FIELD: development of logic thinking. SUBSTANCE: game includes flat game field on which marks in the form of squares with designations are applied and game element with mark on one of its sides. Game element is built basically in the form of solid of revolution having at least one rotation axle and mounted for movement over game field. Designations are marked on opposite side or on end face of it. EFFECT: increased entertainment efficiency. 9 cl, 6 dwg
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