Puzzles made otherwise.

We distil what makes classic puzzles compelling, question the limits they inherited, and rebuild them for new forms of play.

Contrary, not arbitrary.

We do not reject convention for sport. We distinguish the essential from the inherited, then explore what else the underlying idea can become.

New challenges emerge when the puzzle itself is allowed to change form—through new structures, rhythms, relationships and consequences—not merely through ever more obscure routes to completion.

01 / Distil

The idea at its heart

We strip each puzzle back to what makes it worth playing.

02 / Question

Rules must earn their place

We keep the rules that make a puzzle interesting, and drop the ones that are just tradition.

03 / Rebuild

Keep what matters, change the rest

Once we know what makes a puzzle tick, we're free to rebuild everything around it — the shape, the pace, what happens when you slip.

04 / Play

Fun is not a concession

Fun isn't something we add at the end. It's the point — the reason the puzzle's worth your time.

Jamdoku

Sudoku, exploded: a catalogue of forms, features and consequences. Jamdoku turns one familiar puzzle into a family of distinctive grids, variants and ways to play.