Queens Grid

Daily Queens Puzzle — March 21, 2026

Saturday · 13×13 · Tough · Easy · 16 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 16 deductions and needs only the basic deductions, drawing on 3 distinct techniques. The first queen you can place for certain is A4. The queens resolve in the order A4 → K2 → I5 → L6 → J10 → H7 → B11 → G9 → M8 → C13 → D1 → E3 → F12. Every step follows by logic, so you never have to guess.

Techniques this board needs

Full solution, step by step (16 deductions)
  1. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at A4.

  2. Region line lock essential

    Region line lock. This colour must use column 2, so nothing else can. This reasons over column 2. Rules out B1, B2, B6, B8, B9, B10, B12, B13.

  3. Region line lock essential

    Region line lock. This colour must use row 1, so nothing else can. This reasons over row 1. Rules out E1, F1, G1, H1, I1, J1, K1, L1 and 1 more.

  4. Forced queen essential

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

  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 F3, G3, H3, I3, M3.

  6. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at I5.

  7. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at L6.

  8. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at J10.

  9. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H7.

  10. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at B11.

  11. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at G9.

  12. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at M8.

  13. Forced queen essential

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

  14. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at D1.

  15. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at E3.

  16. Forced queen essential

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

Answer: queens at A4, K2, I5, L6, J10, H7, B11, G9, M8, C13, D1, E3, F12.