Queens Grid

Daily Queens Puzzle — March 7, 2026

Saturday · 13×13 · Tough · Medium · 17 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 30 cells.

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

How this board is solved

Solving this 13x13 board takes 17 deductions and needs the intermediate group-lock techniques, drawing on 4 distinct techniques. The first queen you can place for certain is I1. The queens resolve in the order I1 → C12 → A13 → D3 → E8 → M7 → F6 → B9 → H10 → J11 → L2 → G4 → K5. Every step follows by logic, so you never have to guess.

Techniques this board needs

Full solution, step by step (17 deductions)
  1. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at I1.

  2. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at C12.

  3. Forced queen essential

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

  4. Region line lock essential

    Region line lock. This colour must use column 2, so nothing else can. This reasons over column 2. Rules out B2, B3, B4, B5, B6, B10.

  5. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at D3.

  6. Forced queen essential

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

  7. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at M7.

  8. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at F6.

  9. Forced queen essential

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

  10. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H10.

  11. Region line lock essential

    Region line lock. This colour must use column 11, so nothing else can. This reasons over column 11. Rules out K2, K11.

  12. Region line lock essential

    Region line lock. This colour must use column 12, so nothing else can. This reasons over column 12. Rules out L11.

  13. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at J11.

  14. Shared diagonal neighbour intermediate

    Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out L4, L5.

  15. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at L2.

  16. Forced queen essential

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

  17. Forced queen essential

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

Answer: queens at I1, C12, A13, D3, E8, M7, F6, B9, H10, J11, L2, G4, K5.