Can you post a link to one of the games?
Can't seem to beat the bot Vinh.
I ended up winning against vihn reliably, but it was mostly because unlike a human player(at a 1500ish rating), bots don't have a problem drawing a losing position. So watching out for perpetual checks during the endgame.
I beat Pierre(1500), Wendy(1500), David(1300) and Nelson(1300) no problem. Well, some problems with Pierre, but I was able to clean up my game with Pierre to reliably beat him, but I keep drawing Vihn. What is missing from my game to beat him?