John Owen (chess player) 1862 to his retirement in 1900. In 1858 he won a chess game against the young American master Paul Morphy, the world's best player, who was then touring Europe. This led to a match between the two. Despite being given odds of pawn and the move (meaning he started the game with an extra pawn and always moved first), Owen lost the match 6–1, never winning a game. His performance in the very strong 1862 London tournament, the first international round-robin event (in which each participant plays every other) was more impressive. He finished third, ahead of future world champion
Janus Chess checkmate cannot be . Due to the extra pieces, each player starts the game with considerably more " power" compared to standard chess; however, the game has only a slightly higher material "power density", since there is more room for players to maneuver pieces because of the larger board (10×8 = 80 squares). Due to the different board and pieces, players are unable to use normal chess opening theory, and chess tablebases have limited value in the endgame. Janus Chess has been popular in Europe with regular tournaments drawing strong players. Several chess grandmasters have played this game including Viktor