this post was submitted on 03 Oct 2024

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submitted 2 months ago by [email protected] to c/[email protected]

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[–] [email protected] 19 points 2 months ago (1 children)

Somehow it reminded me of The Angel Problem:

The Angel-Devil game is played on an infinite chess board. In each turn the Angel jumps from his current position to a square at distance at most k. He tries to escape his opponent, the Devil, who blocks one square in each move. It is an open question whether an Angel of some power k can escape forever.

The mechanics are obviously different from it, but the theory kinda of still applies: if we limit the pieces to the maximum of K squares, could it lead to a checkmate?

[–] [email protected] 18 points 2 months ago

That's neat, I'd never heard of it before!

It is an open question whether an Angel of some power k can escape forever.

Looks like you're quoting the Proceedings of 11th Annual International Conference on Computing and Combinatorics from 2005: https://dl.acm.org/doi/abs/10.5555/2958119.2958180

Apparently, it was solved (twice!) the next year.

In late 2006, the original problem was solved when independent proofs appeared, showing that an angel can win. Bowditch proved that a 4-angel (that is, an angel with power k = 4) can win[2] and Máthé[3] and Kloster[4] gave proofs that a 2-angel can win.

https://en.wikipedia.org/wiki/Angel_problem