Daily Queens Puzzle — September 10, 2026
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 26 cells.
The daily board is the same for everyone and gets harder as the week goes on: Thursday is set to tricky. Every daily puzzle has one solution and needs no guessing.
How this board is solved
Solving this 10x10 board takes 13 deductions and needs expert techniques, including testing a queen, drawing on 6 distinct techniques. The first queen you can place for certain is F1. The queens resolve in the order F1 → I4 → B3 → J6 → H8 → D2 → E9 → C10 → G5 → A7. Every step follows by logic, so you never have to guess.
Techniques this board needs
- Single-cell region
- Forced queen
- Last cell in a line
- Region line lock
- Split-line region lock
- Ruled out either way
Full solution, step by step (13 deductions)
- Single-cell region essential
Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at F1.
- Single-cell region essential
Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at I4.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at B3.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at J6.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H8.
- Last cell in a line essential
Last cell in a line. Row 2 has one legal cell left, so its queen goes there. Place a queen at D2. This reasons over row 2.
- Region line lock essential
Region line lock. This colour must use column 1, so nothing else can. This reasons over column 1. Rules out A9, A10.
- Split-line region lock intermediate
Split-line region lock. 2 colours fit in only 2 rows, reserving them. This reasons over row 5 and row 7. Rules out E7.
- Ruled out either way expert
Ruled out either way. These cells are ruled out no matter where this colour's queen goes. Rules out E10.
- Last cell in a line essential
Last cell in a line. Column 5 has one legal cell left, so its queen goes there. Place a queen at E9. This reasons over column 5.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at C10.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at G5.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at A7.
Answer: queens at F1, I4, B3, J6, H8, D2, E9, C10, G5, A7.