Day 75: Absolute pin

Target Rating 702

Lesson of the day

An absolute pin freezes a piece on the line between its own king and your long-range attacker: moving it is simply illegal. The pattern is three units on one straight line — your bishop, rook or queen, an enemy piece, and the enemy king behind it. A pinned piece neither attacks nor defends anything: treat it as if it were off the board. Pile up on it, ideally with a pawn, because running away is against the rules.

Types of the dayAbsolute pin Uncastled king Winning blow

Warm-up

1. Attack on the uncastled king: pawn to d5 (e4·30)Shuffle Rating 780 Analysis

White to move — find the best continuation

2. Attack on the uncastled king: pawn to e5 (d4·35)Shuffle Rating 780 Analysis

White to move — find the best continuation

3. Attack on the uncastled king: rook to d2 (d1)Shuffle Rating 780 Analysis

White to move — find the best continuation

4. Attack on the uncastled king: rook to f8 (f1·3)Shuffle Rating 780 Analysis

White to move — find the best continuation

5. Attack on the uncastled king: pawn to b7 (c6)Shuffle Rating 780 Analysis

White to move — find the best continuation

6. Attack on the uncastled king: knight to b5 (a3·2)Shuffle Rating 780 Analysis

White to move — find the best continuation

7. Attack on the uncastled king: pawn to g3 (h2·6)Shuffle Rating 780 Analysis

White to move — find the best continuation

8. Attack on the uncastled king: pawn to e5 (f4·8)Shuffle Rating 780 Analysis

White to move — find the best continuation

9. Attack on the uncastled king: pawn to b6 (c5·6)Shuffle Rating 780 Analysis

White to move — find the best continuation

10. Attack on the uncastled king: pawn to d4 (e3·8)Shuffle Rating 780 Analysis

White to move — find the best continuation

Core set

11. Winning blow: knight to d6 (c4)Shuffle Rating 920 Analysis

White to move — find the best continuation

12. Winning blow: rook to g6 (g3·2)Shuffle Rating 920 Analysis

White to move — find the best continuation

13. Winning blow: pawn to d6 (e5·5)Shuffle Rating 920 Analysis

White to move — find the best continuation

14. Attack on the uncastled king: rook to e1 (f1)Shuffle Rating 920 Analysis

White to move — find the best continuation

15. Winning blow: bishop to a4 (c2)Shuffle Rating 920 Analysis

White to move — find the best continuation

16. Attack on the uncastled king: pawn to d5 (e4·31)Shuffle Rating 780 Analysis

White to move — find the best continuation

17. Attack on the uncastled king: pawn to c3 (b2·5)Shuffle Rating 780 Analysis

White to move — find the best continuation

18. Attack on the uncastled king: pawn to f5 (e4·20)Shuffle Rating 780 Analysis

White to move — find the best continuation

19. Attack on the uncastled king: bishop to h8 (d4·2)Shuffle Rating 780 Analysis

White to move — find the best continuation

20. Winning blow: bishop to e3 (g1)Shuffle Rating 780 Analysis

White to move — find the best continuation

21. Attack on the uncastled king: rook to f3Shuffle Rating 780 Analysis

White to move — find the best continuation

22. Attack on the uncastled king: pawn to d5 (e4·32)Shuffle Rating 780 Analysis

White to move — find the best continuation

23. Attack on the uncastled king: pawn to c5 (b4·2)Shuffle Rating 780 Analysis

White to move — find the best continuation

24. Attack on the uncastled king: pawn to b3 (a2·8)Shuffle Rating 780 Analysis

White to move — find the best continuation

25. Attack on the uncastled king: knight to c4 (a3)Shuffle Rating 780 Analysis

White to move — find the best continuation

Challenge

26. Attack on the uncastled king: queen to b8 (b2)Shuffle Rating 920 Analysis

White to move — find the best continuation

27. Winning blow: rook to e7Shuffle Rating 920 Analysis

White to move — find the best continuation

28. Attack on the uncastled king: pawn to c3 (b2·22)Shuffle Rating 920 Analysis

White to move — find the best continuation

Review

29. Attack on the uncastled king: pawn to e4 (d3·17)Shuffle Rating 780 Analysis

White to move — find the best continuation

30. Attack on the uncastled king: pawn to d6 (e5·2)Shuffle Rating 780 Analysis

White to move — find the best continuation

Day complete — every puzzle solved. See you tomorrow!