From Daisy Chain Apps

The blog.

Notes from the studio behind Sudoku+: why we make games, and how to play them.

How Killer Sudoku works

No starting digits, only cages and their sums. Here is how to read a Killer board, and three moves that solve most of it.

Choose your kind of Sudoku.

Classic, Killer, Butterfly and Mini, in one app for iPhone.

Try a puzzle