Shakmaty Bereolos - The Official Chess Site of Peter Bereolos

White: FM Peter Bereolos
Black: GM John Burke
2018 US Masters
Round 2 Board 16

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Nf3 0-0 9.Qd2 Qa5 10.Rb1 b6 11.Rb5 Qa4

12.Rb3 I remembered playing a game with Neal Harris in this variation where he had suggested 12.dxc5 but 12...Nc6 looked good to me. Checking my database later, that game did not have the moves Nf3 and 0-0, but I still don't think it offers White much. An alternative to the text is 12.Rb2 Ba6 13.Bxa6 Nxa6 14.Bh6 trading Black's dark squared bishop 12...Ba6 13.Bxa6 Nxa6 14.0-0 Rfd8 15.Qb2 [15.Qe2 cxd4 16.cxd4 Rac8 17.Qb2 Nc5 18.Qa3 Qxa3 19.Rxa3 Nxe4 20.Rxa7 Bf6 21.Rb1 ½-½ (21) Werle,J (2525)-Wan,Y (2472) Vlissingen 2015] 15...Rac8 He rejected 15...cxd4 16.cxd4 Nc5 because he could not win the e-pawn after17 17.Ra3 Qc6 (Black is fine with 17...Qd7) because of 18.Qc1 16.Ra3 Qc4 17.Nd2 17.Qb3 Qxb3 18.axb3 Nc7 19.Rxa7 Nb5 20.Rxe7 Nxc3 21.dxc5 bxc5 is equal. White will likely have to trade his b and e pawns for Black's c-pawn 17...Qe2 18.Qb1 18.d5 Nc7 19.Rxa7 Nb5 also gives Black full compensation 18...Nc7 19.Re1 Qb5 20.Rxa7 cxd4 21.cxd4 Bxd4 22.Bxd4 Qxb1 Black has to throw this exchange in since 22...Rxd4? gets hit by 23.Rxc7 23.Rxb1 Rxd4 24.Nf3 Rc4

25.g3 White would like to play 25.a4 but it is refuted by 25...Nb5 25...b5 26.Nd2 Rc2 27.Nf3 Ne6 28.Rxb5 Re2 29.Rxe7? He showed afterwards that passive defense with 29.Rb1 Rcc2 30.Rf1 or 30.Ne1 should hold 29...Rc1+ 30.Kg2 Rcc2 31.Rb8+ Kg7

32.Rbb7 For or better or worse White has to try 32.Rxe6 Rxf2+ 33.Kh3 fxe6 34.Rb7+ when Black may still have to overcome some technical difficulties 34...Kf8 (34...Kf6? 35.e5+ Kf5 36.Nd4+; 34...Kg8 35.Rb8+ Kf7 36.Rb7+ Ke8 37.Nd4; 34...Kh6 35.Kg4 Rc5 36.h4 Rfc2 37.Ng5 Rc7 38.Rxc7 Rxc7 39.Nxe6) 35.Nd4 Rxh2+ 36.Kg4 Rxa2 37.Nxe6+ Ke8 32...Rxf2+ 33.Kg1 33.Kh3 Rxf3 34.Rxe6 h5 35.Reb6 Rff2 36.Kh4 Kh6 and Black wins 33...Rxf3 34.Rxe6 Rd3 I had overlooked this when taking on e7, but Black is still much better after 34...Rff2 35.Ree7 Rg2+. After the text, White can't stop mate 0-1