Marble solitaire - logic games is the classic game of " marble solitaire " or " peg ". the purpose of the logic game is to make all marbles disappear and leave only one marble. this is an amazing brain teaser because when there are more marbles on the board the riddle becomes harder. the game has 45 boards all arranged differently so you move from easier boards to more harder boards. we have many more logic games so check them out. they are an amazing way to activate your brain and increase your IQ.