I have played through deleting app, reinstalling because of frustration for a little over 1000 games in the "standard" mode. The problem is the card distribution algorithm for the computer when 1. You are <= 70% win rate, and approaching approx 70 to 80 points - the point scoring for opponent becomes significant (<=14) and recurs in a statistically impossible manner until the game won by computer, and 2. The trend will continue until computer win rate returns to >= 1/3. This has happened so much that the algorithm is so programmed.