Hey everyone, A few months ago I barely knew what a Web Worker was. Today I finally deployed my first real project. Like a lot of players, I've always hit a wall calculating more than 5 moves ahead in faster games. Standard puzzles don't really train that; you're always looking at the board, which isn't how real calculation works. So I built Horizon Chess to fix it. Completely free, no ads, no backend at all, just Stockfish.js running in a Web Worker, Chess.js for move validation, and Ches...