Queens Grid

Daily Queens Puzzle — March 13, 2026

Friday · 12×12 · Hard · Easy · 14 deductions

12 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 12x12 board split into 12 colour regions, needing 12 queens: one per row, one per column, one per region, none touching. Regions run from 1 to 49 cells.

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

How this board is solved

Solving this 12x12 board takes 14 deductions and needs only the basic deductions, drawing on 4 distinct techniques. The first queen you can place for certain is D4. The queens resolve in the order D4 → I7 → H11 → C12 → B8 → A10 → G9 → F6 → L5 → K3 → J1 → E2. Every step follows by logic, so you never have to guess.

Techniques this board needs

Full solution, step by step (14 deductions)
  1. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at D4.

  2. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at I7.

  3. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at H11.

  4. Single-cell region essential

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

  5. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at B8.

  6. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at A10.

  7. Region line lock essential

    Region line lock. This colour must use column 11, so nothing else can. This reasons over column 11. Rules out K1, K5, K6, K9.

  8. Region line lock essential

    Region line lock. This colour must use column 10, so nothing else can. This reasons over column 10. Rules out J3, J5, J9.

  9. Forced queen essential

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

  10. Forced queen essential

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

  11. Last cell in a line essential

    Last cell in a line. Row 5 has one legal cell left, so its queen goes there. Place a queen at L5. This reasons over row 5.

  12. Last cell in a line essential

    Last cell in a line. Row 3 has one legal cell left, so its queen goes there. Place a queen at K3. This reasons over row 3.

  13. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at J1.

  14. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at E2.

Answer: queens at D4, I7, H11, C12, B8, A10, G9, F6, L5, K3, J1, E2.