I should probably add some sort of confirmation to the final event to indicate that the game ends when you click it. You can keep playing as long as you like if you ignore it. The game could probably be a couple of matches longer, and maybe it could be fun to have a requirement of scoring a couple of checkmates before it ends. Checkmates are hard to get, but they feel pretty great when you manage to set one up. I want to add some sort of scoring system to give players more of a reason to play again, and checkmates will probably be a big part of your score.