Queens Grid

Daily Queens Puzzle — May 31, 2026

Sunday · 13×13 · Toughest · Medium · 22 deductions

13 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 13x13 board split into 13 colour regions, needing 13 queens: one per row, one per column, one per region, none touching. Regions run from 1 to 45 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 13x13 board takes 22 deductions and needs the intermediate group-lock techniques, drawing on 6 distinct techniques. The first queen you can place for certain is B7. The queens resolve in the order B7 → D8 → M3 → K2 → L12 → G10 → E11 → F1 → I9 → J6 → H4 → A5 → C13. 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 B7.

  2. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at D8.

  3. Region line lock essential

    Region line lock. This colour must use row 2, so nothing else can. This reasons over row 2. Rules out A2, C2, E2, F2, G2, H2, I2, J2 and 1 more.

  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, C1, G1, H1, I1, J1, K1, L1 and 1 more.

  5. Region line lock essential

    Region line lock. This colour must use column 9, so nothing else can. This reasons over column 9. Rules out I3, I4, I5, I6, I13.

  6. Region line lock essential

    Region line lock. This colour must use row 12, so nothing else can. This reasons over row 12. Rules out A12, C12, E12, F12, G12, H12, I12, J12 and 1 more.

  7. Region line lock essential

    Region line lock. This colour must use row 13, so nothing else can. This reasons over row 13. Rules out E13, F13, G13, H13, J13, K13, L13, M13.

  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, C11, G11, H11, I11, J11, K11, L11 and 1 more.

  9. Line uses one region intermediate

    Line uses one region. 1 columns can only be filled by 1 colours, using them up. This reasons over column 10. Rules out F9, G9, H5, H6, K5, K6, K9, K10 and 8 more.

  10. Last cell in a line essential

    Last cell in a line. Column 13 has one legal cell left, so its queen goes there. Place a queen at M3. This reasons over column 13.

  11. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at K2.

  12. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at L12.

  13. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out E10, F10.

  14. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out H9, J9, H10, J10.

  15. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at G10.

  16. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at E11.

  17. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at F1.

  18. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at I9.

  19. Last cell in a line essential

    Last cell in a line. Row 6 has one legal cell left, so its queen goes there. Place a queen at J6. This reasons over row 6.

  20. Last cell in a line essential

    Last cell in a line. Column 8 has one legal cell left, so its queen goes there. Place a queen at H4. This reasons over column 8.

  21. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at A5.

  22. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at C13.

Answer: queens at B7, D8, M3, K2, L12, G10, E11, F1, I9, J6, H4, A5, C13.