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The 1000-day course

Day 257: Setup fork

Target rating: 929

Lesson of the day

A setup fork is a double attack that exists only because of the unusual starting squares — in classical chess these targets never stand side by side. Look for pairs of undefended pieces on your opponent's back rank and for squares from which a knight or pawn hits both at once. Such forks usually appear within the first moves, before the pieces disperse. In every new position, note right away which starting pieces are defended by no one.

Warm-up

1. Attack on the uncastled king: rook to f4 (f1·4)Analysis
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White to move — find the best continuation
2. Attack on the uncastled king: bishop to e4 (b1·14)Analysis
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White to move — find the best continuation
3. Attack on the uncastled king: pawn to d5 (c4·81)Analysis
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White to move — find the best continuation
4. Attack on the uncastled king: knight to g4 (e3·4)Analysis
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White to move — find the best continuation
5. Winning blow: knight to e8 (d6)Analysis
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White to move — find the best continuation
6. Attack on the uncastled king: queen to c2 (c6)Analysis
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White to move — find the best continuation
7. Attack on the uncastled king: pawn to h3 (g2·38)Analysis
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White to move — find the best continuation
8. Attack on the uncastled king: queen to c3 (h8)Analysis
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White to move — find the best continuation
9. Attack on the uncastled king: bishop to d5 (h1·15)Analysis
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White to move — find the best continuation
10. Attack on the uncastled king: bishop to a8 (h1·27)Analysis
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White to move — find the best continuation

Core set

11. Attack on the uncastled king: queen to f6 (h4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
12. Winning blow: knight to f5 (e3·5)Analysis
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White to move — find the best continuation
13. Attack on the uncastled king: queen to g7 (a1·6)Analysis
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White to move — find the best continuation
14. Winning blow: queen to e8 (e3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
15. Winning blow: knight to c5 (a6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
16. Winning blow: rook to e7 (g7)Analysis
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White to move — find the best continuation
17. Winning blow: rook to d7 (f7·2)Analysis
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White to move — find the best continuation
18. Winning blow: knight to d5 (c7·4)Analysis
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White to move — find the best continuation
19. Winning blow: queen to e6 (c4)Analysis
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White to move — find the best continuation
20. Winning blow: queen to c6 (a4)Analysis
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White to move — find the best continuation
21. Winning blow: queen to c7 (f7)Analysis
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White to move — find the best continuation
22. Winning blow: rook to h6 (h5)Analysis
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White to move — find the best continuation
23. Winning blow: rook to c7 (d7·2)Analysis
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White to move — find the best continuation
24. Winning blow: queen to f7 (d7)Analysis
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White to move — find the best continuation
25. Winning blow: rook to c7 (c5)Analysis
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White to move — find the best continuation

Challenge

26. Mate in 1: queen to e1 (h4·2)Analysis
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Black to move — find the best continuation
27. Mate in 1: pin on h5Analysis
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White to move — find the best continuation
28. Mate in 2: knight to e6 (g5·2)Analysis
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White to move — find the best continuation

Review

29. Winning blow: knight to f6 (g4·6)Analysis
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White to move — find the best continuation
30. Attack on the uncastled king: rook to f2 (f1)Analysis
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White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

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