Parity Lines Sudoku

  • Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each of the rows, columns and the nine outlined 3x3 regions.
  • Digits along each marked line are either all odd or all even.

    • Parity Lines Sudoku

    Sudokus that no one can solve

    Sudokus that no one can solve, not only including Sudokus which are very difficult but also those that no one has tried to solve.

     

    27 October 2025
    Parity Lines Sudoku 27 October 2025
    27 October 2025

     

    03 November 2025
    Parity Lines Sudoku 03 November 2025
    03 November 2025

     

    07 November 2025
    Parity Lines Sudoku 07 November 2025
    07 November 2025

     

    07 November 2025
    Parity Lines Sudoku 07 November 2025
    07 November 2025

     

    11 November 2025
    Parity Lines Sudoku 11 November 2025
    11 November 2025

     

    12 November 2025
    Parity Lines Sudoku 12 November 2025
    12 November 2025

     

    16 November 2025
    Parity Lines Sudoku 16 November 2025
    16 November 2025

     

    04 December 2025
    Parity Lines Sudoku 04 December 2025
    04 December 2025

     

    08 December 2025
    Parity Lines Sudoku 08 December 2025
    08 December 2025

     

    10 December 2025
    Parity Lines Sudoku 10 December 2025
    10 December 2025

     

    12 December 2025
    Parity Lines Sudoku 12 December 2025
    12 December 2025

     

    14 December 2025
    Parity Lines Sudoku 14 December 2025
    14 December 2025

     

    20 December 2025
    Parity Lines Sudoku 20 December 2025
    20 December 2025

     

    22 December 2025
    Parity Lines Sudoku 22 December 2025
    22 December 2025

     

    27 December 2025
    Parity Lines Sudoku 27 December 2025
    27 December 2025

     

    30 December 2025
    Parity Lines Sudoku 30 December 2025
    30 December 2025

     

    09 January 2026
    Parity Lines Sudoku 09 January 2026
    09 January 2026

     

    11 January 2026
    Parity Lines Sudoku 11 January 2026
    11 January 2026

     

    13 January 2026
    Parity Lines Sudoku 13 January 2026
    13 January 2026

     

    13 January 2026
    Parity Lines Sudoku 13 January 2026
    13 January 2026

     

    14 January 2026
    Parity Lines Sudoku 14 January 2026
    14 January 2026

     

    14 January 2026
    Parity Lines Sudoku 14 January 2026
    14 January 2026

     

    17 January 2026
    Parity Lines Sudoku 17 January 2026
    17 January 2026

     

    19 January 2026
    Parity Lines Sudoku 19 January 2026
    19 January 2026

     

    20 January 2026
    Parity Lines Sudoku 20 January 2026
    20 January 2026

     

    26 January 2026
    Parity Lines Sudoku 26 January 2026
    26 January 2026

     

    28 January 2026
    Parity Lines Sudoku 28 January 2026
    28 January 2026

     

    29 January 2026
    Parity Lines Sudoku 29 January 2026
    29 January 2026

     

    29 January 2026
    Parity Lines Sudoku 29 January 2026
    29 January 2026

     

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