My chess projects.

These are my chess projects. I keep Play Bots, Bookup, Chess Connections, and Scottish Progressive here so they are easy to find and use.

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Projects

Each tool has its own job, but they all point at the same goal: make chess practice feel concrete and useful.

Play

Play Bots

Jump straight into games against custom bots. The point is not a generic engine match; it is a place to test ideas, get punished for lazy moves, and review what happened after.

Different bot profiles with their own style
Legal board play with premoves and undo support
Game review backed by engine checks

Open Play Bots Source

Study

Bookup

Bring in your games and turn repeated mistakes into a training queue. It is for building a repertoire from positions you actually reach, not from a random opening list.

Rapid, blitz, and bullet game imports
Training views for positions that need work
Smart Theory exports for cleaner study trees

Open Bookup Source

Trace

Chess Connections

Search for a path from one player to another using real public games. Every connection points back to proof games, so the graph is fun without being made up.

Rapid, blitz, and bullet wins from Chess.com
Readable graph and proof ledger views
Cloudflare worker cache for heavier searches

Open Connections Source

Analyze

Scottish Progressive

Play Scottish Progressive Chess in your browser. Explore legal series, save positions, and face the latest deployed version of the purpose-built engine.

Play legal series directly on the board
Automatic analysis built for progressive turns
Save and reopen analysis positions

Open Progressive Source