Queens Grid

Daily Queens Puzzle — July 26, 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 50 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 G2. The queens resolve in the order G2 → E6 → H5 → O4 → F12 → B10 → A3 → D15 → I7 → C8 → L14 → K11 → J1 → N13 → M9. 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 G2.

  2. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at E6.

  3. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H5.

  4. Region line lock essential

    Region line lock. This colour must use row 1, so nothing else can. This reasons over row 1. Rules out A1, B1, C1, D1, L1, M1, N1, O1.

  5. Region line lock essential

    Region line lock. This colour must use row 3, so nothing else can. This reasons over row 3. Rules out C3, D3, I3, J3, K3, L3, M3, N3 and 1 more.

  6. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at O4.

  7. Region line lock essential

    Region line lock. This colour must use column 6, so nothing else can. This reasons over column 6. Rules out F8, F9, F10, F13, F14, F15.

  8. Region line lock essential

    Region line lock. This colour must use row 11, so nothing else can. This reasons over row 11. Rules out A11, B11, C11, D11, F11, I11, J11, M11 and 1 more.

  9. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at F12.

  10. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out K10, L10.

  11. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out K14.

  12. Multi-region group lock intermediate

    Multi-region group lock. 3 colours fit in only 3 rows, reserving them. This reasons over row 13 and row 14 and row 15. Rules out C13, D13, I13, B14, C14, D14, I14, J14 and 1 more.

  13. Forced queen essential

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

  14. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at A3.

  15. Region line lock essential

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

  16. Forced queen essential

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

  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 C8.

  19. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at L14.

  20. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at K11.

  21. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at J1.

  22. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at N13.

  23. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at M9.

Answer: queens at G2, E6, H5, O4, F12, B10, A3, D15, I7, C8, L14, K11, J1, N13, M9.