Queens Grid

Daily Queens Puzzle — September 6, 2026

Sunday · 15×15 · Toughest · Hard · 19 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 35 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 19 deductions and needs expert techniques, including testing a queen, drawing on 5 distinct techniques. The first queen you can place for certain is D3. The queens resolve in the order D3 → J10 → C15 → E1 → N14 → A13 → O9 → M6 → H8 → F7 → I2 → B4 → K5 → L11 → G12. Every step follows by logic, so you never have to guess.

Techniques this board needs

Full solution, step by step (19 deductions)
  1. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at D3.

  2. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at J10.

  3. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at C15.

  4. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at E1.

  5. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at N14.

  6. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at A13.

  7. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at O9.

  8. Forced queen essential

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

  9. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H8.

  10. Region line lock essential

    Region line lock. This colour must use column 2, so nothing else can. This reasons over column 2. Rules out B5.

  11. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at F7.

  12. Two-region group lock intermediate

    Two-region group lock. 2 colours fit in only 2 rows, reserving them. This reasons over row 11 and row 12. Rules out B11.

  13. Ruled out either way expert

    Ruled out either way. These cells are ruled out no matter where this colour's queen goes. Rules out K12, L12.

  14. Region line lock essential

    Region line lock. This colour must use column 7, so nothing else can. This reasons over column 7. Rules out G2, G4, G5.

  15. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at I2.

  16. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at B4.

  17. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at K5.

  18. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at L11.

  19. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at G12.

Answer: queens at D3, J10, C15, E1, N14, A13, O9, M6, H8, F7, I2, B4, K5, L11, G12.