Tobias Graf won two gold (9x9, 13x13) and one silver medal (19x19) at the Computer Olympiad in Leiden with his Go program "Abakus". At the Computer Olympiad programs play tournaments in several board games like go, chess or hex. Tobias Graf developed Abakus during his research in Computer Go and runs it on the OCuLUS cluster on several CPUs and GPUs.
