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Show HN: Phive

Hacker News - Sat, 05/30/2026 - 5:43pm

In 2025, my family and I had a long streak of playing a Gomoku / Go Bang / five-in-a-row based game called OK Play. I built a web version so that we could play any time we wanted (i.e. on our phones after kiddos went to sleep).

The first player to get five-in-a-row (horizontally, vertically, or diagonally) wins. In the first phase of play, players take turns placing their pieces next to existing pieces (always edge-to-edge; you can't place a piece with only a corner-to-corner connection). After players exhaust their pieces, play moves into the movement phase: you pick up an existing piece you own and place it according to the previous placement rules. During the movement phase, you cannot move a piece that would leave other pieces disconnected. Play continues in player order until someone wins.

I wrote the app using Elixir's Phoenix framework with Daisy UI / Tailwind CSS for styling. The app is deployed on Gigalixir via its generous free plan. I am by no means a frontend developer / designer, so there's for sure better ways to implement things than what I have here. I mostly focused on making it mobile friendly and getting it to support light and dark mode. There likely exists browser / device specific bugs, since we've only tested it out on our phones (iPhone 13 Pro, Safari / Chrome) and my computer (MacBook Pro, Safari). Happy to hear any suggestions, frontend or otherwise, if you have them!

Developing this has been a real journey. Highlights have included learning about Gomoku and its variants, articulation points (and Trajan's algorithm for strongly connected components), and the Monte Carlo tree search algorithm (for the intermediate level "AI" mode I've recently added for single-player use). Lowlights have all been CSS related.

I'd love to add a "matchmaking" mode in the future. I haven't really looked too much into the mechanics for how that's usually done though - it'll be a great learning opportunity!

Comments URL: https://news.ycombinator.com/item?id=48340891

Points: 1

# Comments: 0

Categories: Hacker News

Why the Brain Cannot Be a Computer

Hacker News - Sat, 05/30/2026 - 5:42pm

Article URL: https://arxiv.org/abs/2503.10518

Comments URL: https://news.ycombinator.com/item?id=48340887

Points: 1

# Comments: 0

Categories: Hacker News

10g Upgrade

Hacker News - Sat, 05/30/2026 - 5:32pm
Categories: Hacker News

UK public data to inform decisions and build services

Hacker News - Sat, 05/30/2026 - 5:23pm

Article URL: https://www.data.gov.uk

Comments URL: https://news.ycombinator.com/item?id=48340751

Points: 1

# Comments: 0

Categories: Hacker News

Anonymous age verification using only hand gestures

Hacker News - Sat, 05/30/2026 - 5:14pm

Article URL: https://borderage.com/

Comments URL: https://news.ycombinator.com/item?id=48340676

Points: 1

# Comments: 0

Categories: Hacker News

AI Can't Care

Hacker News - Sat, 05/30/2026 - 5:09pm
Categories: Hacker News

Show HN: A website for the top internet videos of all time

Hacker News - Sat, 05/30/2026 - 5:04pm

Some simple,quick entertainment for ya'll. Hand-picked videos to start, then user-submitted and voted to continue.

Check it out, cast some votes, submit your favorites. Feedback and votes appreciated.

Comments URL: https://news.ycombinator.com/item?id=48340609

Points: 1

# Comments: 2

Categories: Hacker News

'The Legend of Vox Machina,' 'Every Year After' and More New Prime Video Releases We're Watching in June

CNET Feed - Sat, 05/30/2026 - 5:00pm
Prime Video promises romance, action and much more this June.
Categories: CNET

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