about unfurl

what it is

unfurl is a daily puzzle on a 4x4 board of colored, arrowed nodes. tap one and it turns, and the turn passes along the arrows, painting each node it reaches with the tapped node's color. make all sixteen match in as few moves as you can.

everyone gets the same puzzle each day, and each of its three colors is scored on its own. see the rules and the strategy guide.

how the puzzles are made

every board is generated ahead of time and searched exhaustively by computer, so the fewest moves for each color is known: the optimal score. difficulty climbs through the week (gentler monday to thursday, harder friday and saturday, hardest sunday), and nothing needs more than 4 moves.

the rules stay fixed. any new way to play would be its own mode, so scores stay comparable.

who makes it

i'm John McGuinness, a product engineer based in Denver, and the owner and operator of Quatrefoil Studio, LLC.

credits

built on open-source software and fonts: see their licenses.

thanks to Simon Goellner for his holographic card demos, which inspired unfurl's packs.