This wonderful Multi-solution puzzle is now double sided. One side has solid colors; just like the original, the other side has fun patterns that turn up the playfulness. Mixe the two sides together and the possible solutions are practically endless. Also now the pieces at 100% plywood, no particle board in our Double sided puzzles. This Playfully Smart design allows for great fun and creativity. Entertain logner with multiple combinations to stimulate creative thinking for advance development. Simple shapes make this puzzle suitable for early developmental stages.