- Denmark (Copenhagen)
On 30 January 2004, Danish Grand Master Peter Heine Nielsen played a game of chess against ChessBrain, the world's largest networked chess computer. It consisted of 2,070 computers located in 56 countries, which simultaneously combined their processing power. The match was professionally referreed and took place in Copenhagen, Denmark, and ended in a draw after 34 moves. The ChessBrain project was founded by Carlos Justiniano (USA) and Colin Frayn (UK).