The Certabo does NOT come with an "engine." I've updated your own post with an extensive explanation on this.
Thank you chessroboto, I've asked yet another question on my post as I still don't understand how you use Stockfish which they mention on the Certabo site. I want to go through Dvoretsky's endgame book and be able to set up positions and variations on the board, have the board sense the position and then see if I can win winning positions against Stockfish. However, I also like these very visible blue LEDS and the ability to play games on chess.com. It may be that I need a Millenium to study endgames and a Certabo to play on Chess.com....
I received a reply from Certabo but they didn't tell me the diameter of the electronic chips that come with the Fazio Brown. I presume they can't be cut to size and the set I'd like to use have a variety of diameters - King/queen 36mm, Knight/Bishop 33mm, Rook 30mm, Pawns 26mm.
Thanks again for your help and patience.
The Certabo does NOT come with an "engine." I've updated your own post with an extensive explanation on this.