As a fan of both drinking contests and chess, I was more interested in the Chess-but-you-can-make-your-opponent-undo-a-move-by-taking-a-shot. A short term bene

As a fan of both drinking contests and chess, I was more interested in the Chess-but-you-can-make-your-opponent-undo-a-move-by-taking-a-shot. A short term benefit traded for a longer term cognitive disadvantage in a mental game. Unfortunately, I could see it inevitably devolving into a straight-up drinking contest, with the actual chess gameplay only benefitting you by 1 drink (and maybe a longer clock).