
Black to move — find the best continuation
17. Mate in 2: pin on e1 (e8)Shuffle Rating 1611Analysis
Black to move — find the best continuation
18. Winning blow: rook to b1 (c1·11)Shuffle Rating 1610Analysis
White to move — find the best continuation
19. Winning blow: rook to h4 (g4·2)Shuffle Rating 1610Analysis
White to move — find the best continuation
20. Winning blow: pawn to e7 (e6·21)Shuffle Rating 1610Analysis
White to move — find the best continuation
21. Winning blow: queen to e1 (e4)Shuffle Rating 1610Analysis
White to move — find the best continuation
22. Attack on the uncastled king: bishop to d4 (g1·13)Shuffle Rating 1610Analysis
White to move — find the best continuation
23. Attack on the uncastled king: king to a2 (b1·12)Shuffle Rating 1610Analysis
White to move — find the best continuation
24. Winning blow: knight to c6 (b4·11)Shuffle Rating 1610Analysis
White to move — find the best continuation
25. Winning blow: pawn to f6 (f5·6)Shuffle Rating 1610Analysis
White to move — find the best continuation

Challenge

26. Attack on the uncastled king: bishop to b6 (g1·10)Shuffle Rating 1700Analysis
White to move — find the best continuation
27. Pin: queen to f6Shuffle Rating 1747Analysis
White to move — find the best continuation
28. Winning blow: bishop to g6 (e4·4)Shuffle Rating 1840Analysis
White to move — find the best continuation

Review

29. Winning blow: rook to e7 (f7·6)Shuffle Rating 1430Analysis
White to move — find the best continuation
30. Winning blow: bishop to e6 (f5·3)Shuffle Rating 1430Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 716 →