Current puzzle
First Nest
Practice level 1 of 3
— plays & counting
Uniquely solvable boards, generated in your browser.
Filled0 / 16
Entries0
Time00:00
Select an empty square, then a number.
4×4 · 2×2 boxesOne solution ✨
On keyboard: number keys, arrows, Delete to erase, N for pencil notes.
Rows, columns and boxes: 1–4Every number once ✦
Number Nest complete! ✨
Every number belongs.