Queens Grid

Daily Queens Puzzle — October 21, 2026

Wednesday · 10×10 · Steady · Medium · 15 deductions

10 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 10x10 board split into 10 colour regions, needing 10 queens: one per row, one per column, one per region, none touching. Regions run from 1 to 29 cells.

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

How this board is solved

Solving this 10x10 board takes 15 deductions and needs the intermediate group-lock techniques, drawing on 5 distinct techniques. The first queen you can place for certain is D2. The queens resolve in the order D2 → C8 → H3 → B1 → I5 → J10 → G6 → A4 → E7 → F9. Every step follows by logic, so you never have to guess.

Techniques this board needs

Full solution, step by step (15 deductions)
  1. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at D2.

  2. Single-cell region essential

    Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at C8.

  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 A1, G1, H1, I1, J1.

  4. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H3.

  5. Region line lock essential

    Region line lock. This colour must use row 7, so nothing else can. This reasons over row 7. Rules out A7, G7, I7, J7.

  6. Region line lock essential

    Region line lock. This colour must use row 9, so nothing else can. This reasons over row 9. Rules out A9, G9, I9, J9.

  7. Line uses one region intermediate

    Line uses one region. 1 columns can only be filled by 1 colours, using them up. This reasons over column 1. Rules out B4, B5, B6.

  8. Line uses one region intermediate

    Line uses one region. 1 columns can only be filled by 1 colours, using them up. This reasons over column 10. Rules out B10, E10, F10, G10, I6, I10.

  9. Last cell in a line essential

    Last cell in a line. Column 2 has one legal cell left, so its queen goes there. Place a queen at B1. This reasons over column 2.

  10. Last cell in a line essential

    Last cell in a line. Column 9 has one legal cell left, so its queen goes there. Place a queen at I5. This reasons over column 9.

  11. Forced queen essential

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

  12. Last cell in a line essential

    Last cell in a line. Column 7 has one legal cell left, so its queen goes there. Place a queen at G6. This reasons over column 7.

  13. Forced queen essential

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

  14. Forced queen essential

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

  15. Forced queen essential

    Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at F9.

Answer: queens at D2, C8, H3, B1, I5, J10, G6, A4, E7, F9.