Sujiken

  • 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.
  • Sujiken (from Japanese "sujikai", literally "diagonal") is a variation of Sudoku . The puzzle consists of a triangular grid of cells containing digits from 1 to 9. The objective is to fill a grid with digits so that each cell contains a digit and no digit is repeated in any column, row and diagonal in any direction. Also, no digit occurs twice in any of the three larger 3 x 3 square regions and any of the three larger triangular regions enclosed by thick borders.

    • Sujiken

    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
    Sujiken 27 October 2025
    27 October 2025

     

    01 November 2025
    Sujiken 01 November 2025
    01 November 2025

     

    06 November 2025
    Sujiken 06 November 2025
    06 November 2025

     

    06 November 2025
    Sujiken 06 November 2025
    06 November 2025

     

    16 November 2025
    Sujiken 16 November 2025
    16 November 2025

     

    19 November 2025
    Sujiken 19 November 2025
    19 November 2025

     

    24 November 2025
    Sujiken 24 November 2025
    24 November 2025

     

    28 November 2025
    Sujiken 28 November 2025
    28 November 2025

     

    30 November 2025
    Sujiken 30 November 2025
    30 November 2025

     

    03 December 2025
    Sujiken 03 December 2025
    03 December 2025

     

    04 December 2025
    Sujiken 04 December 2025
    04 December 2025

     

    10 December 2025
    Sujiken 10 December 2025
    10 December 2025

     

    11 December 2025
    Sujiken 11 December 2025
    11 December 2025

     

    18 December 2025
    Sujiken 18 December 2025
    18 December 2025

     

    18 December 2025
    Sujiken 18 December 2025
    18 December 2025

     

    18 December 2025
    Sujiken 18 December 2025
    18 December 2025

     

    23 December 2025
    Sujiken 23 December 2025
    23 December 2025

     

    25 December 2025
    Sujiken 25 December 2025
    25 December 2025

     

    28 December 2025
    Sujiken 28 December 2025
    28 December 2025

     

    30 December 2025
    Sujiken 30 December 2025
    30 December 2025

     

    01 January 2026
    Sujiken 01 January 2026
    01 January 2026

     

    04 January 2026
    Sujiken 04 January 2026
    04 January 2026

     

    10 January 2026
    Sujiken 10 January 2026
    10 January 2026

     

    12 January 2026
    Sujiken 12 January 2026
    12 January 2026

     

    14 January 2026
    Sujiken 14 January 2026
    14 January 2026

     

    16 January 2026
    Sujiken 16 January 2026
    16 January 2026

     

    18 January 2026
    Sujiken 18 January 2026
    18 January 2026

     

    20 January 2026
    Sujiken 20 January 2026
    20 January 2026

     

    27 January 2026
    Sujiken 27 January 2026
    27 January 2026

     

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