Garry Kasparov, a former chess world champion who is running for president of the World Chess Federation, released previously confidential agreements Friday involving himself and one of the officials who is part of his slate of candidates to lead the organization.

An earlier draft contract, reported in an article in The New York Times this week, indicated that the official, Ignatius Leong — who is the general secretary of the federation under its longtime president, Kirsan Ilyumzhinov, who is running for re-election — was paid to join Kasparov’s campaign. The draft also stated that Leong, who lives in Singapore and is a powerful figure in chess in Asia, was being paid to supply votes for Kasparov’s election.

The election will be in August in Tromso, Norway, as part of the biennial Chess Olympiad.

The final agreements were released on Kasparov’s election website. A statement accompanying the disclosure said that “the Kasparov Team welcomes such transparency and are looking forward to seeing our opponents act in the same manner.”

One of the contracts is an update of the previous draft. The draft said that Kasparov would pay Leong $500,000. That is not part of the revised agreement.