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Day 902: Win the pinned piece

Lesson of the day

A pinned piece cannot flee, which means you can win it outright by attacking it one more time. Count attackers against defenders: if you outnumber them, the piece is yours. The best extra attacker is a pawn, since it costs less than anything it might capture. Do not rush the capture — build up the pressure first, then harvest.

Warm-up

1. Winning blow: rook to c7 (c5·3)Shuffle Rating 1870Analysis
White to move — find the best continuation
2. Winning blow: pawn to c7 (c6·14)Shuffle Rating 1870Analysis
White to move — find the best continuation
3. Winning blow: queen to e4 (d5)Shuffle Rating 1870Analysis
White to move — find the best continuation
4. Winning blow: queen to b7 (f3·8)Shuffle Rating 1870Analysis
White to move — find the best continuation
5. Winning blow: rook to e4 (e3·2)Shuffle Rating 1870Analysis
White to move — find the best continuation
6. Winning blow: pawn to d7 (c6·11)Shuffle Rating 1870Analysis
White to move — find the best continuation
7. Winning blow: pawn to f5 (e4·18)Shuffle Rating 1870Analysis
White to move — find the best continuation
8. Winning blow: queen to e8 (f8·3)Shuffle Rating 1870Analysis
White to move — find the best continuation
9. Winning blow: bishop to b6 (f2)Shuffle Rating 1870Analysis
White to move — find the best continuation
10. Winning blow: queen to f6 (b2·10)Shuffle Rating 1870Analysis
White to move — find the best continuation

Core set

11. Mate in 3: rook to f8 (c8·2)Shuffle Rating 1990Analysis
White to move — find the best continuation
12. Winning blow: queen to b7 (b3·6)Shuffle Rating 2010Analysis
White to move — find the best continuation
13. Discovered attack: queen to f4Shuffle Rating 2022Analysis
Black to move — find the best continuation
14. Discovered attack: knight to c3 (d5·2)Shuffle Rating 2027Analysis
Black to move — find the best continuation
15. Pin: queen to c8Shuffle Rating 2054Analysis
Black to move — find the best continuation
16. Mate in 3: queen to d5 (e4·3)Shuffle Rating 1980Analysis
White to move — find the best continuation
17. Mate in 3: pawn to g5 (g4·7)Shuffle Rating 1980Analysis
White to move — find the best continuation
18. Mate in 3: knight to a5 (c4)Shuffle Rating 1980Analysis
White to move — find the best continuation
19. Mate in 3: knight to f5 (e3·4)Shuffle Rating 1980Analysis
White to move — find the best continuation
20. Mate in 3: rook to a8 (a1·3)Shuffle Rating 1980Analysis
White to move — find the best continuation
21. Mate in 3: knight to c5 (e4·2)Shuffle Rating 1980Analysis
White to move — find the best continuation
22. Mate in 3: rook to h7 (h1·7)Shuffle Rating 1980Analysis
White to move — find the best continuation
23. Mate in 3: rook to e7 (g7·2)Shuffle Rating 1980Analysis
White to move — find the best continuation
24. Mate in 3: queen to c8 (c7·4)Shuffle Rating 1980Analysis
White to move — find the best continuation
25. Mate in 3: queen to b6 (e3·3)Shuffle Rating 1980Analysis
White to move — find the best continuation

Challenge

26. Winning blow: knight to f5 (d4·11)Shuffle Rating 2060Analysis
White to move — find the best continuation
27. Attack on the uncastled king: queen to e6 (e4·7)Shuffle Rating 2120Analysis
White to move — find the best continuation
28. Fork: queen to c2 (d2)Shuffle Rating 2227Analysis
Black to move — find the best continuation

Review

29. Mate in 3: rook to c2 (c1·2)Shuffle Rating 1980Analysis
White to move — find the best continuation
30. Mate in 2: rook to h6 (g6·2)Shuffle Rating 1884Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 903 →