[Event "It"] [Site "masterchessopen.com Groningen (Netherlands)"] [Round "9"] [White "Euwe Max (NED)"] [Black "Steiner Hermann (USA)"] [Result "1-0"] [ECO "E47"] [Opening "Nimzo-Indian: 4.e3 O-O 5.Bd3"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.a3 Bxc3+ 7.bxc3 Nbd7 { ?! } ( 7...c5 { !? } ) 8.cxd5 exd5 9.Ne2 Re8 10.O-O Nf8 11.f3 c5 12.Ng3 cxd4 13.cxd4 a6 14.Qd2 Bd7 15.e4 ( 15.Bb2 { !? } ) 15...dxe4 16.fxe4 Bc6 17.d5 Bb5 ( 17...Ng4 18.dxc6 Qd4+ 19.Kh1 Qxa1 20.Bb2 Qa2 21.cxb7 Rad8 22.Qc3 Ne5 23.Bxa6 Qe6 24.Qxe5 { +?? } ) 18.Bb2 { ! } 18...Qb6+ 19.Kh1 ( 19.Rf2 { ? } 19...Ng4 ) 19...Bxd3 20.Rxf6 { ! } 20...gxf6 ( 20...Qb5 21.a4 { ! } 21...Qb3 ( 21...Qc4 22.Rc1 ) 22.Rf3 ) 21.Nh5 Re5 { ? } 22.Bxe5 fxe5 23.Qxd3 { ± } 23...Qh6 ( 23...Rc8 ) 24.Qh3 { ! } 24...Rd8 25.Rf1 { ? 26.?f6 ?g7 27. ?e8 ?e8 28. ?f7+?? } 25...Qg5 ( 25...Qg6 { ? } 26.Rf3 ) 26.Qf3 Qg6 27.Ng3 Rd7 28.Qc3 Qd6 29.Nf5 Qc7 ( 29...Rc7 { ? } 30.Qg3+ Qg6 31.d6 { ! } 31...Qxg3 32.dxc7 { ! } 32...Qd3 ( 32...Qc3 33.c8=Q { ! } 33...Qxc8 34.Ne7+ { +?? } ) 33.Rc1 { ! } ) 30.Qg3+ Ng6 31.Qg5 ( 31.h4 { ?! } 31...Qc4 ) 31...Qd8 ( 31...Qc4 32.Rc1 f6 33.Qh6 { +?? } ) 32.Nh6+ Kg7 33.Rf6 ( 33.Rxf7+ { ? } 33...Rxf7 34.Nxf7 Qa5 ) ( 33.Nxf7 { ! } 33...Qxg5 34.Nxg5 Nf8 { +?? } ) 33...Qa5 { ! } ( 33...Qxf6 { ? } 34.Nf5+ { +?? } ) 34.Rf1 Qxa3 { ? } ( 34...Qd8 { !? } 35.Nxf7 { ± } ) 35.Nf5+ Kg8 ( 35...Kf8 36.Rc1 { ! } ) 36.Qf6 Qf8 ( 36...Kf8 37.d6 Ke8 38.Qg7 Nf8 39.Qg8 { +?? } ) 37.Rc1 { ! } 37...Rd8 38.Rc7 { ? 39. ?xf7 } {#r} 1-0