Best chess tools

Free online chess, analysis and collaborative studies

Chess database searches by player, opening and position

A local chess database toolkit derived from Scid

Desktop chess training with adjustable engines

A searchable chess-game archive with community discussion

Tactics, opening repertoire practice and chess databases

Build an opening tree from chess-game collections

Repeated practice for chess openings, tactics and endings

Online chess with learning tools and player communities

Chess reporting with links to study and training tools