Street Chess by OddballDave 2018-04-23T16:50:29Z
I second that - there should be some way to ramp up the difficulty. Also, the control matters a lot here too - with a touchpad the opponents are reasonably difficult but with a real mouse it's easy to mow them down.
Though thought it was nice (IDK if this was explicitly coded in or just happened) how the AI would immediately take your piece sometimes if you moved into danger. Just running around with a rook generally worked but I did get punished a few times when I got careless.