Nalimov 6 pieces endgame database
- Any 6-pieces endgame can be tested online thanks to this site. Extremely useful to composers, editors and judges and presently more complete than other Nalimov tablebases sites
Chess Problem Database Server
- This chess problem database has been developed and is maintained through volunteer work of a lot of benevolent contributors, who spent their time and energy in the interest of the chess problem community.