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Day 16: 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. Mate in 1: knight to e7Shuffle Rating 702Analysis
White to move — find the best continuation
2. Mate in 1: queen to h7 (h5)Shuffle Rating 703Analysis
White to move — find the best continuation
3. Mate in 1: queen to h7 (h6)Shuffle Rating 710Analysis
White to move — find the best continuation
4. Mate in 1: queen to g2 (b2)Shuffle Rating 719Analysis
Black to move — find the best continuation
5. Mate in 1: bishop to d6Shuffle Rating 721Analysis
White to move — find the best continuation
6. Mate in 1: queen to g2 (d5·3)Shuffle Rating 721Analysis
Black to move — find the best continuation
7. Mate in 1: rook to d8Shuffle Rating 721Analysis
White to move — find the best continuation
8. Mate in 1: queen to g7 (g4)Shuffle Rating 721Analysis
White to move — find the best continuation
9. Mate in 1: queen to h5 (e2)Shuffle Rating 722Analysis
White to move — find the best continuation
10. Back-rank mate in 2 on a1 (a3)Shuffle Rating 703Analysis
Black to move — find the best continuation

Core set

11. Fork: knight to c5 (e6)Shuffle Rating 739Analysis
Black to move — find the best continuation
12. Fork: knight to d3Shuffle Rating 747Analysis
Black to move — find the best continuation
13. Fork: knight to f3Shuffle Rating 748Analysis
Black to move — find the best continuation
14. Fork: knight to e7 (c6·2)Shuffle Rating 758Analysis
White to move — find the best continuation
15. Fork: knight to d4 (c2·2)Shuffle Rating 761Analysis
Black to move — find the best continuation
16. Back-rank mate in 2 on e1 (e3)Shuffle Rating 705Analysis
Black to move — find the best continuation
17. Mate in 2: queen to h7Shuffle Rating 706Analysis
White to move — find the best continuation
18. Back-rank mate in 2 on c1Shuffle Rating 711Analysis
Black to move — find the best continuation
19. Back-rank mate in 1 on f8Shuffle Rating 713Analysis
White to move — find the best continuation
20. Mate in 2: rook to e8 (e3)Shuffle Rating 715Analysis
White to move — find the best continuation
21. Mate in 2: rook to d1 (d8)Shuffle Rating 716Analysis
Black to move — find the best continuation
22. Back-rank mate in 1 on e1Shuffle Rating 717Analysis
Black to move — find the best continuation
23. Back-rank mate in 2 on e1 (e4)Shuffle Rating 722Analysis
Black to move — find the best continuation
24. Mate in 1: queen to e1 (a5)Shuffle Rating 722Analysis
Black to move — find the best continuation
25. Mate in 2: rook to e8 (e5)Shuffle Rating 722Analysis
White to move — find the best continuation

Challenge

26. Attack on the uncastled king: pawn to b3Shuffle Rating 780Analysis
White to move — find the best continuation
27. Discovered attack: knight to f4Shuffle Rating 899Analysis
Black to move — find the best continuation
28. Winning blow: pawn to c3 (b2·8)Shuffle Rating 920Analysis
White to move — find the best continuation

Review

29. Mate in 1: rook to f8Shuffle Rating 719Analysis
White to move — find the best continuation
30. Attack on the uncastled king: queen to d5 (b3)Shuffle Rating 780Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 17 →