Louis Uedemann

Louis Uedemann (Jan. 10, 1854 – Nov. 22, 1912) was a chess master and member of the Chicago Chess Club and the Chicago Chess and Checker Club. He won the Western Chess Association's first and third U.S. Open chess championships in Excelsior, Minn., in 1900 and 1902. In contemporary Elo terms, his peak rating is estimated at 2440 (achieved in 1902). For a time, Uedemann was chess editor at the Chicago Daily Tribune.

Uedemann Code
Uedemann devised a code for the transmission of chess moves by telegraph. In this code, ranks are labeled (first to eighth) B, D, F, G, H, K, L, P, while the files are labeled (left to right) A, E, I, O, O, I, E, A; a file-first pair represents a queenside square, while a rank-first pair represents a kingside square. Moves are encoded as four letters: two identifying the origin square and two identifying the destination square. This code was never actually used, mainly because a transposition of letters could result in a valid but incorrect move. D.A. Gringmuth of St. Petersburg, Russia, made refinements to Uedemann's code, and Gringmuth's system (sometimes inaccurately called "Uedemann Code") was used in telegraphic matches starting in 1866.

Notable Games
L.Uedemann–M.Judd

Ruy Lopez, Closed Defense (C84)

Seventh American Chess Congress, St. Louis, 1904

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.d4 exd4 7.e5 Ne4 8.Nxd4 Nxd4 9.Qxd4 Nc5 10.Nc3 0-0 11.Nd5 Ne6 12.Nxe7+ Qxe7 13.Qd5 f6 14.exf6 Qxf6 15.c3 d6 16.Be3 Kh8 17.f4 Nd8 18.f5 Qe5 19.Qd2 Rxf5 20.Bd4 Qe7 21.Rxf5 Bxf5 22.Rf1 Be4 23.Qg5 Nc6 24.Qxe7 Nxe7 25.Rf7 Nf5 26.Rxc7 Nxd4 27.cxd4 Rd8 28.Bd7 b6 29.Bc6 Bb1 30.Bd5 h6 31.Rc6 Bd3 32.Rxb6 Kh7 33.b4 Kg6 34.Bb7 Kf5 35.a4 d5 36.Bxa6 Bxa6 37.Rxa6 Ke4 38.b5 Kxd4 39.b6 Kc5 40.b7 Rb8 41. Ra5+ 1-0