Source: /cirosantilli/average-length-of-a-snakes-and-ladders-game

= Average length of a Snakes and Ladders game
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{tag=Computational problem}
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Since <Snakes and Ladders> is nothing but a <Absorbing Markov chain>, the results are exactly the same as for that general problem.

https://www.jstor.org/stable/3619261[]: How Long Is a Game of Snakes and Ladders? by Althoen, King and Schilling (1993), <closed access academic journals are evil>[paywalled].

https://en.wikipedia.org/wiki/Snakes_and_ladders\#Mathematics_of_the_game