Open in the app

Day 436: First-rank tactic

Lesson of the day

The first-rank tactic: enemy pieces that never left their starting rank become targets themselves. Standing shoulder to shoulder, they block each other and are often defended by nobody. Look for a strike along the first or eighth rank — a rook or queen that breaks through harvests the undeveloped pieces. The mistake is treating the back rank as a safe "rear area": in Chess960 it can be the most vulnerable place on the board.

Warm-up

1. Winning blow: king to d1 (d2·2)Shuffle Rating 970Analysis
White to move — find the best continuation
2. Winning blow: king to c2 (d1·3)Shuffle Rating 970Analysis
White to move — find the best continuation
3. Winning blow: queen to b3 (b5)Shuffle Rating 920Analysis
White to move — find the best continuation
4. Winning blow: pawn to f3 (f2)Shuffle Rating 970Analysis
White to move — find the best continuation
5. Attack on the uncastled king: rook to b8 (b1·15)Shuffle Rating 920Analysis
White to move — find the best continuation
6. Winning blow: king to e1 (f1·7)Shuffle Rating 970Analysis
White to move — find the best continuation
7. Winning blow: knight to e7 (f5·11)Shuffle Rating 920Analysis
White to move — find the best continuation
8. Winning blow: king to h1 (g1·2)Shuffle Rating 970Analysis
White to move — find the best continuation
9. Winning blow: knight to b6 (c4·3)Shuffle Rating 920Analysis
White to move — find the best continuation
10. Attack on the uncastled king: knight to c2 (b4)Shuffle Rating 970Analysis
White to move — find the best continuation

Core set

11. Attack on the uncastled king: bishop to d5 (e6·2)Shuffle Rating 1340Analysis
White to move — find the best continuation
12. Attack on the uncastled king: knight to h6 (g4·3)Shuffle Rating 1340Analysis
White to move — find the best continuation
13. Winning blow: knight to h6 (f5·10)Shuffle Rating 1340Analysis
White to move — find the best continuation
14. Attack on the uncastled king: knight to a6 (b4·3)Shuffle Rating 1340Analysis
White to move — find the best continuation
15. Winning blow: knight to e6 (d4·19)Shuffle Rating 1340Analysis
White to move — find the best continuation
16. Attack on the uncastled king: bishop to a4 (d1·14)Shuffle Rating 1250Analysis
White to move — find the best continuation
17. Winning blow: rook to b1 (f1·3)Shuffle Rating 1200Analysis
White to move — find the best continuation
18. Winning blow: rook to g1 (d1)Shuffle Rating 1200Analysis
White to move — find the best continuation
19. Winning blow: queen to a5 (a2·2)Shuffle Rating 1200Analysis
White to move — find the best continuation
20. Winning blow: bishop to f4 (e3·3)Shuffle Rating 1200Analysis
White to move — find the best continuation
21. Winning blow: bishop to b6 (d4·2)Shuffle Rating 1200Analysis
White to move — find the best continuation
22. Winning blow: rook to d1 (h1·4)Shuffle Rating 1200Analysis
White to move — find the best continuation
23. Attack on the uncastled king: pawn to f7 (f6·2)Shuffle Rating 1250Analysis
White to move — find the best continuation
24. Attack on the uncastled king: queen to b5 (f1·3)Shuffle Rating 1250Analysis
White to move — find the best continuation
25. Winning blow: queen to g6 (h5·5)Shuffle Rating 1200Analysis
White to move — find the best continuation

Challenge

26. Winning blow: rook to c7 (c8·6)Shuffle Rating 1340Analysis
White to move — find the best continuation
27. Mate in 3: queen to g5Shuffle Rating 1418Analysis
White to move — find the best continuation
28. Mate in 2: bishop to g7 (c3)Shuffle Rating 1450Analysis
White to move — find the best continuation

Review

29. Mate in 2: rook to c7 (b7)Shuffle Rating 1220Analysis
White to move — find the best continuation
30. Winning blow: queen to f6 (d4·2)Shuffle Rating 1060Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

Day 437 →