Erich Cohn un jugador que enfrentó a Chigorin

Chigorin,Mikhail - Cohn,Erich [C47]
DSB-15.Kongress Nuremberg (7), 1906
[Guillermo Muñoz Portugal]

C47: Scotch Four Knights and Four Knights with 4 g3 - Apertura de los Cuatro Caballos con 4.g3 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.Nxc6 bxc6 7.Bd3 d5 8.exd5 cxd5 9.0-0 0-0 10.Bg5 c6 11.Qf3 Be7 12.Rfe1 Re8 13.h3 Be6 14.Ne2 Nd7 [14...c5 15.Rad1 Qa5 16.Nf4 c4 17.Bf1 h6 18.Bxf6 Bxf6 19.Nxd5 Bxd5 20.Rxe8+ Rxe8 21.Qxd5 Qxd5 22.Rxd5 Bxb2 23.Bxc4 Re7 24.Rd8+ Kh7 25.g4 Rc7 26.Bd3+ g6 27.Kg2 Kg7 28.Kf3 Ba3 29.Ke4 Mellado Trivino,J (2434)-Mascaro March,P (2354)/Can Picafort 2008/CBM 126 Extra/1-0 (46)] 15.Bxe7 Qxe7 16.Nf4N [16.Ng3 Qd6 17.Qh5 Nf6 18.Qg5 h6 19.Qd2 Rad8 20.c3 Bc8 21.Rad1 Kf8 22.Rxe8+ Rxe8 23.Re1 Rxe1+ 1/2-1/2 Von Linschoten,H-Schlage,W/Berlin 1920/EXT 2001; 16.Nd4 Qd6 17.Rad1 Nc5 18.Re2 Bd7 19.Rde1 g6 20.Rxe8+ Rxe8 21.Rxe8+ Bxe8 22.Qe3 Bd7 23.Nb3 Nxb3 24.axb3 c5 25.f4 Kg7 26.g4 h6 27.Kg2 Bc6 28.Qf3 c4 29.bxc4 dxc4 30.Be4 Qd2+ Farkas,G (2231)-Petenyi,T (2261)/Slovakia 2010/EXT 2011/0-1 (57); 16.c3 Qf6 17.Qg3 Nc5 18.b4 Nxd3 19.Qxd3 a5 20.Nd4 Bd7 21.Rxe8+ Bxe8 22.a4 axb4 23.cxb4 c5 24.bxc5 Rxa4 25.Rxa4 Bxa4 26.Qf5 Qxf5 27.Nxf5 Kf8 28.Kf1 g6 29.Nd4 Ke7 30.Ke2 Kd7 Ajrapetian,G (2361)-Semenkov,A (2198)/Elets 2008/EXT 2011/1-0 (66)] 16...Qf6 17.c3 Nf8 18.Qg3 Bd7 19.Bc2 Rab8 20.Bb3 Bf5 [20...Qd6 21.Nd3 Qxg3 22.fxg3=] 21.Re3 [21.Bxd5 Rxe1+ 22.Rxe1 Rxb2+/= (22...cxd5?? 23.Nh5 Qh6 24.Qxb8+-) ] 21...Qd6 22.Rae1 Qd7 23.Qg5 h6 24.Qh5 Rxe3 25.Rxe3 Ng6 [25...a5!?=] 26.Nxg6+/= Bxg6 27.Qe2 Rb7 28.Kf1 [28.Ba4 Kh7=] 28...c5= 29.c4 [>=29.Re8+ Kh7 30.Re5=]

29...d4-/+ 30.Re5 Qd6 31.Ke1? [31.Rd5 Qh2 32.f3-+]

31...f6-+ 32.Re6 [32.Rd5 Qc7 33.Kf1 Bf7-+] 32...Qf4 33.Bd1? [33.f3-+]

33...d3 34.Qg4 [34.Qe3 Qxc4 35.Kf1 d2+ 36.Kg1 Qc1-+] 34...Qh2 35.Kd2 [35.b3 Qg1+ 36.Kd2 Qxf2+ 37.Kc3-+] 35...Rxb2+ 36.Kc3 Qb8 [>=36...Rc2+ 37.Bxc2 dxc2-+] 37.Bb3?? [>=37.Qxg6 Qb4+ 38.Kxd3 Rd2+ 39.Ke3 Qc3+ 40.Kf4 Rd4+ 41.Re4 Qd2+ 42.Kg3 Rxe4 43.Qxe4 Qd6+ 44.f4 Qxd1 45.Qe6+ Kf8 46.Qc8+ Kf7 47.Qxc5 Qd3+ 48.Kh2+/-]

37...Rc2+! [37...Rc2+ 38.Bxc2 Qb4#] 0-1