Game for development of attention of children. The objective of the game is the clearing of a field of multi-coloured blocks, placed on it. The clearing is carried out by addition of blocks so that in one or several directions, (line, the column or diagonal) has appeared more than four blocks. In this case line, column, diagonal or all together will disappear. Each course reduces your score, and the deleting of blocks increases it. Optimally selecting a place and sequence of installation of blocks, so that the number of courses was minimum, you have possibility to pass to the following round and to continue the game.