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The 1000-day course

Day 28: Royal fork

Target rating: 600

Lesson of the day

A royal fork is a fork with check — one of the two targets is the king itself. The check must be answered first, so nobody is left to rescue the second piece. Look for squares where your piece gives check and simultaneously attacks an undefended queen or rook. It is the most reliable fork of all, because your opponent literally has no choice.

Warm-up

1. Attack on the uncastled king: pawn to f4 (e3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
2. Attack on the uncastled king: bishop to f6 (a1·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
3. Discovered attack: knight to f6Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
4. Mate in 2: rook to b8 (b7·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
5. Winning blow: bishop to f6Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
6. Attack on the uncastled king: bishop to f6 (a1·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
7. Attack on the uncastled king: knight to c5 (b3·6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
8. Fork: knight to e2 (f4·2)Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
9. Mate in 2: queen to d1 (d7)Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
10. Attack on the uncastled king: knight to d5Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Core set

11. Attack on the uncastled king: rook to b8 (b1·6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
12. Attack on the uncastled king: knight to d6 (e4·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
13. Attack on the uncastled king: knight to e6 (g5·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
14. Attack on the uncastled king: knight to e6 (f4·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
15. Attack on the uncastled king: bishop to f7 (g6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
16. Attack on the uncastled king: queen to a6 (f1)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
17. Fork: knight to d2 (e4)Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
18. Mate in 2: fork on h5Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
19. Attack on the uncastled king: pawn to a4 (b3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
20. Attack on the uncastled king: bishop to h8 (a1·8)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
21. Fork: queen to g4Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
22. Mate in 2: deflection on g5Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
23. Attack on the uncastled king: bishop to c4 (d3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
24. Attack on the uncastled king: bishop to g6 (b1·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
25. Fork: knight to d5 (c3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Challenge

26. Mate in 2: queen to h7 (d3·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
27. Mate in 1: rook to b7Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
28. Winning blow: rook to d5 (a5·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Review

29. Mate in 1: rook to f8 (f7)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
30. Attack on the uncastled king: queen to c7 (c5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 29 →