[Event "Chocen_fE"] [Site "?"] [Date "1950.??.??"] [Round "?"] [White "Matousek"] [Black "Casensky"] [Result "1-0"] [ECO "C37"] [Annotator "MJDonnelly"] [PlyCount "23"] [EventDate "1950.??.??"] [SourceVersionDate "2008.05.10"] {[%evp 0,23,14,25,25,-33,-33,-28,-28,-36,459,32,160,55,258,272,274,49,327,-18,218,300,29991,29992,29993,29990]} 1. e4 e5 2. f4 exf4 3. Nf3 g5 {A very ancient idea-White gambits a pawn so Black tries to hold onto it.} 4. Bc4 {An invitation to the mad-cap world of the Muzio Gambit which occurs after 4...g4 5. 0-0 gxf3 6. Qxf3. White jettisons much more material subsequently to open lines and get at the Black king.} (4. h4 {is somewhat more common when after} g4 5. Ne5 {leads to the equally ancient Kieseritzky Gambit still played in recent times by the likes of strong players such as Nepomniachtchi and Cvak.}) 4... f6 $2 {Nicely neatening off Black's pawn structure and securing both g5 as well as f4. However, the move drastically weakens the e8 to h5 diagonal which could be immediately exploited.} 5. O-O {Continuing with rapid development in line with the Muzio concept but} (5. Nxg5 {is devastating and a move detailed by Greco in 1620. It is surprising how many modern games follow this line eg} fxg5 (5... h5 6. Nf7 Qe7 7. Nxh8 Qh7 8. Bxg8 $18 {De Souza-Da Costa, Tal Memorial Vitoria da Conquista 2015.}) (5... d5 6. Qh5+ Ke7 7. Qf7+ Kd6 8. Qxd5+ Ke7 9. Qxd8+ Kxd8 10. Nf7+ $18 {Farnik-Klawitter, FICGS Class A 0183 e-mail 2018.}) 6. Qh5+ Ke7 7. Qxg5+ (7. Qf7+ Kd6 8. e5+ Kxe5 9. d4+ Kd6 10. Qd5+ Ke7 11. Qe5# {Chancerel-Guillaume, Schoelcher Martinique op 2013.}) 7... Nf6 8. Qe5# {Broszeit-Schwabe, Theme 23064 freechess.de 2021.}) (5. Nd4 {is another way to exploit the weak diagonal but misses the boat as Black is fine after} Qe7 {Pintor-Leurette, FICGS rapid C 0272 e-mail 2021.}) 5... Bc5+ {Developing a piece with check is usually a good idea but not here as White can gain time with d4.} (5... Bg7 {still fails to} 6. Nxg5 {Domenche-Torra Bitlloch, ESP AEAC W/A/187 ICCF e-mail 2020.} ({and again a move such as} 6. d4 {misses the chance and Black is equal as in Cambal-Baumgartner, SVK-Tch5 SE-S1 2013})) (5... Nc6 {also fails to} 6. Nxg5 ({but again not the indecisive} 6. d4 {and Black is OK in Priegnitz-Schwieger, OP 0-002001 LSS e-mail 2012.})) ({Instead} 5... h5 {covering h5 and}) (5... Ne7 {covering g6 gives Black a good game as in the latter case} 6. Nxg5 {now fails to} fxg5 7. Qh5+ Ng6) 6. Kh1 (6. d4 {is correct when after the typical Black counter-move} d5 {White still has the sac on g5 available after} 7. exd5 (7. Bxd5 Bb6 8. Nxg5) 7... Bd6 8. Nxg5 fxg5 9. Qh5+ Kf8) 6... Nc6 $2 ({After the accurate} 6... Qe7 {Black has a fair game and the sac on g5 is no longer valid-for instance} 7. d4 (7. Nxg5 fxg5 8. Qh5+ Kd8 $19) 7... Bb6 8. Nc3 Nc6 9. Nxg5 fxg5 10. Nd5 Qg7 $19) 7. d4 Bb6 8. Nc3 {Still missing the sac.} a6 {Far to slow in such a dynamic position-both} (8... h5) ({and} 8... Qe7 {give Black a decent game.}) 9. g3 {Trying to open lines in an analagous manner to one of Reshevsky's earliest famous Kings Gambit games (Reshevsky-Doery, Berlin 1920) but again} (9. Nxg5 {was terminal for Black.}) 9... fxg3 $4 {Now the flood gates are opened up and White's pieces invade the Black position} (9... g4 {gives some hope in keeping the game more closed after} 10. Nh4 f3 11. Nxf3 d6 $16 (11... gxf3 12. Qxf3 $18)) 10. Nxg5 gxh2 {Grabbing yet another pawn but even opening up the option of the White queen taking on h2 with check.} (10... fxg5 {loses quickly to} 11. Qh5+ Ke7 12. Bxg5+) 11. Qh5+ Ke7 (11... Kf8 12. Qf7#) 12. Nd5+ (12. Nd5+ {wins in short order, for example} Kd6 13. Qxh2+ ({or} 13. Bf4+ Ne5 14. Bxe5+ fxe5 (14... Kc6 15. Nb4#) 15. Nf7+ Kc6 16. Nb4#) 13... Ne5 14. Nf7+ Kc6 15. Nb4# (15. Nxd8+ {is a move slower.})) 1-0