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[Not-so-daily puzzle] Circle fun
757 sats \ 0 comments \ @south_korea_ln 29 Jan 2025 science
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Early Retirement by Bitcoin
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[Daily puzzle] Diameter of circle
2175 sats \ 13 comments \ @south_korea_ln 14 Oct 2024 science
The Bitcoin Retirement Plan
4638 sats \ 14 comments \ @CarlBMenger 24 May 2023 bitcoin
[Daily puzzle] Fun with geometry
757 sats \ 4 comments \ @south_korea_ln 20 Oct 2024 science
[Daily puzzle] Probability of ending at 1
922 sats \ 27 comments \ @south_korea_ln 7 Oct 2024 science
[Not-so-daily puzzle] Two envelope puzzle
921 sats \ 12 comments \ @south_korea_ln 25 Dec 2024 science
[Daily puzzle] Sierpiński carpet
933 sats \ 3 comments \ @south_korea_ln 4 Nov 2024 science
[Not-so-daily puzzle] Area of a diamond
474 sats \ 4 comments \ @south_korea_ln 1 Jan 2025 science
[Daily puzzle] Prisoner Hats
677 sats \ 9 comments \ @south_korea_ln 7 Nov 2024 science
[Daily puzzle] Reuleaux triangle
716 sats \ 12 comments \ @south_korea_ln 30 Oct 2024 science
The Bitcoin Halving
2748 sats \ 34 comments \ @CarlBMenger 31 Mar 2024 bitcoin
[Daily puzzle] A short break (and some answers)
632 sats \ 4 comments \ @south_korea_ln 19 Oct 2024 science
[Not-so-daily puzzle] A fun geometry puzzle
405 sats \ 11 comments \ @south_korea_ln 15 Jan 2025 science
Books & Articles Weekly, Issue 85
763 sats \ 24 comments \ @siggy47 11 Oct 2025 BooksAndArticles
Books & Articles Weekly, Issue 84
589 sats \ 12 comments \ @siggy47 5 Oct 2025 BooksAndArticles
🚀 New Geocaching Meets Lightning App ⚡
175.5k sats \ 87 comments \ @questforsats 20 Feb 2025 builders
Meme Monday - Best Bitcoin Meme Gets 25,000 Sats
4823 sats \ 73 comments \ @sn 4 Dec 2023 bitcoin
Bitcoin in Action – May Projects That Are Driving Bitcoin Adoption
57.1k sats \ 31 comments \ @Geyser 11 Jun 2025 Geyser_community
Satoshi Treasure Hunt #2 with a 20,000 sats reward!
37.5k sats \ 1 comment \ @OneOneSeven 5 Aug 2022 bitcoin freebie
₿OSS Challenge 2026 | Start Your Career in Bitcoin Open Source Softwarebosschallenge.xyz/
76.2k sats \ 28 comments \ @ajonas 2 Dec 2025 bitdevs
Legend of the Snail | 19/20 participants left | 24 days until next KO | $67,982
152k sats \ 21 comments \ @oracle 18 Mar 2024 oracle