.CTO-OUK file extension

This is the basic program to work with .CTO-OUK extension


ChessBase ChessBase openings book

ChessBase 13 is a personal, stand-alone chess database. Main features: - Retrieve games according to openings, players and tournaments. - Generate tournament cross tables and full graphic statistics of players or openings. - “Similarity search” shows all games with similar pawn structures, sacrifice patterns, endgame positions, etc... (more)

The program works with the following extensions: ck1, ck2, ck3, cbs, ckn, cko, cp1, cba, cp2, cbb, cp3, cbc, cpn, cbe, cpo, cbf, ctb, ctg, cbh, cto, cbm, pgi, cbp, cbv, pgn, cib, cbz, cit, cbgi, cbtt, ctg-t, cto-t, ctb-960, ctb-ouk, cto-960 and cto-ouk