Practise the first step of CFOP with the 3×3 White Cross Trainer. Paste your own scramble or generate one that takes an exact number of moves to solve the cross. Apply the scramble with white on top and green in front, then choose where you want to solve the cross. Select Find shortest cross and hold your cube as shown under Starting Grip before making the first move. Try solving it yourself, then step through the solution on the cube preview to see how each move brings the four white edges into place and lines up their side colours with the matching centres.