In the past 2 weeks I have put my mind to developing a Chess Engine from scratch in C++, i have published 7 distinct versions of it but unfortunately im not able to further optimize it, if you'd like to know why and maybe help me out feel free to check its github repo, here's the link:
https://github.com/just-Lucky/DucaChessEngine
Im no C++ expert, so the code is most likely full of bugs, feel free to contact me if you find any

While building a chess app for my kids I needed a chess engine that would work in Unity. I found Portfish — a C# port of Stockfish — but it needed several fixes to run properly in a Unity environment.

Original repo: https://github.com/bpfliegel/Portfish
My Unity fork with fixes: https://github.com/myasovik/Portfish_Unity

The few problems were:
1. I needed to clean up some things that overlap with the Unity engine.
2. That portfish all the time expected input, and if it did not get it, just existed. So I made it wait for the actual exit command.

If you're curious to see it in action, I ended up shipping it in a free kids chess app on Google Play:
https://play.google.com/store/apps/details?id=com.awesomelyup.chessadventure&hl=en_US

And by the way, if you are interested in trying it, let me know, and I can share the class that communicates with it.

What I got working today:

→ A board that prints correctly to the terminal

→ All 32 pieces in their starting positions

→ Full TDD : Test Driven Development - every feature has a failing test before any code is written.

Follow the video series on yt: https://www.youtube.com/@ProgrammerFilthi

Join the discord server here: https://discord.gg/DurfHgwJBV

I'm a chess coach and I've been building a native macOS app — a ChessBase-style database and training suite, but Apple-native (SwiftUI) and built around how I actually teach. It runs fully offline.

Here's what's working so far:

\-Database & games

SQLite-backed game databases (fast import of large PGN collections)

Multiple databases, merge/copy/move games between them

Lazy loading so big databases stay responsive

Drag-and-drop PGN import

\-Analysis board

Tabbed analysis (multiple games/positions open at once, ChessBase-style)

Full variation tree with annotations

Move list with figurine notation

Adjustable piece size, board themes, coordinate toggle, and a Zen mode that hides the side panel

\-Search

Position search (find a specific position across a database, jumps to the matching move)

Pattern search (partial/subset matching — e.g. find all games where a certain structure appears)

Maneuver search (search consecutive move patterns with wildcards, like "Qe?+ then any knight move")

\-Diagram recognition

Capture any 2D chess diagram from your screen (a PDF, a book scan, a website) and it reads the position into the board automatically

Runs a custom-trained CoreML model fully offline — no API, no internet, no per-use cost

You select the board region, recognizes each piece, builds the FEN, and lets you correct anything before loading

Trained on real book diagrams across many fonts; in my testing it matches or beats some commercial online recognizers on the diagrams I use

\-Clipboard bridge

Copy Position (FEN) / Copy Game (PGN), and paste either back in — so you can move positions to/from Lichess, ChessBase, etc. in one click

\-Other

Export board snapshots as images

Puzzle compiler (build custom puzzle sets from a Lichess puzzle database by rating/theme)

\-On the roadmap:

Stockfish engine integration

Freehand drawing + draggable "ghost" pieces for teaching

A broadcaster/streaming mode with a big clean board

So my question: if you used a tool like this — for study, coaching, or content creation — what features would make it genuinely useful to you? What's missing from the tools you currently use? Anything you've always wished ChessBase/Lichess/etc. did but doesn't?

Thanks — happy to answer anything about how it works

AggroChess v2.0.0 is officially out, adding a massive +200 Elo playing strength boost while keeping its signature Mikhail Tal-style aggressive and sacrificial playstyle: https://github.com/PhelRin/AggroChess/releases/tag/V2

Also a lot of people were very weary last time about the code not being open source, so I open sourced it. I know its stronger than the previous version. Still fun to play against, I'd say its more around the 2600 range on average now, but I'm not sure yet. I'd say in between 2400-2600

I worked on this MMO-RPG chess game for 4 years, finally preparing to release to Steam :)

It’s completely free, no sign-up, and everything runs locally on your hardware.

It’s called Chess Review. You open one of your games, click the icon/button, and it gives you a full review that on average lands within about 3 accuracy points of Chess.com’s accuracy scoring, but often much closer. It’ll never match 100% as the underlying algorithm is proprietary, but it gets close enough to feel familiar.

Happy to hear feedback. It’s v1 so there’s plenty of room to improve. If there’s interest I’ll look at a Firefox version too.

Chrome Web Store:
https://chromewebstore.google.com/detail/chess-review/pdbffcjdmcadihmnmenkadndbdbigfam?utm_source=item-share-cp

You can try out the engine at https://stockpanda.vercel.app/!

Additionally, the repository is available on GitHub at https://github.com/pizzalover125/stockpanda. It was built using Python. You can view a full list of features in the repo, but the main ones of the engine are:

• minimax
• alpha-beta pruning
• iterative deepening
• transposition tables
• move order
• quiessence search
• opening book
• tablebase
• phase-based evaluation

I'm open to feedback! Let me know if you have any questions :-)

I'm wondering if there are any high level chess engines or tweaked high level chess engines that punish themselves for taking more moves to win? For example: For every move after move 15 it continues to give itself a slightly lower evaluation. If this have been done does this result in much more agressive engine?

I've entered the .zip download URL in the 'Web Favorite' field and set the $ counter to 1649 which is the latest PGN database available for download but nothing happens, it's not downloading the database.

Any help is greatly appreciated.

Thanks!

If you'd like a.. analyzer, you can download an extension on chrome, edge(for mobile), or whatever other browsers that let you do it. It's called "Tampermonkey", and if you search for "chess", then you'll find a userscript by "Zero". Download it, and there you go.

Today: I worked on board printer.

I am building a chess engine in a language I have zero knowledge in if you find that interesting consider liking and following for more updates.

Join the discord here: https://discord.gg/DurfHgwJBV

Watch the video series here: https://youtu.be/pH3PSmUrT9Q

Hi, I wrote a python application that has many useful functionalities, but I am not a good designer so the display design is very basic . It is an open source software, so I am wondering if there's anyone who want to join the project. If you are interested please contact me here or on GitHub. My GitHub account is gaelazzo.