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HACKENBUSH: a window to a new world of math

HACKENBUSH: a window to a new world of math on HackerTube: recommended by 3 Hacker News commenters across 3 separate months, 2022–2025.

Owen Maitzen

explainer · intro · evergreen

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Owen Maitzen's animated hour-long introduction to Hackenbush, a simple combinatorial game, and how its strategy leads to surreal numbers and the roots of the number system.

Why Hacker News recommends it

HN recommends it as an accessible, well-visualized entry point to Hackenbush, surreal numbers and their link to Nim.

people recommended it
3
separate months
3
strong recommendations
1
discussed on HN
2022–2025
“I found the following video extremely useful and well-visualized”
— lblume, Feb 2025, in “Transfinite NIM (the game, not the programming language)”

What HN commenters said

3 Hacker News comments link this video. Each one links back to its thread.

lblumeFeb 2025Strongly recommends

Nim is, in fact, a proper subset of Hackenbush, a game extensively studied by Conway. I found the following video extremely useful and well-visualized: ▶ this video

in “Transfinite NIM (the game, not the programming language)” · View on HN

nthingtohideDec 2024Recommends

HACKENBUSH: a window to a new world of math ▶ this video Thanks for the blogpost, I think you will like this above SOME3 entry. Owen Maitzen committed suicide which is mentioned in the following video. The Endless Universe of "Bean and Nothingness" [link]

in “Numbers Are Leaves” · View on HN

rini17Sep 2022Recommends

All numbers are fictitious :) Though, I think "games" built on surreal numbers are akin to these. [link] An accessible intro: ▶ this video

in “Indefinite and Fictitious Numbers” · View on HN

Topics & tags

Recreational & visual mathProbability & game theoryPure mathematicshackenbushsurreal numbersnimgame theorymath visualization