a close-up photo of a partially solved rubik's cube with vibrant blue, green, red, and yellow tiles

furniture lighting pattern drawing design circle number yellow gadget brand glass green font text line art toy rubik cube puzzle game logic brain colorful toy fun strategy learning problem solving thinking education color recreation leisure creative challenge play skill intelligence mind activity white background bright vibrant tiles blocks pattern closeup kids abstract smart entertainment piece unsolved focus geometry cognitive classic vintage visual multitask retro cube art iconic tactil