[Event "Chioggia op-B 11th"]
[Site "Chioggia"]
[Date "2016.10.09"]
[Round "5"]
[White "Rossi, Gianni"]
[Black "Ballarin, Gabriele"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1748"]
[BlackElo "1897"]
[Annotator "Fritz 15 (60s)"]
[PlyCount "46"]
[EventDate "2016.10.07"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ITA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

{[%mdl 8192][%evp 0,46,17,17,74,73,75,74,87,34,44,21,0,-6,-1,-7,18,-1,20,1,74,55,53,66,41,36,44,-4,25,22,44,31,34,40,97,139,137,134,283,110,672,672,667,698,735,646,765,750,803] B07: Difesa Pirc: sistemi vari} 1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nge2 Nbd7 5. g3 Be7 6. Bg2 O-O 7. O-O c6 8. h3 Re8 9. Be3 Bf8 10. g4 (10. Re1 exd4 11. Bxd4 Nc5 12. Nf4 Ne6 13. Nxe6 Bxe6 14. Qd2 d5 15. exd5 cxd5 16. Rad1 a6 17. Re3 Rc8 18. a3 b5 19. b4 g6 20. Bxf6 Qxf6 21. Nxd5 Bxd5 22. Rxe8 Rxe8 23. Bxd5 Bg7 24. c4 h5 {Zilberman,Y (2460)-Houska,M (2200) London 1994 1-0 (39)}) 10... g6 $146 {Il Nero ha una posizione ristretta. Il pezzo del Nero non può essere mosso: c8} (10... exd4 11. Bxd4 Qa5 12. f4 h6 13. Ng3 Nh7 14. Qf3 Nc5 15. Rad1 Ne6 16. Bf2 Nc7 17. b3 f6 18. Nge2 Be6 19. Bg3 Rad8 20. h4 d5 21. e5 fxe5 22. fxe5 Qb4 23. Bf4 Bc5+ 24. Kh2 Rf8 25. Na4 {Harokopakis,G (1962)-Milosevic,J (2124) Pozarevac 2014 1-0 (64)}) (10... Nb6 11. b3 h5 12. g5 Nh7 13. h4 Bg4 14. f3 Be6 15. f4 Bg4 16. Bf3 Bxf3 17. Rxf3 exd4 18. Qxd4 g6 19. Rd1 Rc8 20. f5 d5 21. exd5 Nxd5 22. fxg6 fxg6 23. Qd3 Qd6 24. Nxd5 cxd5 25. Nf4 {Drabke,L (2457)-Ager,J (2125) Austria 2015 1-0 (38)}) (10... b5 11. a3 Nb6 12. b3 Rb8 13. Ng3 g6 14. Qd2 a6 15. f4 exd4 16. Bxd4 c5 17. Bf2 Bb7 18. Rae1 b4 19. axb4 cxb4 20. Nd1 a5 21. Bd4 Nfd7 22. Bb2 Rc8 23. g5 Qc7 24. Kh1 Qc5 25. Ne3 {Demanghon,J (2120)-Caron,P (2114) France 2004 1-0 (31)}) 11. Ng3 exd4 {Forchetta del Nero: c3+e3} 12. Bxd4 {Il Nero ha una posizione ristretta. Il pezzo del Nero non può essere mosso: c8} Nc5 13. Qf3 (13. Qd2 Nfd7 $11) 13... Bg7 {La posizione del Bianco è attiva} (13... Nfd7 14. Nce2 $11) 14. g5 {Il Bianco minaccia di guadagnare materiale: g5xf6} Nfd7 15. Bxg7 Kxg7 {Il pezzo del Nero non può essere mosso: c8} 16. Qe3 d5 $2 (16... Ne6 $142 $11 {ed il Nero avrebbe potuto sperare di giocare ancora}) 17. Qd4+ $16 Kg8 18. exd5 Qxg5 $2 (18... cxd5 19. f4 Ne6 20. Qf2 $16) 19. dxc6 (19. b4 $142 Na6 20. dxc6 bxc6 21. Bxc6 $18) 19... Ne6 $4 {un peggioramento deciso della posizione} (19... bxc6 $142 20. Bxc6 Rb8 $16) 20. cxd7 $18 Bxd7 21. Qxd7 Rad8 (21... Qh4 {non vince un premio} 22. Nd5 $18) 22. Qb5 (22. Qxb7 {ed il Bianco intravvede una facile vittoria} Qh4 23. Qxa7 Rb8 $18) 22... Qf4 (22... Qh4 {non è la mossa che salva} 23. Qa4 Qxa4 24. Nxa4 $18) 23. Rad1 (23. Nd5 {ed ora il Bianco può anche rilassarsi} Qh4 24. Qxb7 Rb8 25. Qxa7 Kg7 $18) 23... Nd4 1-0

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.17"]
[Round "4.90"]
[White "Zacharias, Alexander"]
[Black "Hasenbank, Dirk"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1796"]
[BlackElo "2121"]
[Annotator "ChessBase II"]
[PlyCount "106"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

{[%evp 0,106,17,12,74,74,75,64,77,70,74,62,101,91,86,77,84,104,70,70,58,16,61,62,64,48,50,44,52,33,22,38,39,36,35,40,41,35,37,28,30,-104,-94,-101,-65,-57,47,73,78,82,35,35,31,48,48,3,3,-17,40,-17,-25,-21,-27,-19,-11,-17,-10,-10,-14,-41,0,0,28,23,31,23,31,46,48,38,38,19,19,15,13,10,17,12,1,-6,0,-1,0,0,0,0,0,0,0,0,0,-70,-78,-58,-72,-636,-732,-29999,-29999]} 1. e4 d6 2. Nf3 Nf6 3. Nc3 g6 4. d4 Bg7 5. Be2 c5 6. dxc5 Qa5 7. O-O Qxc5 8. Be3 Qa5 9. Qd2 Nc6 10. Nd5 Qd8 11. Nxf6+ Bxf6 12. c3 O-O 13. Rfd1 Qc7 14. Bg5 Bxg5 15. Qxg5 Kg7 16. Bc4 h6 17. Qg3 Bd7 18. Bb3 f5 19. Nh4 Rf6 20. f4 fxe4 21. Re1 e5 22. Rxe4 exf4 23. Rxf4 Raf8 24. Raf1 Ne5 25. Rxf6 Rxf6 26. Rxf6 Kxf6 27. Qf4+ Kg7 28. Qd4 Kh7 29. Qd5 Qc5+ 30. Qxc5 dxc5 31. Bc2 Kg7 32. Kf2 Bc6 33. Nf3 Ng4+ 34. Kg3 Bxf3 {[%mdl 4096]} 35. gxf3 Nf6 36. Kf4 Nd7 37. Be4 b6 38. Bc6 Nb8 39. Bb5 Kf6 40. b4 cxb4 41. cxb4 a6 42. Be8 g5+ 43. Kg4 Ke7 44. Bg6 Nc6 45. a3 Ne5+ 46. Kh5 Nxf3 47. h3 Kf6 48. Bd3 a5 49. bxa5 bxa5 50. a4 Kg7 51. Be4 Ne5 52. Bd5 $2 {[%mdl 8192] [#]} Nd7 53. Bc6 Nf6# 0-1

[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1993.01.??"]
[Round "2"]
[White "Christiansen, Larry Mark"]
[Black "Karpov, Anatoly"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2620"]
[BlackElo "2725"]
[PlyCount "23"]
[EventDate "1993.01.??"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "CBM 034"]
[Source "ChessBase"]
[SourceDate "1993.06.01"]
[SourceVersion "1"]
[SourceVersionDate "1993.06.01"]
[SourceQuality "1"]

{[%evp 18,23,48,50,40,52,454,455]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qc2 Bb7 6. Nc3 c5 7. e4 cxd4 8. Nxd4 Nc6 9. Nxc6 Bxc6 10. Bf4 Nh5 11. Be3 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7 .} Bd6 $146 {[%eval 454,24] [%wdl 1000,0,0][%mdl 8192] [#]} ({Better is} 11... Bc5 $14 {[%eval 52,26] [%wdl 84,916,0]}) ({Predecessor:} 11... Bc5 12. Bxc5 bxc5 13. g3 O-O 14. Be2 Nf6 15. O-O Qb8 16. Rad1 Rd8 17. f4 d6 18. Bf3 Qb7 {1-0 Ribli,Z (2620)-Miles,A (2540) GER CupT Karlsruhe 1988 (2.1)}) 12. Qd1 $1 {[%csl LRd6,LRh5] Weighted Error Value: White=0.00 (flawless) /Black=2.29.  Loses game:     	---       	Black=1      OK:         	White=1     	---        Best:        	White=1     	---} 1-0

[Event "Provincial Coruña 2024"]
[Site "A Coruña"]
[Date "2024.01.27"]
[Round "1"]
[White "Martinez Ramos, Marcos Javier"]
[Black "Lopez, Xesús"]
[Result "0-1"]
[ECO "B15"]
[Annotator "Martinez Ramos,Marcos Javier"]
[PlyCount "45"]
[EventDate "2024.01.27"]
[EventType "swiss"]
[EventRounds "6"]

{[%evp 14,45,33,35,30,33,33,5,34,0,42,0,28,-433,-444,-527,-519,-524,-521,-520,-499,-504,-511,-550,-542,-610,-594,-674,-674,-770,-770,-834,-830,-807]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8. Qc2 Re8+ {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} 9. Ne2 h6 10. Bd2 (10. O-O) 10... Qc7 {[%cal Oc6c5] The position is equal.} 11. O-O-O Nd7 $146 {[%cal Ob7b5]} ({Predecessor:} 11... c5 12. Rde1 c4 13. Bh7+ Kh8 14. Ng3 Bd7 15. Rxe8+ Bxe8 16. Re1 Nc6 17. Bf5 g6 {1-0 Nepomniachtchi,I (2779)-Jovic,S (2075) Titled Tuesday intern op 11th Jul Late Chess.com INT blitz 2023 (1)}) 12. Kb1 c5 13. Qc1 $2 {[%eval -433,24] [%wdl 0,0,1000][%mdl 8192] [#]} (13. Rhe1 $11 {[%eval 28,28] [%wdl 24,975,1] and White has nothing to worry.}) 13... c4 $19 {Black is clearly winning.} (13... Bxh2 14. Bxh6 c4 15. Ng3 (15. Bf4 Bxf4 16. Bh7+ Kf8 $18) 15... Bxg3 (15... cxd3 $2 16. Rxh2 f5 17. Bxg7 $18) 16. fxg3 $18) 14. Bxh6 cxd3 15. Bxg7 Kxg7 (15... Rxe2 16. Qh6 $11) 16. Ng3 Nf8 17. Rxd3 Nh7 18. Nh5+ Kh8 {[%cal Oc8f5] aiming for ...Bf5!} 19. Rf3 Bg4 (19... Bxh2 $2 {loses.} 20. Qh6 (20. Nxf6 Nxf6 {[%mdl 64] Remove Defender} 21. Rxf6 Re6 $16) 20... Rg8 21. Nxf6 $18) 20. Nxf6 {[%cal Oc1h6] [#] Threatening mate with Qh6!} Bxf3 21. gxf3 {White wants to mate with Qh6.} Nxf6 22. Rg1 Bf4 ({Worse is} 22... Bxh2 23. Qh6+ Nh7 24. Qg7#) 23. Qf1 {White did not feel at home in the position after the opening.   Weighted Error Value: White=0.72/Black=0.07 (flawless) .  Loses game:     	White=1     	---        Inaccurate:     	White=3     	Black=3      OK:         	White=2     	Black=6      Best:        	---       	Black=1} 0-1

[Event "Liga Gallega 1 Div"]
[Site "A Coruña"]
[Date "1995.02.04"]
[Round "4"]
[White "Franco, Daniel"]
[Black "Martinez Ramos, Marcos Javier"]
[Result "0-1"]
[ECO "B24"]
[Annotator "Martinez Ramos,Marcos Javier"]
[PlyCount "78"]
[EventDate "2024.01.27"]
[EventType "swiss"]
[EventRounds "6"]

{[%evp 12,78,-29,-26,2,-13,11,-23,-18,-35,13,-41,22,-40,23,-7,-8,-18,6,4,17,23,88,90,89,82,79,80,178,162,181,180,192,191,174,175,180,197,186,177,296,301,300,286,385,342,398,388,432,429,443,380,386,322,445,320,330,209,192,0,0,0,143,3,35,-143,-134,-588,-598]} 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. f4 Nge7 7. Nf3 Nd4 {B24: Closed Sicilian: 3 g3 sidelines.} 8. O-O O-O 9. g4 $146 {[%cal Of4f5]} ({Predecessor:} 9. Be3 Nec6 10. Ng5 d6 11. Rf2 Bd7 12. Nb1 Ne7 13. c3 Ndc6 14. Nd2 b5 15. Ndf3 {½-½ Welz,P (2210)-Heuer,T (2305) Oberliga Nord O 9293 Germany 1992}) 9... d5 {Black has an edge.} 10. e5 Nec6 11. a4 a6 12. Nb1 Rb8 13. c3 Nxf3+ 14. Qxf3 b5 15. axb5 axb5 16. Be3 Qe7 (16... d4 {looks sharper.} 17. Qxc6 dxe3 18. Qe4 Bb7) 17. Qf2 d4 18. Bxc6 dxe3 19. Qxe3 Bb7 {[%eval 178,25] [%wdl 989,11,0]} (19... Qc7 $16 {[%eval 80,25] [%wdl 277,723,0]} 20. Be4 (20. Qxc5 $2 Bb7 $19) 20... f6) 20. Ra7 $18 ({Inferior is} 20. Bxb5 Ba8 21. c4 (21. Rxa8 Rxa8 22. g5 Ra1 $15) 21... f6 $11 (21... Qb7 22. Rxa8 Rxa8 23. Nc3 $11)) 20... Qc7 21. Bxb7 (21. Qxc5 $2 {loses.} Qxc6 22. Qxc6 Bxc6 $19) ({And not} 21. Bxb5 Qb6 22. Rxb7 Rxb7 $17) 21... Rxb7 22. Rxb7 Qxb7 23. Qxc5 Rc8 24. Qe3 Qd5 25. b4 Rd8 {[%eval 296,19] [%wdl 1000,0,0]} (25... Qa2 {[%eval 177,26] [%wdl 988,12,0] was necessary.} 26. d4 Qc2) 26. d4 $1 Ra8 27. Qf3 Qd8 28. Nd2 {[%cal Bb1d2,Bd2e4,Be4d6][%mdl 32]} Ra2 29. Ne4 Qh4 {[%csl Ga2][%cal Rh4h2]} 30. h3 Qd8 31. Nd6 Bf8 32. Nxb5 Qb6 33. c4 Bxb4 34. Qb3 Qa5 {[#]} 35. Rf2 $2 {[%eval 0,33] [%wdl 4,992,4]} (35. f5 $1 $18 {[%eval 192,21] [%wdl 993,7,0][%cal Rf5e6] Hoping for fxe6.} exf5 36. gxf5) 35... Ra1+ $11 36. Kg2 {Threatens to win with f5.} Be1 {[%eval 143,23] [%wdl 909,91,0] [#]} (36... Be7 $11 {[%eval 0,33] [%wdl 4,992,4] remains equal.}) 37. Rc2 {[%eval 3,25] [%wdl 5,991,4]} (37. Re2 $1 $16 {[%eval 143,23] [%wdl 909,91,0]}) 37... Bh4 38. Qc3 {[%eval -143,24] [%wdl 0,93,907]} (38. Re2 $14 {[%eval 35,25] [%wdl 28,971,1] keeps the upper hand.}) 38... Qa8+ $17 {[%mdl 1024] Black has strong compensation.} 39. Qf3 $2 {[%eval -588,22] [%wdl 0,0,1000][%mdl 8192] [#]} (39. d5 $17 {[%eval -134,26] [%wdl 0,144,856] was the crucial defense.} exd5 40. Qf3) 39... Rg1+ $3 {[%mdl 576] Deflection.   Weighted Error Value: White=0.57/Black=0.41.  Loses game:     	White=1     	---        Missed win:     	White=1     	---        Mistake:       	White=2     	Black=3      Inaccurate:     	White=5     	Black=7      OK:         	White=10    	Black=5      Best:        	White=1     	Black=2      Strong:       	White=1     	---        Brilliant:      	---       	Black=1} 0-1

[Event "Budapest MVM Cup 20'+10"]
[Site "Budapest"]
[Date "2002.08.22"]
[Round "8"]
[White "Polgar, Judit"]
[Black "Macieja, Bartlomiej"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2681"]
[BlackElo "2607"]
[Annotator "Huzman,Alexander"]
[PlyCount "46"]
[EventDate "2002.08.19"]
[EventType "match (rapid)"]
[EventRounds "8"]
[EventCountry "HUN"]
[SourceTitle "CBM 091"]
[Source "ChessBase"]
[SourceDate "2002.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. Re1 Bf5 9. c4 O-O 10. Nc3 Nxc3 11. bxc3 Bxd3 12. Qxd3 dxc4 13. Qxc4 Bd6 14. Qb5 (14. Rb1 Re8 15. Be3 (15. Rxe8+ Qxe8 16. Bd2 h6 17. Qd3 b6 18. Re1 Qd7 19. Qe4 Rd8 20. c4 Bb4 21. Bxb4 Nxb4 22. a3 Nc6 23. d5 Na5 24. Nh4 $36 {1-0 Chandler,M-Van der Sterren,P/Luzern 1982/EXT 97-B (41)}) 15... Qd7 (15... Qf6 16. Qa4 $1 b6 17. Bg5 Qg6 18. g3 Ne7 19. Bxe7 Rxe7 $14 {Timman-Van der Sterren/Niederlande (ch) 1983 (19)}) 16. Qb5 b6 17. c4 a6 18. Qh5 Bf8 19. d5 Na5 20. Ne5 $36 {½-½ Gongora,M-Perez,R/Santa Clara-A 2000 (49)}) 14... Qf6 (14... Rb8 15. Qh5 (15. Rb1 a6 16. Qd3 Re8 17. Be3 h6 18. c4 b6 19. Red1 Qf6 20. Kf1 {½-½ Yudasin,L-Kholmov,R/Lvov 1983/MCL (20)}) 15... Re8 16. Bd2 Qf6 17. Re3 Qg6 18. Qxg6 hxg6 19. c4 b6 20. Kf1 f6 21. d5 Rxe3 22. Bxe3 Ne5 $11 {½-½ Pirttimaki,T-Kholmov,R/Lvov 1983/MCL (31)}) 15. Bg5 (15. Rb1 a6 16. Qd5 b5 17. Bg5 Qg6 18. g3 h6 19. Qxc6 hxg5 20. Rb2 Ba3 21. Qxg6 fxg6 22. Rb3 Rxf3 23. Rxa3 b4 24. Rb3 Raf8 25. Re2 bxc3 $11 {½-½ Cox,J-Hartoch,R/London 1984/EXT 99 (29)}) 15... Qg6 16. c4 (16. Qxb7 Rfb8 17. Qa6 Nxd4 $1 $19) (16. d5 Ne5 17. Nxe5 Qxg5 18. Nf3 Qf6 $11) 16... a6 17. Qb2 b6 $11 18. a3 Qd3 $1 19. Rad1 $2 (19. Qe2 $11) 19... Qxc4 20. d5 Na5 21. Be7 (21. Bf6 Qg4 $1 22. Rd4 Qg6 $17) 21... Bxe7 22. Rxe7 Rae8 23. Rd7 $4 {[%mdl 8192]} (23. Qe5 Qb3 24. Rc1 Rxe7 25. Qxe7 Qxd5 26. Qxc7 Nb3 $17) 23... Qa4 {[%cal Ya4d1,Ya4d7]} 0-1

[Event "Candidates Tournament"]
[Site "Moscow"]
[Date "2016.03.12"]
[Round "2"]
[White "Karjakin, Sergey"]
[Black "Nakamura, Hikaru"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2760"]
[BlackElo "2790"]
[Annotator "Roiz,Michael"]
[PlyCount "75"]
[EventDate "2016.03.11"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "RUS"]
[EventCategory "22"]
[SourceTitle "CBM 172"]
[Source "ChessBase"]
[SourceDate "2016.05.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.05.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 d5 (7... c6 {is the most common continuation here.}) 8. cxd5 exd5 {This pawn structure was seen in many games of Sergey in this tournament.} 9. O-O O-O 10. Nc3 Nbd7 ({Sergey was able to prove, that Black's position is very solid after} 10... Re8 {, which might be more flexible.}) 11. Qc2 {The most common setup - the d1-spot is now vacant for one of White's rooks.} ({The ambitious transfer of the knight to f5 doesn't offer White any advantage:} 11. Nh4 Re8 12. Nf5 Bb4 13. Re1 Nf8 $11) ({Another possible plan is based on leaving the d1 on its initial spot, but after something like} 11. Ne5 Bb7 12. Rc1 Re8 13. Nb5 c5 $132 {Black's position seems perfectly playable.}) 11... Re8 12. Rfd1 ({In the following recent game Black didn't pose any problems:} 12. Bf4 Nf8 13. Rfd1 Ne6 14. Be5 Bb7 15. a3 Ne4 16. b4 $6 Nxc3 17. Qxc3 c6 18. Rab1 a5 $15 {1/2 Gelfand,B (2735)-Martirosyan,H (2425)/Moscow RUS 2016 (25)}) (12. Ne5 Bb7 13. Rfd1 Bd6 14. Nc4 Bf8 15. Bf4 Rc8 16. Qb2 Ba8 17. Ne5 c5 $132 {1/2 Spassov,L (2475)-Georgiev,K (2430)/Plovdiv 1984/MCD (19)}) 12... Nf8 $146 {A novelty. This is a standard manoeuvre - the knight is heading to e6, where it will put more pressure on White's centre, whereas the d8 becomes more mobile.} ({In one preceding game Black was able to solve all the problems after} 12... Bd6 13. Bc1 (13. Nh4 $5 c6 14. Nf5 Bf8 15. Bf4 $14) 13... c6 14. Bb2 Qe7 15. Rac1 Rac8 16. Nh4 g6 $11 {1-0 Pashikian,A (2617)-Hayrapetyan,H (2441)/Al-Ain UAE 2014/The Week in Chess 1051 (66)}) 13. Ne5 (13. e4 {leads only to simplifications:} dxe4 14. Nxe4 Bb7 15. Ne5 Nxe4 16. Bxe4 Bxe4 17. Qxe4 Bd6 $11) 13... Bb7 {Of course, Black has to cover the vulnerable c6-spot.} 14. Bc1 $1 {An excellent move! White gets more control over the centre now.} ({Once again,} 14. e4 {would be harmless:} dxe4 15. Nxe4 Bxe4 16. Bxe4 Nxe4 17. Qxe4 Bd6 18. Qf3 Bxe5 19. dxe5 Qe7 20. Bc3 Rad8 $11) 14... Ne6 15. Bb2 Bd6 ({After} 15... c5 16. dxc5 bxc5 17. Rac1 Bf8 18. e3 $36 {the pressure on both hanging pawns is very annoying.}) ({The modest} 15... c6 $5 16. Rac1 Rc8 17. e3 Bd6 {would lead to a passive, but solid position.}) 16. e3 a6 {A somewhat inaccurate move, which makes Black's queenside pawn structure less flexible.} (16... c5 {would be premature:} 17. Nb5 Bb8 18. dxc5 bxc5 19. Nc4 $36) ({However,} 16... c6 $5 {was a safer option.}) 17. Ne2 c5 {It looks like Hikaru has underestimated the consquences of creating 2 hanging central pawns.} ({Otherwise, he would have continued} 17... Rc8 18. Rac1 c6 $14) 18. dxc5 {GM Karjakin dosn't see a reason for delaying this exchange.} ({Indeed, something like} 18. Nc4 Bf8 19. dxc5 Nxc5 20. Nf4 Rc8 21. Qe2 Ne6 $14 {would hardly offer him more.}) 18... Nxc5 $1 {A correct choice - the isolated d5 is under strong pressure, but Black's pieces are becoming more active now.} (18... bxc5 19. Qf5 Qc7 20. Nd3 Ne4 21. Bxe4 dxe4 22. Ndf4 $16) 19. Nd3 Nce4 $1 {Hikaru sensibly deviates from the exchange of knights.} (19... Rc8 20. Nxc5 Bxc5 21. Qd3 Ne4 22. Rac1 $16) 20. Rac1 ({Possibly,} 20. Bd4 $5 Rc8 21. Qb2 $14 {would be more annoying for Black.}) 20... Rc8 21. Qb1 Qe7 22. Bd4 Rxc1 $6 {There was no reason for losing control over open c-file.} (22... Bc5 $142 23. Qa1 a5 $14) 23. Rxc1 b5 24. b4 $1 {Now, when Black's knight is far from reaching the stable c4-spot, it makes sense to fix the favourable pawn structure.} Nd7 25. a3 {This move gives Black time for regrouping his forces.} ({A more energetic way was} 25. Nef4 h6 26. Qb3 $16) 25... Nf8 26. Ba1 {At this stage of game Sergey avoids any ''drastic'' measures.} (26. Nc5 $5 Bxc5 27. bxc5 Bc6 28. Qb2 Ne6 29. f3 Nf6 30. Bxf6 gxf6 31. Qb4 $16) 26... Ne6 27. Qa2 Bc7 28. Nd4 Bb6 {Black has been able to improve the placement of his minor pieces, but the position is still quite unpleasant.} 29. h4 {[%mdl 8192]} Nxg3 $2 {A terrible tactical blunder.} (29... Nxd4 30. Bxd4 Bxd4 31. exd4 Qf6 32. Qb2 h6 33. Nc5 Ba8 $14 {would have kept a worse, but solid position.}) 30. fxg3 Nxd4 {Hikaru's calculations were based on the vulnerablity of d3, but he had missed an important detail...} 31. Bxd4 Bxd4 32. exd4 Qe3+ 33. Qf2 $1 Qxd3 34. Rc7 $18 {That's it! The double attack immediately decides the battle. The remaining few moves were just an agony.} f5 35. Rxb7 h6 36. Bxd5+ Kh7 37. Bg2 Re2 38. Bf1 1-0

[Event "Clutch-ch June"]
[Site "Lichess.org INT"]
[Date "2020.06.09"]
[Round "1.9"]
[White "Grischuk, Alexander"]
[Black "Aronian, Levon"]
[Result "0-1"]
[ECO "E06"]
[WhiteElo "2777"]
[BlackElo "2773"]
[Annotator "Krasenkow,Michal"]
[PlyCount "80"]
[EventDate "2020.06.06"]
[EventType "k.o. (rapid)"]
[EventRounds "3"]
[EventCountry "USA"]
[SourceTitle "CBM 196 Extra"]
[Source "ChessBase"]
[SourceDate "2020.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.07.31"]
[SourceQuality "1"]

{[%evp 0,80,21,30,23,-11,3,11,11,-17,-10,3,13,9,9,18,18,28,24,14,9,0,2,13,27,12,13,-9,-3,-23,-30,-16,26,-27,-13,-35,-54,-28,-36,-17,-35,-27,-38,-39,-16,6,-5,-6,5,0,65,-37,-18,0,-5,-9,0,0,0,0,0,-41,0,1,-2,-24,-34,-79,-77,-67,-59,-119,-77,-83,-81,-130,-124,-203,-222,-234,-240,-1775,-2020]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. Nc3 Nbd7 7. Qd3 {Not just protecting the c4 pawn but also preparing e2-e4. On the other hand, White's queen is more exposed to attacks here than on b3.} b6 {[%cal Rc8a6] Alternatives:} (7... c6) (7... a6) 8. cxd5 Nxd5 (8... exd5 9. O-O Bb7 10. Bf4 Nh5 (10... c5 11. Ne5 Re8 12. e3 c4 13. Qc2 Rc8 14. Rfd1 a6 15. b3 $14 {1-0 (20) Rahul,S (2430)-Barsegyan,H (2498) Montebelluna 2019}) 11. Bd2 Nhf6 12. Rac1 Re8 13. Rfd1 c5 14. Bf4 Ne4 15. Ne5 $14 {1/2 (24) Oparin,G (2613)-Van Foreest,L (2515) Skopje 2019}) 9. O-O Bb7 10. Rd1 {Preparing e2-e4, which didn't work at once:} (10. e4 $2 Nxc3 11. bxc3 Nc5) (10. Nxd5 {is rather harmless:} exd5 (10... Bxd5 $5 11. e4 Bb7 12. Rd1 c5 13. Qe2 cxd4 14. Nxd4 Qe8 15. Nb5 Ba6 16. a4 Nc5 17. Qg4 Rd8 $11 {1/2 (38) Yu,Y (2738)-Aronian,L (2775) Moscow 2019}) 11. Bf4 c5 12. b3 (12. dxc5 bxc5 13. Rfd1 Re8 (13... Nb6 14. Rac1 Re8 15. h4 h6 16. Ne5 Bd6 17. Qf5 Bxe5 18. Bxe5 Qe7 19. Bf4 Qxe2 $13 {1/2 (32) Nalbandian,T (2478)-Aroshidze,L (2393) Batumi 2003}) 14. b3 a5 15. Rac1 a4 16. Ne1 {0-1 (53) Firouzja,A (2702)-Aronian,L (2758) chess.com INT 2019} Nb6 $11) 12... a5 (12... Bf6 13. Rac1 Re8 14. Rfd1 a5 15. e3 a4 16. h4 h6 17. Bh3 $36 {[%csl Rd7] 1-0 (48) Dominguez Perez,L (2732)-Sargissian,G (2702) Huaian 2016}) 13. a4 (13. Rac1 a4 $11) 13... Bf6 14. Rfd1 cxd4 15. Nxd4 Nc5 16. Qb1 Re8 17. Ra2 {1/2 (58) Grischuk,A (2777)-Aronian,L (2773) lichess.org INT 2020} Bxd4 18. Rxd4 Ne6 $11) 10... N7f6 (10... c5 11. e4 Nxc3 12. bxc3 Rc8 13. Bb2 Qc7 14. Rac1 Rfd8 15. Qe2 cxd4 $6 (15... b5 $11) 16. cxd4 Qb8 17. Bh3 Rxc1 18. Rxc1 a6 19. d5 exd5 20. e5 $36 {1-0 (29) Navara,D (2717)-Buksa,N (2403) Caleta 2020}) 11. Nxd5 exd5 12. Bg5 h6 13. Bxf6 Bxf6 14. b4 c6 (14... c5 $6 15. bxc5 bxc5 16. Qa3 c4 17. Ne5 $14) 15. Rab1 b5 {[%cal Ya7a5] Black improves on the previous online game of the same players:} (15... Qe7 16. a4 Rfc8 17. Rdc1 Rc7 18. e3 g6 19. Qb3 Rd8 20. Ne1 Bc8 21. Nd3 Bf5 22. Rc2 c5 23. bxc5 bxc5 24. Rxc5 Rxc5 25. dxc5 Bxd3 26. Qxd3 Qxc5 $14 {1/2 (37) Grischuk,A (2777)-Aronian,L (2773) lichess.org INT 2020}) 16. a4 bxa4 17. Ra1 a5 18. Rxa4 axb4 19. Rxb4 Ba6 {The position has simplified. Black's backward c6 pawn is not enough for White to claim an advantage.} 20. Qd2 Qe7 21. e3 Bc4 22. Rdb1 Ra2 23. Qc1 c5 24. dxc5 (24. Rb7 Qd8 25. dxc5 Qc8 $11) 24... Qxc5 {Both sides play inaccurately, which is normal for a rapid game. The pin along the c-file will be annoying for Black.} (24... Bd3 $142 25. Rb7 Qe8 26. R1b3 Qa8 (26... Ra1 $6 27. Qxa1 Bxa1 28. Rxd3 {wins a queen but the resulting position is rather favorable for White, whose well-coordinated pieces will be stronger than Black's queen.}) 27. Bf1 Be4 $44) 25. Bf1 (25. Nd2 $142 $1 {, after which Black must play very accurately:} Rc8 26. Bh3 $1 Rf8 $1 (26... Rc7 $2 27. Rxc4 $1 dxc4 28. Rb8+ Kh7 29. Qb1+) 27. Nxc4 (27. Bf1 Rxd2 $1 {(a nice tactical trick; otherwise Black just loses a pawn)} 28. Rb5 $1 (28. Qxd2 Bxf1 29. Rxf1 Bc3 30. Rb5 $8 $11) 28... Qc7 $1 29. Qxd2 (29. Bxc4 Rxf2 $1 30. Kxf2 dxc4 $44 {[%csl Rf2]}) 29... Bxb5 30. Rxb5 d4 $5 ({even more accurate than} 30... Rd8) 31. exd4 Rb8 {, and Black reaches a draw without problems.}) 27... Ra1 $3 {(What??? Imagine finding this in a rapid game!)} (27... dxc4 28. Rxc4 {is a long torture}) 28. Rxa1 Qxb4 {- Black regains material and equalizes}) 25... Rc8 26. Rb8 Ra8 27. Rxa8 Rxa8 $11 {White can't make use of the pin anymore.} 28. Nd2 Rc8 29. Qc2 Qc6 30. Bh3 Ra8 (30... Be2 $11) 31. Rc1 Ra3 32. Qb1 Qa8 33. Bg2 {White tries to get something; instead, he faces problems.} Bd3 34. Qb4 (34. Qb6 $1 Ra1 35. Qc5 $11) 34... Ra1 (34... Bc3 $1 35. Qg4 $1 (35. Rxc3 Ra1+ 36. Bf1 Bxf1 37. Rb3 $1 (37. Nxf1 $4 Qa6 $19) 37... Bh3+ 38. Rb1 d4 $1 39. e4 $8 Qa6 $17 {[%csl Gd4,Rg1,Gh3]}) 35... Ra1 36. Rxa1 Qxa1+ 37. Nf1 g6 $15) 35. Rxa1 (35. Qc5 $11) 35... Qxa1+ 36. Bf1 (36. Nf1 $142) 36... Bc3 37. Qb3 (37. Qb8+ Kh7 38. Kg2 $1 Bf5 39. Qf4 $1 ({but not} 39. Nf3 $2 Bh3+) 39... g6 40. g4 $1 Be6 41. Nf3 $11 {was impossible to find under time pressure, of course.}) 37... d4 $1 (37... Qc1 {doesn't work due to} 38. Qxd5) 38. exd4 $2 {[%mdl 8192] Obvious but wrong.} (38. Kg2 $1 Qa8+ 39. Kg1 {was possible}) ({Another option was} 38. e4 Qc1 (38... Bxf1 39. Nxf1 {, and White should not lose}) 39. Qb8+ Kh7 40. Qc8 $1 g6 (40... Qxd2 41. Qf5+ $11) 41. Qf8 Bxd2 42. Qxf7+ {with a perpetual}) 38... Qc1 $1 $19 {This move perfectly works now and wins a piece.} 39. Qb8+ Kh7 40. Qf4 Bxd2 0-1

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.19"]
[Round "6.97"]
[White "Strenzke, Guenter"]
[Black "Richter, Goetz"]
[Result "1-0"]
[ECO "E38"]
[WhiteElo "1891"]
[BlackElo "2099"]
[Annotator "ChessBase II"]
[PlyCount "43"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

{[%evp 0,43,51,9,9,-11,-10,-7,4,-25,17,0,7,7,25,18,32,21,33,41,37,41,55,47,94,109,109,105,111,109,95,99,99,79,61,64,77,99,84,90,157,139,120,140,552,562]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. e3 Nc6 6. Nf3 cxd4 7. exd4 d5 8. a3 Be7 9. c5 O-O 10. Bd3 a5 11. Rb1 Ne4 12. Nxe4 dxe4 13. Bxe4 Nxd4 14. Nxd4 Qxd4 15. Be3 Qe5 16. Bxh7+ Kh8 17. Bd3 f5 18. O-O f4 19. Bd2 Bxc5 20. Be4 Bd4 21. Qd3 Rf6 $2 {[%mdl 8192] [#]} 22. Bc3 1-0

[Event "US Masters op"]
[Site "Hendersonville"]
[Date "2007.03.12"]
[Round "1"]
[White "Horwitz, Matthew"]
[Black "Warnk, Torsten"]
[Result "1/2-1/2"]
[ECO "C17"]
[WhiteElo "1829"]
[BlackElo "1996"]
[Annotator "ChessBase II"]
[PlyCount "136"]
[EventDate "2007.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

{[%mdl 8192][%evp 0,136,17,12,50,30,25,22,22,38,26,-1,41,29,69,44,32,29,50,53,63,52,54,46,92,43,104,98,101,85,110,115,115,77,173,85,144,58,74,100,108,82,103,66,78,78,94,94,89,90,90,69,82,69,78,83,113,94,113,114,143,111,114,114,116,87,103,102,109,66,56,56,59,59,69,21,46,59,81,0,13,47,50,48,61,55,59,59,153,54,134,137,385,-1,10,0,-26,-39,-41,-67,-66,-66,0,0,0,0,0,0,0,0,1,0,0,-19,-28,-31,0,-52,-20,-20,-2,-20,0,0,0,0,0,-33,-30,-30,-17,-30,0,-21,0,0,0,0,0] C17: French: 3 Nc3 Bb4 4 e5 c5 sidelines} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Be7 {last book move} 7. Nf3 {White threatens to win material: Nf3xd4} Nc6 8. Nbxd4 Nxd4 (8... Qb6 9. Nb3 $14) 9. Nxd4 $16 Qb6 10. Nb3 Qc7 11. f4 f6 (11... Nh6 $5 $14) 12. Bd3 $16 Bd7 (12... Nh6 $142 $5 13. Qh5+ Nf7 $16) 13. Qh5+ $18 Kf8 14. O-O-O (14. Bxh7 Be8 15. Qh3 fxe5 $17) 14... Be8 (14... Rc8 15. Kb1 $18 (15. Bxh7 {is the less attractive alternative} Be8 16. Qh3 Bg6 $17)) 15. Qf3 Rc8 16. Nd4 (16. Ba5 Qd7 $18) 16... Bf7 17. Rde1 Qb6 18. Be3 Bc5 19. Qf2 f5 (19... h5 20. f5 fxe5 21. Nxe6+ (21. fxe6 $6 Nf6 $14) 21... Bxe6 22. fxe6+ Nf6 23. Bf5 $16) 20. Rhf1 (20. g4 g6 $18) 20... Ne7 (20... Nh6 21. h3 $18) 21. Nb5 (21. g4 Bxd4 22. Bxd4 Qc6 $18) 21... Bxe3+ $16 22. Qxe3 (22. Rxe3 Rc5 23. Nd6 Nc8 24. Nxf7 Kxf7 $18) 22... Qxe3+ 23. Rxe3 Nc6 (23... a6 24. Nd6 Rc7 25. Be2 $16) 24. Nd6 Rc7 25. b3 (25. Bb5 Rg8 $16) 25... Nb4 26. Kb2 Ke7 (26... d4 27. Rh3 $16) 27. Rg3 g6 28. a3 Nc6 (28... Nxd3+ 29. cxd3 Be8 30. d4 $16) 29. c4 $18 a6 30. cxd5 (30. Rc1 $5 a5 $18) 30... exd5 $16 31. Rc1 Rb8 (31... d4 32. b4 $16) 32. a4 Be6 33. Be2 Kd7 34. Ka3 Nd4 35. Rxc7+ Kxc7 36. Rc3+ Kd7 37. Bf3 (37. Bf1 Nc6 $16) 37... b5 38. axb5 axb5 (38... Rxb5 39. Nxb5 Nxb5+ 40. Kb2 Nxc3 41. Kxc3 d4+ 42. Kxd4 Bxb3 43. Bd5 $16) 39. Kb2 (39. Kb4 $5 $16) 39... b4 {Black threatens to win material: b4xc3} 40. Rc5 {The isolani on d5 becomes a target} Nxf3 41. gxf3 Rb6 (41... Bg8 42. Ra5 $14) 42. Ra5 $16 Kc6 43. Ra7 Bd7 $2 (43... d4 44. Kc2 $16) 44. Nf7 (44. Kc2 Be6 $18) 44... Be6 (44... Rb8 $142 $5 $16) 45. Nd8+ $18 Kc5 $4 {the position was bad, and this mistake simply hastens the end} (45... Kb5 $142 46. Re7 Bc8 $18) 46. Nxe6+ (46. Re7 $142 {and the rest is a matter of technique} Bg8 47. Re8 $18) 46... Rxe6 $11 47. Rxh7 {A rook endgame occured} (47. Kc2 Kd4 48. Kd2 Rb6 $11) 47... Kd4 $15 48. Rb7 {White threatens to win material: Rb7xb4} Ke3 {Black threatens to win material: Ke3xf3} 49. Rxb4 d4 50. Kc2 (50. Kc1 d3 51. Kd1 Re7 $15) 50... Rc6+ (50... Ra6 $5 51. Ra4 Rb6 $17) 51. Rc4 $11 Ra6 52. Ra4 (52. Kd1 d3 53. Ra4 Rc6 $11) 52... d3+ (52... Rb6 53. Ra2 d3+ (53... Kxf4 $6 54. Ra5 $15) 54. Kd1 Rxb3 $19 (54... Kxf4 $6 55. Kd2 $15)) 53. Kd1 $11 Rb6 54. b4 Kxf3 55. Kd2 {White threatens to win material: Kd2xd3} Kxf4 56. Kxd3 Kxe5 {Black has a new protected passed pawn: f5.} 57. Ke3 Kf6 58. Kf3 Kg5 59. Kg3 Rd6 60. Ra3 Rb6 61. Rb3 Rb5 62. Rb2 Kf6 63. Kf3 g5 64. Kg3 Ke5 65. Kf3 Kd4 66. Rg2 g4+ {This push gains space} 67. Kg3 Kc3 {Black threatens to win material: Kc3xb4} 68. Rf2 Kd4 ({Not} 68... Rxb4 69. Rxf5 Kd3 70. Rf4 $16) 1/2-1/2

[Event "US Masters op"]
[Site "Hendersonville"]
[Date "2007.03.15"]
[Round "4"]
[White "Ho, Conrad"]
[Black "Dana, Maurice"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2201"]
[BlackElo "2205"]
[Annotator "ChessBase II"]
[PlyCount "93"]
[EventDate "2007.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

{[%mdl 8192] C47: Scotch Four Knights and Four Knights with 4 g3} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 Nxd5 6. exd5 Bb4+ 7. Bd2 Qe7+ 8. Qe2 Bxd2+ 9. Kxd2 Qxe2+ 10. Bxe2 Nb4 11. Rhe1 O-O 12. d6 {last book move} d3 13. Bxd3 (13. cxd3 cxd6 14. Nd4 d5 $16) 13... Nxd3 14. Kxd3 c5 (14... cxd6 $142 $5 15. Nd4 b6 $16) 15. Re7 $18 f6 16. h4 (16. c4 Rb8 $18) 16... h5 (16... b5 17. a4 bxa4 18. Rxa4 $16) 17. Rae1 b6 18. Ng1 (18. Nd2 Rf7 $18) 18... Ba6+ (18... f5 $5 $16) 19. c4 Rad8 20. Ne2 (20. Kc3 $5 $18) 20... f5 $16 21. Nf4 Rf6 22. Nxh5 Rxd6+ 23. Kc3 Rh6 $4 (23... g6 $142 {the rescuing straw} 24. Ng7 b5 25. cxb5 Bxb5 $14) 24. Rxg7+ $18 Kh8 25. Rg5 Rg8 26. Nf4 (26. Rxf5 $142 $5 {and White can already relax} d6 $18) 26... Rxh4 27. Ng6+ (27. Rxf5 Bb7 28. g3 Rh7 $18) 27... Rxg6 (27... Kh7 $5 28. Nxh4 Rxg5 29. Re7+ Kg8 30. Rxd7 Bxc4 $16) 28. Rxg6 $18 Rxc4+ 29. Kb3 Kh7 (29... Rh4 30. g3 Rh2 31. Re7 $18) 30. Rg5 (30. Rg3 $5 {seems even better} Rh4 31. Re7+ Kh6 32. Rxd7 Bc4+ 33. Ka3 Rd4 34. Rxa7 b5 $18) 30... Kh6 31. Rxf5 (31. Rg8 Rh4 32. f4 Kh7 $18) 31... Rg4 32. g3 Bc4+ 33. Kc3 Kg6 34. Rf8 (34. Rf3 a5 35. b3 Be6 $18) 34... b5 $2 (34... Bxa2 $142 $5 35. b3 Rb4 $16) 35. a3 Rd4 36. Re5 d6 37. Re3 a5 38. b4 axb4+ 39. axb4 Bd5 (39... Bf7 $5 40. Rd8 Rc4+ 41. Kd2 Rxb4 42. Rxd6+ Kf5 $18) 40. Rd8 $18 Bf7 (40... Bg2 $142 $18) 41. bxc5 Rc4+ 42. Kd2 dxc5 43. Rc3 (43. Rd6+ $142 Kg7 $18) 43... Ra4 $2 (43... Rxc3 $142 44. Kxc3 b4+ 45. Kb2 Kf6 $18) 44. Rd6+ Kg7 45. Rxc5 b4 (45... Be8 {doesn't change anything anymore} 46. Rc7+ Kf8 47. Rb7 $18) 46. Rd4 (46. Rc7 {keeps an even firmer grip} Ra2+ 47. Ke3 Ra3+ 48. Ke4 Rc3 $18) 46... Ra2+ 47. Rc2 (47. Rc2 b3 48. Rxa2 bxa2 49. Ra4 $18) 1-0

