A 3×3×3 with no centre pieces at all — you can see clean through the middle of the cube. Plays like the classic cube, but with no fixed centres to guide your colour scheme.
Rules
Swipe a coloured sticker in the direction you want that layer to turn, or use the lettered U/D/L/R/F/B buttons for exact quarter-turns.
Drag anywhere that isn’t a sticker to orbit the camera and look straight through the cube’s hollow centre.
The arrow buttons rotate the whole cube in place (this doesn’t count as a move).
Press "Scramble" to mix the cube, then restore all six faces to a single colour each to win — watch for “parity” states that look nearly solved but can’t be finished the way a normal 3×3 can.
Tips
With no centres, pick which colour goes where from the corners — and beware: it can look one swap away yet be in a “parity” state a 3×3 can never reach.