TheTetris game instructions mention the seven one-sided tetraminoes in tetris as I, J, L, O, S, T and Z -due to their resembling letters of the alphabet-but players sometimes use other names for the pieces. All are capable of single and double clear. - Details

Books, Games, and Puzzles provides a variety of family friendly, kid safe games, book reviews, and brain teasing puzzles. They also provide you the option to purchase many of the books and games. - Details