[Event "19th Student Olympiad"] [Site "Mayaguez, Puerto Rico"] [Round "0"] [White "Yuri S Razuvaev"] [Black "Avraham Koski"] [Result "1-0"] [WhiteElo "2540"] [BlackElo "2262"] [ECO "D07"] [Opening "QGD: Chigorin, 3.Nf3 Bg4 4.cxd5"] {DAY 135 Caffeine Break If a higher-rated opponent seems to be playing coffee-house moves, he may be bluffing. Or not.} 1.d4 d5 2.c4 Nc6 3.Nf3 Bg4 4.cxd5 Bxf3 5.dxc6 Bxc6 6.Nc3 e6 7.e4 Bb4! 8.f3 f5 9.Bc4! fxe4!? 10.O-O! exf3 11.Bxe6 Qf6? 12.d5! f2+?! 13.Kh1 Bxc3 14.dxc6 Qxe6 15.cxb7 Rd8? 16.Qxd8+ {White queens (17 b8(♕)+). Black would be slowly losing after 15...♖b8 16 bxc3 ♖xb7 17 ♖xf2 and ♖e2/♗a3.} {#r} 1-0

[Event "Tallinn, Estonia 2002"] [White "Viktor Gavrikov"] [Black "Evgeny Sveshnikov"] [Result "0-1"] [ECO "B32"] [Opening "Sicilian: Loewenthal"] {DAY 136 ♗s Before ♘s Bishops are often developed after knights because their best squares depend on a pawn structure still in flux.} 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6 6.c4 Be7! 7.b3 f5 8.exf5 Bxf5 9.N1c3? a6! 10.Na3 Qa5! 11.Bb2 d5! 12.Qxd5 Bxa3 13.Qxa5 Bxb2 14.Qc7 Bxc3+ 15.Ke2!? Nd4+ 16.Kd1 Bxa1 17.Qxg7 O-O-O 18.Qxh8 Nxb3+ 19.Ke2 e4 {trapping the queen} {#R} 0-1

[Event "Astrakhan"] [Site "Russia"] [Round "0"] [White "Sergei M Begun"] [Black "Vladimir Stukalov"] [Result "1-0"] [WhiteElo "0"] [BlackElo "0"] [ECO "C41"] [Opening "Philidor: Exchange Variation"] {DAY 137 False Faith Misguided belief in the drawish nature of an endgame claims many a victim.} 1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.dxe5 Nxe4 5.Bc4 c6 6.Nbd2 Nxd2 7.Bxd2 Be7 8.exd6 Qxd6 9.Bc3 O-O 10.Qxd6 Bxd6 11.O-O-O Bc5 12.Ne5 Bb6 13.Nxf7 Rxf7 14.Rhe1 Kf8 15.Bb4+ c5 16.Bxc5+ {#r} 1-0

[Event "Vinkovci"] [Site "Vinkovci CRO"] [Date "1970.10.08"] [Round "4"] [White "David Bronstein"] [Black "Dragoslav Tomic"] [Result "1-0"] [WhiteElo "0"] [BlackElo "0"] [ECO "B31"] [Opening "Sicilian: Rossolimo, 3...g6"] {DAY 138 Gambits Accepted It’s a tired cliché: “The only way to refute a gambit is to accept it.” Tired but, more often than not, true.} 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.c3 Qb6 5.Ba4 Bg7 6.O-O e5 7.Na3 Nge7 8.b4 cxb4 9.Nc4 Qc5 10.d3 bxc3 11.Rb1 c2 12.Qxc2 Nd4 {#r} 1-0

[Event "Moscow 1969"] [White "A Krasik"] [Black "B Baryshnikov"] [Result "0-1"] [ECO "B32"] [Opening "Sicilian: Open, 2...Nc6"] {DAY 139 Desperado Queen When both queens are attacked, one can become a desperado by offering itself for the most material.} 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 Qa5 8.Qd2 Nxe4 9.Nxc6 Qxc3 10.Qxc3 Bxc3+ 11.bxc3 bxc6 12.O-O d5 13.Bb3 Nxc3 {White saw that 14 ♗d4? would lose another piece, 14...♘e2+.} {#R} 0-1