188 challenges in three playing modes on the extra large game board. Discover this extra-large version of our pocket game IQ Puzzler Pro! Multiple levels of brain teasing fun! The top of the game board features a grid for 2D challenges and a separate grid for 3D pyramid challenges, while the bottom of the board features a completely different 2D challenge grid. Includes 68 additional challenges on top of the 120 original challenges of IQ-Puzzler Pro!