Queens Grid

Daily Queens Puzzle — April 12, 2026

Sunday · 15×15 · Toughest · Medium · 22 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 52 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 22 deductions and needs the intermediate group-lock techniques, drawing on 4 distinct techniques. The first queen you can place for certain is K1. The queens resolve in the order K1 → G11 → B13 → F5 → A10 → J12 → N4 → O2 → L3 → I7 → M6 → C9 → E8 → H14 → D15. Every step follows by logic, so you never have to guess.

Techniques this board needs

Full solution, step by step (22 deductions)
  1. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at K1.

  2. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at G11.

  3. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at B13.

  4. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at F5.

  5. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at A10.

  6. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at J12.

  7. Region line lock essential

    Region line lock. This colour must use column 14, so nothing else can. This reasons over column 14. Rules out N2, N6, N7, N8, N9, N14, N15.

  8. Region line lock essential

    Region line lock. This colour must use column 15, so nothing else can. This reasons over column 15. Rules out O6, O7, O8, O9, O14, O15.

  9. Region line lock essential

    Region line lock. This colour must use column 3, so nothing else can. This reasons over column 3. Rules out C2, C3, C4, C6, C8, C15.

  10. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out N3.

  11. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at N4.

  12. Forced queen essential

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

  13. Region line lock essential

    Region line lock. This colour must use column 12, so nothing else can. This reasons over column 12. Rules out L7, L8, L9, L14, L15.

  14. Region line lock essential

    Region line lock. This colour must use column 13, so nothing else can. This reasons over column 13. Rules out M8, M9, M14, M15.

  15. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out L6.

  16. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at L3.

  17. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at I7.

  18. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at M6.

  19. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at C9.

  20. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at E8.

  21. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H14.

  22. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at D15.

Answer: queens at K1, G11, B13, F5, A10, J12, N4, O2, L3, I7, M6, C9, E8, H14, D15.