Queens Grid

Daily Queens Puzzle — March 31, 2026

Tuesday · 9×9 · Easy · Medium · 16 deductions

9 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 9x9 board split into 9 colour regions, needing 9 queens: one per row, one per column, one per region, none touching. Regions run from 2 to 16 cells.

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

How this board is solved

Solving this 9x9 board takes 16 deductions and needs the intermediate group-lock techniques, drawing on 5 distinct techniques. It opens on row 4, ruling cells out before any queen goes down. The queens resolve in the order G4 → H6 → F1 → C3 → A2 → B9 → I8 → E7 → D5. Every step follows by logic, so you never have to guess.

Techniques this board needs

Full solution, step by step (16 deductions)
  1. Region line lock essential

    Region line lock. This colour must use row 4, so nothing else can. This reasons over row 4. Rules out A4, B4, C4, D4, E4, F4, I4.

  2. Region line lock essential

    Region line lock. This colour must use column 8, so nothing else can. This reasons over column 8. Rules out H1, H2, H3, H4, H7, H8, H9.

  3. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at G4.

  4. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H6.

  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 I1, I2, I3.

  6. Forced queen essential

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

  7. Multi-region group lock intermediate

    Multi-region group lock. 3 colours fit in only 3 rows, reserving them. This reasons over row 8 and row 9 and row 7. Rules out B8, B7, D7.

  8. Region line lock essential

    Region line lock. This colour must use row 5, so nothing else can. This reasons over row 5. Rules out A5, B5, C5.

  9. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out B3.

  10. Two-region group lock intermediate

    Two-region group lock. 2 colours fit in only 2 columns, reserving them. This reasons over column 4 and column 5. Rules out D2, D3, D9, E3.

  11. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at C3.

  12. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at A2.

  13. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at B9.

  14. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at I8.

  15. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at E7.

  16. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at D5.

Answer: queens at G4, H6, F1, C3, A2, B9, I8, E7, D5.