Combinatorial games played randomly: Chomp and nim

Fuente: arXiv
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Autores principales: Devlin, Pat, Trifonova, Paulina
Formato: Preprint
Publicado: 2024
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author Devlin, Pat
Trifonova, Paulina
author_facet Devlin, Pat
Trifonova, Paulina
contents In this note, we investigate combinatorial games where both players move randomly (each turn, independently selecting a legal move uniformly at random). In this model, we provide closed-form expressions for the expected number of turns in a game of Chomp with any starting condition. We also derive and prove formulas for the win probabilities for any game of Chomp with at most two rows. Additionally, we completely analyze the game of nim under random play by finding the expected number of turns and win probabilities from any starting position.
format Preprint
id arxiv_https___arxiv_org_abs_2401_16670
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Combinatorial games played randomly: Chomp and nim
Devlin, Pat
Trifonova, Paulina
Combinatorics
91A46, 60C05, 05C81, 91A05, 00A08
In this note, we investigate combinatorial games where both players move randomly (each turn, independently selecting a legal move uniformly at random). In this model, we provide closed-form expressions for the expected number of turns in a game of Chomp with any starting condition. We also derive and prove formulas for the win probabilities for any game of Chomp with at most two rows. Additionally, we completely analyze the game of nim under random play by finding the expected number of turns and win probabilities from any starting position.
title Combinatorial games played randomly: Chomp and nim
topic Combinatorics
91A46, 60C05, 05C81, 91A05, 00A08
url https://arxiv.org/abs/2401.16670