Ключевые слова: abstract, activity, ambiance, assembly, at least, challenge, cognitive, contrast, craft, creativity, dark, design, detail, dimensional, educational, engage, enjoy, entertainment, environment, explore, floor, focus, fun, game, geometry, hobby, interlocking, intricate, leisure, light, material, pattern, pieces, play, puzzle, relaxation, representation, shadows, skill, smooth, strategy, structure, surface, tactile, texture, visual, vivid, workspace,