Daily Queens Puzzle — September 27, 2026
15 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 15x15 board split into 15 colour regions, needing 15 queens: one per row, one per column, one per region, none touching. Regions run from 1 to 38 cells.
The daily board is the same for everyone and gets harder as the week goes on: Sunday is set to toughest. Every daily puzzle has one solution and needs no guessing.
How this board is solved
Solving this 15x15 board takes 21 deductions and needs the intermediate group-lock techniques, drawing on 5 distinct techniques. The first queen you can place for certain is C10. The queens resolve in the order C10 → N14 → H13 → B3 → A1 → J2 → D12 → I4 → E5 → O6 → M8 → K7 → L11 → G9 → F15. Every step follows by logic, so you never have to guess.
Techniques this board needs
Full solution, step by step (21 deductions)
- Single-cell region essential
Single-cell region. This colour covers only one cell, so its queen goes there. Place a queen at C10.
- Region line lock essential
Region line lock. This colour must use column 5, so nothing else can. This reasons over column 5. Rules out E1, E2, E6, E7, E8, E9, E11, E12 and 3 more.
- Region line lock essential
Region line lock. This colour must use row 15, so nothing else can. This reasons over row 15. Rules out A15, B15, D15, I15, J15, K15, L15, M15 and 2 more.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at N14.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at H13.
- Shared diagonal neighbour intermediate
Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out K2.
- Shared diagonal neighbour intermediate
Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out D4, F4.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at B3.
- Shared diagonal neighbour intermediate
Shared diagonal neighbour. Every remaining option for this colour touches these cells, so they are out. Rules out D5, F5.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at A1.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at J2.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at D12.
- Two-region group lock intermediate
Two-region group lock. 2 colours fit in only 2 columns, reserving them. This reasons over column 6 and column 7. Rules out F6, F8, F9, G4, G5, G6, G7, G8.
- Forced queen essential
Forced queen. This colour has one legal cell left, 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 E5.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at O6.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at M8.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at K7.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at L11.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at G9.
- Forced queen essential
Forced queen. This colour has one legal cell left, so its queen goes there. Place a queen at F15.
Answer: queens at C10, N14, H13, B3, A1, J2, D12, I4, E5, O6, M8, K7, L11, G9, F15.