.CTO-OUK

.CTO-OUK file extension

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

ChessBase

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