Every volume of Chess Informant offers a selection of the best games played by the world's greatest chess players. Over 90% of the games are annotated by the players who played them. The classification code system facilitates the search by openings and variations, and the system of annotation signs and symbols is perfectly understandable to everyone. There are also the most interesting endings, combinations, studies, the ten best games and the ten most important theoretical novelties from the previous volume, tournament crosstables and thorough indexes of players and annotators.

Chess Informant 99 contains 413 annotated games and 500 variations.

Contributors include V. Anand, Kramnik, Ivanchuk, Morozevich, Leko, Svidler, Mi. Adams, Bu Xiangzhi, Nisipeanu, A. Volokitin, Rublevsky, Van Wely, Sergey Karjakin, V. Milov, Vallejo Pons, Iv. Sokolov, Krasenkow, B. Socko, Sutovsky, Navara, A. Beliavsky, A. Onischuk, Bologan, Tiviakov, Motylev, A. Naiditsch, Va. Salov, Alexander Moiseenko, M. Gurevich, D. Stellwagen, Roiz, Ehlvest, Predojevic, Je. Piket, Gagunashvili, Ch. Lutz, Ar. Jussupow, Ribli, J. Benjamin, L. Christiansen, Xie Yun, J. Timman, Mikhalchishin, Speelman, and many others.
 
The voting for the ten best games and the ten most important theoretical novelties from Chess Informant 98, theoretical survey in ECO format, the most interesting recent combinations, endings and studies, tournament standings and crosstables, and the best of Yasser Seirawan’s creative output.

CD Chess Informant 99 includes a free supplement of Chess Informant 98 in PGN format (games without annotations).