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The 1000-day course

Day 369: Royal fork

Target rating: 1076

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. Winning blow: rook to d7 (d6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
2. Winning blow: knight to c3 (e4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
3. Attack on the uncastled king: pawn to g6 (h5·12)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
4. Winning blow: bishop to d4 (c5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
5. Winning blow: knight to e7 (f5·6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
6. Attack on the uncastled king: pawn to f4 (e3·45)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
7. Winning blow: queen to b6 (a7)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
8. Attack on the uncastled king: rook to d8 (d1·11)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
9. Attack on the uncastled king: pawn to d3 (c2·18)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
10. Winning blow: rook to b1 (a1·5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Core set

11. Winning blow: pawn to e7 (f6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
12. Attack on the uncastled king: queen to e7 (d6)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
13. Winning blow: queen to f8 (g7·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
14. Winning blow: knight to d7 (c5·10)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
15. Attack on the uncastled king: queen to b6 (g1·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
16. Attack on the uncastled king: bishop to h7 (b1·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
17. Attack on the uncastled king: bishop to a7 (e3·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
18. Attack on the uncastled king: knight to c6 (e5·15)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
19. Attack on the uncastled king: bishop to b6 (e3·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
20. Winning blow: bishop to f5 (c2·3)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
21. Attack on the uncastled king: bishop to h7 (d3·4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
22. Attack on the uncastled king: queen to e4 (h1·9)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
23. Attack on the uncastled king: rook to b3 (a3·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
24. Attack on the uncastled king: queen to f3 (f2·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
25. Attack on the uncastled king: knight to e6 (c5·19)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Challenge

26. Winning blow: pawn to a8 (a7·5)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
27. Mate in 2: queen to a7 (c5·2)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation
28. Mate in 2: bishop to f7 (c4)Analysis
a8b7c6d5e4f3g2h1
White to move — find the best continuation

Review

29. Back-rank mate in 2 on e2 (d4)Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation
30. Mate in 1: queen to f2 (d4·2)Analysis
h1g2f3e4d5c6b7a8
Black to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 370 →