Play Between Lines Sudoku Online Free

Play Between Lines Sudoku online for free. Digits on each line must be strictly between the values in the circles at each end.

▶ Play Between Lines Sudoku — Free
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How to Play Between Lines Sudoku

  1. Standard Sudoku rules apply.
  2. Lines have circles at both ends. Digits on the line must be strictly between the two circle values.
  3. If circles contain 2 and 8, line digits must be 3, 4, 5, 6, or 7.
💡 Pro Tip
Circles with values close together heavily restrict the line. Circles of 4 and 6 mean only 5 can go on the line.

Frequently Asked Questions

What if both circles end up with the same value?

The line would need to contain digits strictly between two equal values — which is impossible. A valid Between Lines puzzle never has equal endpoints.

Do digits on the line need to be in order?

No — the constraint is only on the value range. The line digits can appear in any order between the two endpoint values.

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▶ Play Between Lines Sudoku