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Day 683: Check chase

Lesson of the day

In a check chase every one of your moves is a check, so the opponent never gets a free second. The king is herded across the board until it loses a piece or walks into a decisive blow. Such lines are the easiest to calculate: each check allows only a handful of replies, so try them all. Make it a habit to start calculating any sharp position with the checks — they are the most forcing moves on the board.

Warm-up

1. Attack on the uncastled king: bishop to f7 (d5·5)Shuffle Rating 1290Analysis
White to move — find the best continuation
2. Winning blow: queen to h8 (h3·2)Shuffle Rating 1290Analysis
White to move — find the best continuation
3. Winning blow: bishop to f7 (c4·4)Shuffle Rating 1290Analysis
White to move — find the best continuation
4. Winning blow: queen to e6 (b3·3)Shuffle Rating 1290Analysis
White to move — find the best continuation
5. Winning blow: queen to d6 (a3·4)Shuffle Rating 1290Analysis
White to move — find the best continuation
6. Attack on the uncastled king: queen to b7 (b5)Shuffle Rating 1290Analysis
White to move — find the best continuation
7. Attack on the uncastled king: queen to c7 (h2·3)Shuffle Rating 1290Analysis
White to move — find the best continuation
8. Attack on the uncastled king: queen to e6 (e2·3)Shuffle Rating 1290Analysis
White to move — find the best continuation
9. Winning blow: queen to g5 (g4·2)Shuffle Rating 1290Analysis
White to move — find the best continuation
10. Winning blow: queen to f8 (f3·5)Shuffle Rating 1290Analysis
White to move — find the best continuation

Core set

11. Winning blow: queen to f6 (f3·6)Shuffle Rating 1560Analysis
White to move — find the best continuation
12. Winning blow: queen to b7 (b4·3)Shuffle Rating 1560Analysis
White to move — find the best continuation
13. Winning blow: rook to d8 (d4·8)Shuffle Rating 1650Analysis
White to move — find the best continuation
14. Winning blow: rook to g4 (h4)Shuffle Rating 1650Analysis
White to move — find the best continuation
15. Winning blow: rook to b4 (a4·2)Shuffle Rating 1700Analysis
White to move — find the best continuation
16. Fork: knight to e7 (d5·5)Shuffle Rating 1563Analysis
White to move — find the best continuation
17. Winning blow: knight to d4 (f3·8)Shuffle Rating 1560Analysis
White to move — find the best continuation
18. Attack on the uncastled king: knight to e5 (c6·2)Shuffle Rating 1560Analysis
White to move — find the best continuation
19. Winning blow: bishop to a2 (b1·3)Shuffle Rating 1560Analysis
White to move — find the best continuation
20. Attack on the uncastled king: bishop to g7 (b2·11)Shuffle Rating 1560Analysis
White to move — find the best continuation
21. Winning blow: knight to c5 (b3·14)Shuffle Rating 1560Analysis
White to move — find the best continuation
22. Mate in 2: queen to f1 (b5·2)Shuffle Rating 1482Analysis
Black to move — find the best continuation
23. Fork: rook to e2 (g2)Shuffle Rating 1482Analysis
White to move — find the best continuation
24. Mate in 3: rook to h2 (h3)Shuffle Rating 1565Analysis
Black to move — find the best continuation
25. Mate in 2: knight to e5 (g4·2)Shuffle Rating 1440Analysis
White to move — find the best continuation

Challenge

26. Discovered attack: queen to c5Shuffle Rating 1674Analysis
White to move — find the best continuation
27. Castling-960 to the rescue on h1 (g1·13)Shuffle Rating 1690Analysis
White to move — find the best continuation
28. Deflection: knight to e3Shuffle Rating 1774Analysis
Black to move — find the best continuation

Review

29. Attack on the uncastled king: queen to a6 (e2·6)Shuffle Rating 1630Analysis
White to move — find the best continuation
30. Winning blow: bishop to a3 (b2)Shuffle Rating 1280Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 684 →