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The Busy Beaver Challenge

Deciding the undecidable, one Turing machine at a time.

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Top financial contributors

1
Guest

$100 USD since Sep 2024

2
Guest

$50 USD since Sep 2024

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Incognito

$50 USD since Sep 2024

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$5 USD since Dec 2024

The Busy Beaver Challenge is all of us

Our contributors 5

Thank you for supporting The Busy Beaver Challenge.

Guest

One time 100$

$100 USD

Guest

$50 USD

Inkognito

One time 50$

$50 USD

Justin Blanchard

backer

$5 USD

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Contribution #816087
+$50.00USD
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Contribution #792603
+$100.00USD
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Contribution #791058
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Today’s balance

$174.58 USD

Total raised

$174.58 USD

Total disbursed

--.-- USD

Estimated annual budget

$260.00 USD

About


Created in 2022, the Busy Beaver Challenge (https://bbchallenge.org) is a massively collaborative research project dedicated to the busy beaver problem.

In July 2024, bbchallenge achieved its initial goal which was to prove the 5th busy beaver value: "BB(5) = 47,176,870". The proof was written in Coq, a formal theorem prover. Our story was reported by Quanta magazine.

Since then, bbchallenge has been focused on writing a human readable paper for the BB(5) result and attacking new busy beaver values such as BB(6).

Raised funds are used for:

  • Recurring costs (website server)
  • Financial support for contributors participating at conferences / events / journals where {papers,talks} spurred by the community have been accepted
    • Helping with travel costs & event participation fee
    • Helping with costs of publication / open access
  • Organisation of a live workshop (either independent or at an existing event) for the bbchallenge community

Thank you very much for your help!



Our team