Queens Grid

Daily Queens Puzzle — February 8, 2026

Sunday · 15×15 · Toughest · Medium · 23 deductions

15 queens left to place.

Tap once to rule a cell out, twice to place a queen. Right-click marks an exclusion directly. Arrow keys move between cells.

A 15x15 board split into 15 colour regions, needing 15 queens: one per row, one per column, one per region, none touching. Regions run from 1 to 38 cells.

The daily board is the same for everyone and gets harder as the week goes on: Sunday is set to toughest. Every daily puzzle has one solution and needs no guessing.

How this board is solved

Solving this 15x15 board takes 23 deductions and needs the intermediate group-lock techniques, drawing on 5 distinct techniques. The first queen you can place for certain is A8. The queens resolve in the order A8 → H13 → N7 → O2 → F6 → C5 → B10 → I11 → E9 → G15 → J3 → D1 → M12 → L4 → K14. Every step follows by logic, so you never have to guess.

Techniques this board needs

Full solution, step by step (23 deductions)
  1. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at A8.

  2. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at H13.

  3. Region line lock essential

    Region line lock. This colour must use column 5, so nothing else can. This reasons over column 5. Rules out E1, E2, E3, E4, E5, E6, E7, E11 and 3 more.

  4. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out O3.

  5. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out B5.

  6. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out D9, F9, D10, F10.

  7. Two-region group lock intermediate

    Two-region group lock. 2 colours fit in only 2 columns, reserving them. This reasons over column 14 and column 15. Rules out N1, N4, N5, N6, N10, N11, N12, N14 and 11 more.

  8. Two-region group lock intermediate

    Two-region group lock. 2 colours fit in only 2 columns, reserving them. This reasons over column 3 and column 2. Rules out C1, C2, C3, C4, C7, C11, C12, C14 and 9 more.

  9. Two-region group lock intermediate

    Two-region group lock. 2 colours fit in only 2 rows, reserving them. This reasons over row 9 and row 10. Rules out G9, I9, J9, K9, L9, M9, N9, O9 and 6 more.

  10. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at N7.

  11. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at O2.

  12. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at F6.

  13. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at C5.

  14. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at B10.

  15. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at I11.

  16. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at E9.

  17. Region line lock essential

    Region line lock. This colour must use column 4, so nothing else can. This reasons over column 4. Rules out D12, D14, D15.

  18. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at G15.

  19. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at J3.

  20. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at D1.

  21. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at M12.

  22. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at L4.

  23. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at K14.

Answer: queens at A8, H13, N7, O2, F6, C5, B10, I11, E9, G15, J3, D1, M12, L4, K14.