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Day 330: 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: knight to g6 (f4)Shuffle Rating 920Analysis
White to move — find the best continuation
2. Winning blow: knight to c6 (e5)Shuffle Rating 920Analysis
White to move — find the best continuation
3. Winning blow: queen to d8 (a5)Shuffle Rating 920Analysis
White to move — find the best continuation
4. Winning blow: rook to d8 (e8)Shuffle Rating 920Analysis
White to move — find the best continuation
5. Winning blow: queen to h8 (f8)Shuffle Rating 920Analysis
White to move — find the best continuation
6. Attack on the uncastled king: knight to f7 (g5·24)Shuffle Rating 920Analysis
White to move — find the best continuation
7. Winning blow: rook to c8 (e8)Shuffle Rating 920Analysis
White to move — find the best continuation
8. Winning blow: queen to f7 (f4)Shuffle Rating 920Analysis
White to move — find the best continuation
9. Winning blow: queen to e6 (a6)Shuffle Rating 920Analysis
White to move — find the best continuation
10. Winning blow: knight to b6 (c4)Shuffle Rating 920Analysis
White to move — find the best continuation

Core set

11. Attack on the uncastled king: rook to c3 (c1·4)Shuffle Rating 1150Analysis
White to move — find the best continuation
12. Winning blow: queen to h8 (h7·7)Shuffle Rating 1150Analysis
White to move — find the best continuation
13. Attack on the uncastled king: knight to g8 (e7)Shuffle Rating 1200Analysis
White to move — find the best continuation
14. Winning blow: pawn to d6 (c5·8)Shuffle Rating 1200Analysis
White to move — find the best continuation
15. Attack on the uncastled king: pawn to h7 (g6·3)Shuffle Rating 1200Analysis
White to move — find the best continuation
16. Winning blow: knight to b6 (c4·5)Shuffle Rating 1060Analysis
White to move — find the best continuation
17. Winning blow: pawn to f3 (g2·15)Shuffle Rating 1060Analysis
White to move — find the best continuation
18. Winning blow: bishop to d4 (g1·7)Shuffle Rating 1060Analysis
White to move — find the best continuation
19. Winning blow: rook to d1 (g1·2)Shuffle Rating 1060Analysis
White to move — find the best continuation
20. Attack on the uncastled king: king to c2 (d1·16)Shuffle Rating 1110Analysis
White to move — find the best continuation
21. Attack on the uncastled king: king to c2 (b1·11)Shuffle Rating 1060Analysis
White to move — find the best continuation
22. Attack on the uncastled king: queen to d6 (a3·2)Shuffle Rating 1090Analysis
White to move — find the best continuation
23. Attack on the uncastled king: pawn to g4 (g2)Shuffle Rating 1110Analysis
White to move — find the best continuation
24. Attack on the uncastled king: rook to h8 (h7·4)Shuffle Rating 1060Analysis
White to move — find the best continuation
25. Attack on the uncastled king: bishop to h5 (f3·7)Shuffle Rating 1090Analysis
White to move — find the best continuation

Challenge

26. Winning blow: bishop to f4 (d2·3)Shuffle Rating 1250Analysis
White to move — find the best continuation
27. Winning blow: rook to e6 (d6·2)Shuffle Rating 1200Analysis
White to move — find the best continuation
28. Fork: knight to a6Shuffle Rating 1332Analysis
White to move — find the best continuation

Review

29. Winning blow: king to d1 (c1)Shuffle Rating 780Analysis
White to move — find the best continuation
30. Attack on the uncastled king: knight to c6 (e7)Shuffle Rating 920Analysis
White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!

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