Queens Grid

11×11 Queens Puzzles

1,989 boards at this size, each needing 11 queens: one per row, one per column, one per colour region, none touching. They run from 11 to 32 deductions.

11 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 11x11 board split into 11 colour regions, needing 11 queens: one per row, one per column, one per region, none touching. Regions run from 1 to 51 cells.

By difficulty

How this board is solved

Solving this 11x11 board takes 11 deductions and needs only the basic deductions, drawing on 2 distinct techniques. The first queen you can place for certain is B1. The queens resolve in the order B1 → K3 → E8 → F11 → A4 → C6 → D10 → H9 → G7 → I2 → J5. Every step follows by logic, so you never have to guess.

Techniques this board needs

Full solution, step by step (11 deductions)
  1. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at B1.

  2. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at K3.

  3. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at E8.

  4. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at F11.

  5. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at A4.

  6. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at C6.

  7. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at D10.

  8. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H9.

  9. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at G7.

  10. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at I2.

  11. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at J5.

Answer: queens at B1, K3, E8, F11, A4, C6, D10, H9, G7, I2, J5.