Lichess: The free and open source chess server

• online-go.com

  202 1,171 9.8 TypeScript

  Source code for the Online-Go.com web interface

  

• liwords

  20 74 9.3 Go

  A site that allows people to play a crossword board game against each other

  

This site is one of the best things I've seen on the internet. It inspired me to make a similar site for crossword board games (think Scrabble, Words With Friends, etc). See https://woogles.io - also AGPL. The backend is Go-based, and the site has around 6500 MAU (we're about to hit 2M total games). We just released a puzzle mode that is pretty popular and is already making people improve - some of us anecdotally report better word-finding in live tournaments :)

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• lichobile

  38 1,970 2.7 TypeScript

  lichess.org mobile application

  

• irwin

  57 486 0.0 Python

  irwin - the protector of lichess from all chess players villainous

• kaladin

  6 46 0.0 PureBasic

  Machine learning tool aimed at automating cheat detection using insights data.

  

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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