1 00:00:00,000 --> 00:00:04,000 So, checkers is an interesting game. 2 00:00:04,000 --> 00:00:08,000 Here's the typical board of the game of checkers. 3 00:00:08,000 --> 00:00:11,000 Your pieces might look like this, 4 00:00:11,000 --> 00:00:16,000 and your opponent's pieces might look like this. 5 00:00:16,000 --> 00:00:19,000 And apart from some very cryptic rules in checkers, 6 00:00:19,000 --> 00:00:23,000 which I won't really discuss here, the board basically tells you 7 00:00:23,000 --> 00:00:28,000 everything there is to know about checkers, so it's clearly fully observable. 8 00:00:28,000 --> 00:00:33,000 It is deterministic because your move and your opponent's move 9 00:00:33,000 --> 00:00:36,000 very clearly affect the state of the board in ways that have 10 00:00:36,000 --> 00:00:39,000 absolutely no stochasticity. 11 00:00:39,000 --> 00:00:45,000 It is also discrete because there's finitely many action choices 12 00:00:45,000 --> 00:00:47,000 and finitely many board positions, 13 00:00:47,000 --> 99:59:59,999 and obviously, it is adversarial, since your opponent is out to get you.