Brainstorming 2D is a puzzle game. In each slider puzzle, you will see a grid with colored grid edges with squares inside these borders. The squares are the same color as the grid edges. The number of colors may vary. Each slider puzzle aims to get rid of all blocks locked within the edges of the grid. 2D puzzle game, sliding puzzle, color matching, kids game, brain teaser, spatial reasoning, puzzle game for kids, no blood, matching game, strategy game, online puzzle, grid puzzle, color matching, brain training, puzzle challenge, kids activity