The Twister pattern is confusing at times until you "get" how the pattern works...you know the top row, side rows and bottom rows always have a piece of the border fabric. The insides match on each block with the pieces that surround them. My first twister I sewed one row at a time. I have taught this class and if they didn't sew them one row at a time I suggested they stack them and mark each row or use sticky dots and number them by row and or block. I have made probably 15/20 twisters now and just stack as I cut and sew all after its cut....its a fantastic pattern.