I'm scared of chess games - they are extremely difficult to make. Player vs player is doable, but player vs computer is next to impossible. I know that someone was will to design the AI in the job posts, would recommend you place and ad there. Expect it to cost a couple $1000 at least.
Player vs Player - I would go through the tutorial section. Start with the first page, make those example games. Read the manual, and start by building individual components of the game.
Move pieces around the board, put those pieces into families, overlapping pieces trigger a function, etc etc. Spend a couple 1000 hours building sections of your game. By that time you will be in a better place to string them together into a final product.
But the A.I is beyond many programmers, even seasoned veterans.