{"type": "article", "title": "Mainline Closed Beta: Open-source, science-based chess training", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/mainline-closed-beta-open-source-science-based-chess-training", "original_source": "https://github.com/kleinebossie/Mainline", "published": "2026-08-12T09:44:37+00:00", "accessed": "2026-08-12", "id": "mainline-closed-beta-open-source-science-based-chess-training"}