 This work has stood up to subsequent analysis.From 1836 to 1839, Szen travelled extensively throughout much of Europe, including France, Germany and England, playing chess wherever he went.In 1836 Szén played a match in Paris with Louis-Charles Mahé de La Bourdonnais, then considered the strongest player in the world, in which de La Bourdonnais gave him odds of pawn and two moves.