At rook odds! Morphy vs A Morphy, 1850  (000) Chess variants, 18 moves, 1-0 "Oh oh oh, Mate!" A Kvicala vs NN, 1869  (B20) Sicilian, 18 moves, 1-0 G Spencer vs NN, 1893  (C37) King's Gambit Accepted, 14 moves, 1-0 12...Nce4+ 13.Kd3 Nf2+ 14.Kc3 Nge4# was faster NN vs C Meyer, 1931  (A01) Nimzovich-Larsen Attack, 18 moves, 0-1 "Green Eggs and Hurme" O Seuss vs H Hurme, 1969  (B09) Pirc, Austrian Attack, 19 moves, 1-0 Remember when chess computers were weak? Steinbach vs Chess Champion Super System III, 1982  (C40) King's Knight Opening, 13 moves, 1-0 30.Qe2# was faster A Fomez vs M Lanzani, 1988  (B96) Sicilian, Najdorf, 32 moves, 1-0 18.O-O-O# was faster U Capo Vidal vs E Gonzalez Chavez, 2001  (A54) Old Indian, Ukrainian Variation, 4.Nf3, 19 moves, 1-0 The fastest known mate by castling NN vs Ryan Marcelonis, 2014  (B20) Sicilian, 10 moves, 0-1 My first mate by castling! F Rhine vs NN, 2014  (A40) Queen's Pawn Game, 19 moves, 1-0 My second! 12.Qf5# was faster F Rhine vs NN, 2018  (B21) Sicilian, 2.f4 and 2.d4, 14 moves, 1-0 My fourth mate by castling - a new world record! R S Robinson vs F Rhine, 2019  (B20) Sicilian, 17 moves, 0-1 Honorable Mention Ed Lasker vs G Thomas, 1912  (A40) Queen's Pawn Game, 18 moves, 1-0 Second Honorable Mention L Prins vs L Day, 1968  (B28) Sicilian, O'Kelly Variation, 28 moves, 0-1 Third Honorable Mention Anand vs Svidler, 1999  (D97) Grunfeld, Russian, 31 moves, 1-0 Dmitry Zhuchek vs E Rosen, 2021  (C42) Petrov Defense, 22 moves, 0-1 Fourth Honorable Mention Tran Nguyen Duy Tung vs NN, 2021  (C50) Giuoco Piano, 16 moves, 1-0 NN vs Eric, 2017  (C20) King's Pawn Game, 19 moves, 0-1 Mason vs Dr. S, 1882  (000) Chess variants, 18 moves, 1-0 R Arnold vs Mephisto Polgar, 1990 (B02) Alekhine's Defense, 13 moves, 1-0 Fifth Honorable Mention Y Bukayev vs V Sokolov, 2025  (C51) Evans Gambit, 14 moves, 1-0 21 games