About

Rack'em Up is a puzzle manufactured by Tomy. It consists of an array of 4 rows which each contain when solved 4 round pieces and a blank space. Tilting the puzzle left or right causes the pieces in every row containing a blank space to slide to the left or right. The pieces cannot slide up and down because the rows are separated by thin walls. The left or right column of the puzzle can be moved up one row, or down one row (so both columns have three positions - up, centre, and down). Shifting these columns allows the pieces and the blank spaces to change rows, and mix the puzzle up completely. There are 4 pieces of each of the colours green, blue, yellow, and red. In the solved position each row has only pieces of one colour. The puzzle is closely related to Row by Row, also by Tomy. The main difference that influences gameplay is the number of blank spaces. It was invented by Mizunuma Masanori and Watanabe Hiroyuki, and covered by the same patent as Row By Row, patented by Tomy on 13 November 1984 (filed 7 May 1982), US 4,482,154. If your browser supports JavaScript, then you can play Rack'em Up by clicking the link below: