Gerry Nolan suggests the following:-
For anyone who may not know already, Stockfish is an open source chess engine that ranks top , or thereabouts, in the chess engine league table. It’s at version 8 at the moment and is upgraded fairly regularly. You can download it and add it into Fritz or any other chess programme that accepts UCI engines. Its chess grading is around 3400, so it will be able to beat you even quicker than the engine you’ve already got
We look forward to welcoming Gerry back when his training sabbatical is over!