Free cells: These are definitely the four open cells in the highest still left corner in the game. Any playable card may be moved below to assist you open up new playing cards to play and also to sequence playing cards. Indeed, you can find much more precise vehicle simulators, https://docs.google.com/spreadsheets/d/1Tak-f2h2XPlqfAadcaKtSCO1_jualW12UK6aeOH-v5U/edit#gid=0