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15Rubik's cube· all 15▼
←→ Made by @elvar_official
Why doesn't a cube of 26 loose pieces fall apart when you turn it? Press the steps, or wait and the machine runs them by itself.×3
CUBE MAT160 × 160 · NON-SLIPSCRAMBLE #1F2 L' D B2 R' U2F L2 D' B R2 U'L F' D2 B' R U218 TURNS · WHITE UPGREEN FRONT0.00CUBE TIMER
turn–turns applied0out of place0/48pieces26 + corepositions43,252,003,274,489,856,000God's number20 turns
The big idea: only the 6 centres are fixed, each screwed to an arm of the core. The 12 edges and 8 corners have feet that hook under their neighbours, so every piece holds the others in. That allows 43,252,003,274,489,856,000 positions, and every one of them is at most 20 turns from solved (proven in 2010). Ernő Rubik built the first one out of wood in 1974.
Colour

Space or Enter runs the next step · ← → switch machines
Made by @elvar_official · drawn in code with Claude Code on the iso kit from wheresryan22/anatomy (MIT)