MK112 Brain Game

Hey everybody new to the forums, I am trying to build the MK112 Brain Game Kit on a bread board and noticed that the schematic included does not match the pre-fabricated circuit board…I.e on the schematic it says the IC Chip Pin1 4 and pin 8 are supposed to be ground but according to the pre-fab board pin 4 of the IC chip is connected to C1. Can anyone confirm this?