the rules are simple. use any rotation system. allowable randmizers. memoryless (not recomended), history, or 7 piece bag. (seperate leaderboards wil be kept for the different randomizers) Gravity. 0g or higher. no more than 3 previews and hold. TDS and DTET users, sorry, you got too many previews to work with. You must clear ONLY Tetrises. If you clear a non tetris, the challenge ends. Memory 6 roll zaphod77:203 tetrises:ti-ars, 1/256 G johnberhenry:17 tetrises:SRS:0G Bag jujube:50 tetrises:SRS,20g Memoryless Nobody that brave. btw, that 39 tetris score is NOT my best. but i don't have proof of it. I will do a better one for history 6 rolls.