With 5D Chess, you can checkmate in multiple dimensions

I'll be honest, regular 2D chess was already enough to sizzle my brain - but apparently that wasn't difficult enough, as someone has created 5D chess.

Released last week by Conor Petersen and Thunkspace, 5D Chess claims to be "the first ever chess variant with spatial, temporal, and parallel dimensions". There's multiverse time travel, branching timelines, parallel dimensions - all something that makes it sound more suitable for Dr. Who than the average human.

Early Steam and YouTube reviews have argued it's actually closer to 4D chess, as the game features two physical and two temporal axes ("height" is not interactable). The explainer by MariAurum below finally helped me gain an understanding of the four axes: there's your regular x and y physical axes (left, right, up and down on a traditional chess board), and then there's your temporal axes, one that represents "time" (as in the past and future of a board), and the second representing parallel dimensions.

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