Pick a puzzle
4x4
BEGINNER · 4 × 4
How to solve a 4x4
Build the centres, pair up the edges, then solve it like a 3x3. Plus two parity formulas for what a 3x3 never shows.
Build the centres, pair up the edges, then solve it like a 3x3. Plus two parity formulas for what a 3x3 never shows.