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Day 82: Royal fork

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: pawn to c3 (d2)Shuffle Rating 780Analysis
White to move — find the best continuation
2. Attack on the uncastled king: bishop to d4 (a1·2)Shuffle Rating 780Analysis
White to move — find the best continuation
3. Attack on the uncastled king: knight to c5 (b3)Shuffle Rating 780Analysis
White to move — find the best continuation
4. Attack on the uncastled king: pawn to e4 (f3·12)Shuffle Rating 780Analysis
White to move — find the best continuation
5. Attack on the uncastled king: knight to d1Shuffle Rating 780Analysis
White to move — find the best continuation
6. Winning blow: pawn to e5 (f4·5)Shuffle Rating 780Analysis
White to move — find the best continuation
7. Attack on the uncastled king: bishop to d4 (g1)Shuffle Rating 780Analysis
White to move — find the best continuation
8. Attack on the uncastled king: pawn to c6 (d5·17)Shuffle Rating 780Analysis
White to move — find the best continuation
9. Attack on the uncastled king: pawn to g4 (f3·2)Shuffle Rating 780Analysis
White to move — find the best continuation
10. Attack on the uncastled king: pawn to c4 (b3·18)Shuffle Rating 780Analysis
White to move — find the best continuation

Core set

11. Fork: knight to e7 (d5·2)Shuffle Rating 912Analysis
White to move — find the best continuation
12. Fork: knight to e2 (f4·3)Shuffle Rating 914Analysis
Black to move — find the best continuation
13. Fork: rook to c7Shuffle Rating 915Analysis
White to move — find the best continuation
14. Discovered attack: knight to f3Shuffle Rating 916Analysis
Black to move — find the best continuation
15. Fork: knight to d5 (f4)Shuffle Rating 918Analysis
Black to move — find the best continuation
16. Attack on the uncastled king: bishop to g4 (d1·2)Shuffle Rating 780Analysis
White to move — find the best continuation
17. Attack on the uncastled king: pawn to c4 (b3·19)Shuffle Rating 780Analysis
White to move — find the best continuation
18. Attack on the uncastled king: king to g2 (f1)Shuffle Rating 780Analysis
White to move — find the best continuation
19. Attack on the uncastled king: pawn to g6 (f5·8)Shuffle Rating 780Analysis
White to move — find the best continuation
20. Attack on the uncastled king: king to c2 (b1·2)Shuffle Rating 780Analysis
White to move — find the best continuation
21. Attack on the uncastled king: pawn to e5 (d4·41)Shuffle Rating 780Analysis
White to move — find the best continuation
22. Attack on the uncastled king: rook to a4 (a1)Shuffle Rating 780Analysis
White to move — find the best continuation
23. Attack on the uncastled king: pawn to e5 (d4·42)Shuffle Rating 780Analysis
White to move — find the best continuation
24. Winning blow: knight to d8Shuffle Rating 780Analysis
White to move — find the best continuation
25. Attack on the uncastled king: pawn to f4 (g3·29)Shuffle Rating 780Analysis
White to move — find the best continuation

Challenge

26. Winning blow: rook to d7 (f7)Shuffle Rating 920Analysis
White to move — find the best continuation
27. Attack on the uncastled king: knight to f6 (e4·4)Shuffle Rating 920Analysis
White to move — find the best continuation
28. Winning blow: rook to e6 (e3)Shuffle Rating 920Analysis
White to move — find the best continuation

Review

29. Attack on the uncastled king: bishop to g2 (f1)Shuffle Rating 780Analysis
White to move — find the best continuation
30. Winning blow: pawn to f3 (e2)Shuffle Rating 780Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

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