out of 9. In December 2006, Rybka participated in the 16th International Paderborn Computer Chess Championship. Rybka won the tournament with a score of 6½ points out of 7. In February 2007, Rybka participated in the CCT9 and won with 6/7. In the 7th Leiden ICT in May 2007, Rybka won with a score of 7½ out of 9, ahead of Zappa and HIARCS. Rybka won the 15th World Computer Chess Championship in June 2007 with a score of 10 out of 11. The Rybka team, playing under the handle Rajlich, won the June 2007 PAL/CSS Freestyle final with a score of 6/9. Later that year it won again the Dutch open computer chess championship, scoring 8/9. In January 2008, Rybka tied for first place in CCT10 with 5.5/7. In October 2008, Rybka won the 16th World Computer Chess Championship, held in Beijing, China, scoring 8/9. A month later Rybka won the 27th Open Dutch Computer Chess Championship, held in Leiden, scoring a perfect 9/9. In March 2009, Rybka won CCT11 with 7.5/9 and the 17th World Computer Chess Championship, held in Pamplona, Spain, with a score of 8/9. In May 2010, Rybka won the International Computer Chess Tournament in Leiden with 8/9. Odds matches versus grandmasters In March 2007, Rybka played an eight-game match against GM Roman Dzindzichashvili with pawn and move odds. The result was 4–4, after two Rybka wins, four draws and two losses. Whilst Rybka has won an 8 game match in March 2007 with GM Jaan Ehlvest which involved giving pawn odds to the human, GM Larry Kaufman of the Rybka team has pledged his own money to a human GM who can beat Rybka in a six-game match without material odds. GM Jaan Ehlvest was again chosen to play Rybka, getting twice the thinking time and white every match, with Rybka having only a three-move opening book, limited (512MB) hash size, and no endgame tablebases (the match being dubbed "Everything but a pawn"). The match, again played in 2007, ended 4.5–1.5 after three Rybka wins and three draws. In September 2008, Rybka played an odds match against Vadim Milov, its strongest opponent yet in an odds match. Milov at the time had an Elo rating of 2705, ranking him 28th in the world. The result was a narrow victory to Milov: In two standard games (Milov played White, no odds), Milov lost the first