Online since 2002. The most comprehensive site for all around twisty puzzles.

Mizunuma Masanori and Watanabe Hiroyuki
4x4 (Juegos De Bolsillo)Geyper version of Rack 'Em Up.
Rack 'Em Up (Milton Bradley)Milton Bradley version. Organize the 16 pieces into rows.
Rack 'Em Up (Tomy)Tomy version. Organize the 16 thingies into rows.

Row by RowOrganize pieces in rows or columns.
Tsvetnaia GolovolomkaA version of "row by row" from the former soviet union.

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