The name of the app is ChessQuirk. It is available in iOS, Android, and web (ChessQuirk.com)

If anyone here wants to try the premium features, DM me your ChessQuirk username after creating an account and I’ll give you 3 months of Premium for free.

I built a chess app called ChessQuirk that is heavily focused on one thing I always felt chess apps were missing: actually helping you learn and retain opening theory instead of just showing you a database of moves.

The main feature is an Opening Trainer where you can drill opening lines repeatedly until the moves become familiar. There are also opening quizzes, and you can create your own custom opening repertoires if you want to train specific lines you play.
Some of the other features currently in the app:

• Opening drills for a growing library of openings and variations
• Opening quizzes to test whether you actually remember the moves
• Custom opening builder so you can create and train your own repertoire
• Play games starting directly from a specific opening position
• Opening-specific tactics training
• Post-game analysis with Stockfish and an AI chess coach
• Move classifications and explanations of mistakes/blunders
• A “Most Common Mistake” feature to help identify recurring problems in your games
• Saved game history and analysis

I’m still actively developing it, so I’m also very open to feature requests.

Feedback is very welcome, especially criticism. I’m trying to make this genuinely useful for people who spend a lot of time studying openings rather than just turning it into another generic chess app.

Hello everyone! For the past year, I've been working on an online chess research tool that analyzes the opening phase of the game. So far I've been able to get ahold of about 7.5 million games, all played by semi-competitive chess players on lichess (2500+). While that may sound like a large number, I've come to the realization that the ideal amount of games to populate an opening explorer with statistic would be around twice that number.

If anyone has a large amount of chess games played either OTB or online and that's not from lichess or a commercial package like Chessbase, please send me a message!

I have a collection of chess books in PDF format. They contain annotated games, diagrams, variations, and valuable analysis, but everything is locked inside static pages.

I wanted to turn these books into interactive ChessBase databases without manually entering hundreds of games and positions.

The solution combines Python, OCR, a Large Language Model (LLM), Stockfish, and my old ChessBase 15.

A Python program reads the PDF page by page. OCR extracts the text, while the LLM identifies games, moves, variations, and comments. Chess diagrams are converted into FEN positions, and games are reconstructed in PGN format, preserving the original annotations.

Stockfish checks the legality of moves and helps detect errors in the reconstructed positions.

Once the material is processed, a Python bot controls ChessBase 15, imports the PGN files, and organizes everything into a CBH database.

The result is a chess book transformed into an interactive study tool.

Instead of looking at static diagrams, I can replay games, explore variations, analyze positions with modern engines, and compare the author's ideas with current evaluations.

The interesting part is that none of these technologies needs to be reinvented. Python connects the components, AI interprets the content, Stockfish validates the chess positions, and ChessBase provides the study environment.

A chess book written fifty years ago can now be explored using today's technology.

This is a practical example of how AI can give new life to existing knowledge and software.

Unleash the graveyard guardians! We've been having an absolute blast bringing the world of Monster Chess to life. Imagine your classic chess board, but instead of knights and pawns, you're commanding an army of ghoulish beasts, mischievous monsters, and magical creatures. Every piece is animated with that quirky claymation, puppet style we love, making each move a mini-spectacle. It’s a true battle of brains and beasts, testing your tactical skills against an opponent in a truly unique setting. We’ve poured our hearts into making this a fresh, spooky twist on a timeless game. Dive into the tactical fun and see if you can out-scheme the competition!

https://w.run/snappysamurai383/monster-chess?s=N3xFoCg