Observed arrival · 2026-10-25
Infinite Search Space, Back After Thirteen Years
A home for recreational maths and programming contests, with an archive of four past competitions and a return promised.
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◎Niche
◉Human
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ƒJS
- For
- Recreational math and programming puzzle enthusiasts
- Worth noticing
- The integer-orchard contest's results appear in OEIS entry A172992; the grid-colouring problem is cited in a research paper.
Field notes
The archive lists four contests spanning 2011 and 2012, including a SameGame challenge to clear 25 boards and a grid-colouring problem with up to 21 colours. The founder says the site was built in the image of Al Zimmermann’s programming contests and credits a second contest site as part of its origin. The homepage connects past results to an OEIS entry and a research paper; its promised return is not yet shown as an active contest.
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
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