(a) Solver · step-by-step
The big one. Same reduction, more of everything.
Puzzle
Other puzzles
Your scramble
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3D cube · 10×10
Click a face or use the buttons to turn · drag to rotate
Walkthrough
step 1 / 5Reduction 1
r U r' · U r U' r'
Build each 2×2 (or larger) centre block using wide slice turns.