"God is omniscient/omnipresent....."
Your understanding of God is that he is a chess player, playing both sides of the board. That I can assure is not the case. You have studied your scriptures of evolution and think you know what it means. Take the time to study the Bible and you will find that God is not the chess player on both sides of the board. He is a risk taker; willing to let mankind have free will and leave evil unbridled.
Actually you have misquoted me. I questioned if god was omnipotent, not omnipresent. And despite your assurances, my understanding of god is that he/she/it is a manifestation of man as a response to the human incapacity to explain the natural world.