Justin

   [Event "NED-ch55"]  [Site "Rotterdam"]  [Date "2000.05.07"]  [Round "1"]  [White "Nijboer, Friso"]  [Black "Tiviakov, Sergei"]  [Result "0-1"]  [ECO "B36"]  [WhiteElo "2540"]  [BlackElo "2567"]  [Annotator "Tsesarsky"]  [PlyCount "98"]  [EventDate "2000.05.07"]  [EventType "tourn"]  [EventRounds "11"]  [EventCountry "NED"]  [EventCategory "12"]  [Source "ChessBase"]  [SourceDate "2000.07.27"]   1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8.  Qxd4 Bg7 9. O-O O-O 10. Qe3 Be6 11. Rb1 Qb6 12. Qd3 Rfc8 13. b3 Nd7 (13... a6  14. Bd2 (14. Be3 Qa5 15. Bd2 $5 Qb6 (15... Qd8 16. a4 $1 (16. f4 b5 $132) 16...  Nd7 17. Nd5 Nc5 18. Qe3 a5 19. f4 Bd7 20. Bc3 Bxc3 21. Nxc3 Bc6 22. Bg4 $14 {  1-0 Korneev,Oleg-Antunes,Antonio/Benasque op (8) ;CBM 53 ext 1996 (41)}) 16.  Kh1 Bd7 17. f4 Bc6 18. Nd5 $1 Nxd5 19. exd5 Bd7 20. f5 $1 Bxf5 21. Rxf5 gxf5  22. Qxf5 $14 {[%cal Ge2d3]}) 14... Qd8 15. Rbc1 Bd7 16. a4 Bc6 17. Nd5 Nd7 18.  Bg5 f6 19. Be3 e6 20. Nc3 Nc5 21. Qc2 a5 22. Rfd1 Qe7 23. f3 $14 {1-0 Tukmakov,  Vladimir B-Yrjola,Jouni/Katerini op ;CBM 32 ext 1992 (41)}) (13... Qd8 14. Bg5  a6 15. a4 Nd7 16. Nd5 Bxd5 17. exd5 Bf6 18. h4 Qf8 19. Qe3 a5 20. Bg4 $14 {1-0  Mueller,Mat-Herbrechtsmeier,Christof/Bundesliga 9394 ;GER-chT 1994 (41)}) 14.  Nd5 (14. Be3 Ne5 15. Qd2 (15. Qd1 Qa5 16. Bd4 Nc6 17. Bxg7 Kxg7 $11 {0-1  Grabics,Monika-Lakos,Nikoletta/EU-ch U20 Girls (7) ;EXT 97 1995 (31)}) 15...  Qa5 16. Nd5 Qxd2 17. Bxd2 Kf8 $11) 14... Bxd5 15. exd5 Qa5 (15... Qd4 16. Qh3  Nc5 17. Be3 Qf6 18. f4 Qc3 19. Rfc1 Qf6 $132 {1/2-1/2 Krasenkow,  Michal-Khalifman,Alexander/RUS-ch Elista (8) ;CBM 50 1995 (24) This position  is equal. Par B and Q on the a1-h8 diagonal is very strong. White can't play  b3-b4 because of Nc5-a4 with good position and domination of Black pieces on  the black squares.-Tsesarsky}) 16. Bb2 (16. a3 Rc7 (16... b5 17. cxb5 Rc3 18.  Qd1 $16) 17. Qe3 (17. b4 Qa4 18. Re1 Ne5 19. Qe4 f5 20. Qe3 Qd7 $11 {[%csl Rc4]  }) 17... Bf6 (17... Kf8 18. f4 $14) 18. Rd1 (18. b4 Qa4 $11) 18... a6 $132)  16... Bxb2 (16... Qxa2 $2 17. Bxg7 Kxg7 18. Qc3+ Kg8 19. Bg4 Nc5 (19... f5 20.  Ra1 $18) 20. Bxc8 Rxc8 21. Rfe1 $16) 17. Rxb2 Qa3 $1 {Black was lucky to  change 3 pars of pieces and now White attack on Kg8 is not dangerous. In other  side, Black is ready to develop initiative on Queenside.} 18. Rd2 a5 19. Qe3 (  19. h4 a4 20. Qe3 axb3 21. axb3 Qb4 22. Bd1 b5 {And Black develop the  initiative on the Queenside than White on the Kingside faster.}) 19... Re8 20.  Bg4 Nf6 (20... Nc5 21. Rb1 Qb4 (21... a4 22. b4 Qxe3 23. fxe3 Ne4 24. Rd4 f5  25. Bf3 Ng5 26. c5 $14) 22. a4 f5 (22... Nxa4 23. Bd7 Nc3 24. Bxe8 Nxb1 25.  Qxe7 $3 $18) 23. Bd1 Nxa4 24. Bc2 Nc5 25. Qg5 $44) 21. Bh3 (21. Bd1 $132 {  [%cal Gh2h4,Gd1a4]} Qb4 22. a4 e6 23. dxe6 Rxe6 24. Qd4 Rae8 25. Bc2 $11) 21...  a4 22. g3 (22. Qb6 axb3 23. axb3 Qa5 24. Qxa5 Rxa5 25. b4 Ra4 26. Rb1 $11)  22... axb3 23. axb3 Qb4 24. Rc1 Ra3 (24... b5 25. Rdc2 Ra3 26. Rc3 $11 {[%csl  Yc4][%cal Gh3f1]}) 25. Rd3 b6 26. Kg2 (26. Rb1 $11) 26... Ra2 {Position is  equal: White haven't enough resourses for Attack on the Kingside, in other  side, White is able to defend the Queenside.} 27. Rd4 Qa3 (27... Ra3 28. Rc3  Ra1 (28... Rea8 29. c5 $16) 29. Qd2 (29. c5 $2 Qb5 $1 $19) 29... Ra2 30. Qxa2  Qxc3 31. Rd1 $11) 28. Rf4 {[%csl Rf6][%cal Gf4f6]} (28. Rb1 $11) 28... Qc5 (  28... Kg7 $2 29. Re1 Qc5 (29... Qa7 30. Rxf6 $18) 30. Qc3 {[%csl Re7][%cal  Ge1e7]} Qa5 31. b4 Qa3 32. Qd4 Qb2 33. Qxb6 $16) (28... Qb2 29. Rd1 Ra3 30. Rf3  {[%csl Gb3]} b5 $132) 29. Qe1 (29. Qc3 Rea8 30. b4 Qc7 31. Qe1 $132) 29... Raa8  30. b4 $11 {This P promotion don't change Position evaluation - equal.} Qc7 31.  Qd2 (31. Rc3 {[%cal Gc3e3,Ge3e7,Gf4f6]} b5 32. Re3 {[%csl Rf6]} Kf8 33. Qc3  bxc4 34. Rxc4 Qb7 35. Rd3 Ra2 36. Rc7 (36. Bc8 Qb5 $132) 36... Qb5 37. Bd7 Qb6  38. Rf3 Rea8 39. b5 Kg8 $132) 31... Ra7 32. Kg1 Rea8 33. c5 $2 $17 (33. Rd4 $11  ) 33... bxc5 34. bxc5 Ra1 (34... dxc5 35. d6 Qd8 36. Rxc5 (36. Bg2 Rb8 $19)  36... Qxd6 $1 37. Qxd6 exd6 38. Rc1 Kg7 39. Rd4 Ra1 $17) 35. Bf1 $2 $19 (35.  Rfc4 dxc5 36. Bg2 Qd6 $17 {And White must try to change Pd5 for Pc5 with 3P  against 4P with chances to draw.}) 35... Rxc1 36. Qxc1 Qxc5 37. Qxc5 dxc5 38.  d6 (38. Rc4 Ra5 39. Bg2 Ra1+ 40. Bf1 Nd7 $19) 38... Nh5 39. Rf3 exd6 40. Bc4  Ra7 41. h4 Kg7 (41... Ng7 $19) 42. g4 Nf6 43. g5 Ng4 44. Bd5 Ne5 45. Rf6 Ra1+  46. Kg2 Rd1 47. Rxd6 Nd3 {[%csl Rd5,Rg2][%cal Gd1d6]} 48. Rf6 Ne1+ 49. Kf1 Nc2+  0-1   [Event "RUS-ch"]  [Site "Elista"]  [Date "1995.??.??"]  [Round "8"]  [White "Krasenkow, Michal"]  [Black "Khalifman, Alexander"]  [Result "1/2-1/2"]  [ECO "B36"]  [WhiteElo "2590"]  [BlackElo "2655"]  [PlyCount "47"]  [EventDate "1995.10.??"]  [EventType "swiss"]  [EventRounds "11"]  [EventCountry "RUS"]  [Source "ChessBase"]  [SourceDate "1996.02.01"]   1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. e4 d6 5. d4 cxd4 6. Nxd4 g6 7. Be2 Nxd4 8.  Qxd4 Bg7 9. O-O O-O 10. Qe3 Be6 11. Rb1 Qb6 12. Qd3 Rfc8 13. b3 Nd7 14. Nd5  Bxd5 15. exd5 Qd4 16. Qh3 Nc5 17. Be3 Qf6 18. f4 Qc3 19. Rfc1 Qf6 20. Bg4 Rc7  21. f5 g5 22. Rf1 h6 23. Rbd1 Nd7 24. Bd4 1/2-1/2   [Event "Vienna"]  [Site "?"]  [Date "1873.??.??"]  [Round "?"]  [White "Rosenthal"]  [Black "Steinitz"]  [Result "0-1"]  [Annotator "03: Two Bishops V Bishop and Knight"]  [SetUp "1"]  [FEN "r1br2k1/ppp2pbp/6p1/8/2qN1P2/2P1B3/PP3QPP/R4RK1 b - - 0 1"]  [PlyCount "35"]  [Source "Hays Publishing"]  [SourceDate "1964.01.01"]   {[%csl Gd4,Ge5] Systematic use of the Bishop pair. Steinitz was the first to  show a method for the best utilization of the two Bishops. So far as is know,  it was in the present game that he first applied his system. The theory of  Steinitz applies to positions which are not close, but which, on the other  hand, are not yet completely open in character. White still has support points  at d4 and e5. The cornerstone of the Steinitz system is to deprive the  opponent of such support points by means of pawn advances. The hostile pieces  will thus be doomed to passivity, and the owner of the bishop pair should not  find it difficult to set a decisive attack in motion. His contemporaries  pointed out the weakness which these pawn advances must necessarily creat.  Only through the games of Steinitz was it realized that such weaknesses are  not so serious because two bishops can cover all the squares, being in this  way much more useful for neutralizing weaknesses than two Knights or Knight  and Bishop would be} {[%tqu "Apply Stenitz's theory","","",c5,"",10]} 1... c5 {  [%csl Gd4]} 2. Nf3 {[%tqu "Reduce the activity of the bishop","","",b6,"Puts  an end to any Bishop activity on the g1-a7 diagonal",10]} b6 {[%csl Gb6,Gc5]  Puts an end to any Bishop activity on the g1-a7 diagonal} 3. Ne5 Qe6 4. Qf3 Ba6  5. Rfe1 {[%tqu "Continue to deprive that Knight of squares","","",f6,"deprives  the Knight also of the e5 square",10]} f6 {[%csl Ge5,Gg5] deprives the Knight  also of the e5 square} 6. Ng4 {[%tqu "Be consistent","","",h5,"Drives the  Knight further back",10]} h5 {Drives the Knight further back} 7. Nf2 {[%tqu  "The a8-h1 diagonal looks inviting ... can you prepare a way to occupy it?","",  "",Qf7,"intending Bb7 inducing weaknesses on this diagonal",10]} Qf7 {[%cal  Gb7f3] intending Bb7 inducing weaknesses on this diagonal} 8. f5 {It is  understandable that white should strive for some counterplay, but in so doing  he only weakens his position.} (8. b3 {[%cal Gc3c4,Ya1d1,Re3c1,Rc1b2]}) 8... g5  9. Rad1 Bb7 (9... Qxa2 10. Qxh5) 10. Qg3 {[%tqu "Pick on one of White's  incurable weaknesses","","",Rd5,"This is the positional refutation of 8. Pf5.  The f-pawn is now incurably weak",10,Qxa2,"",0]} Rd5 $1 {[%csl Gf5] This is  the positional refutation of 8. Pf5. The f-pawn is now incurably weak} (10...  Qxa2 11. Qc7 Rxd1 12. Rxd1 Bd5 13. Qd7 $132) 11. Rxd5 Qxd5 12. Rd1 (12. Qh3 $2  g4) 12... Qxf5 13. Qc7 Bd5 14. b3 {[%tqu "More tempo please","","",Re8,"",10]}  Re8 {[%csl Ge3]} 15. c4 Bf7 16. Bc1 {[%tqu "Piece placement","","",Re2,"",10]}  Re2 {[%csl Ga2,Gf2][%cal Ye2a2,Ye2f2]} 17. Rf1 {[%tqu "Can you see a fork?","",  "",Qc2,"",10]} Qc2 {[%csl Rc1,Rf2]} 18. Qg3 (18. -- Rxf2 19. Rxf2 Qxc1+) 18...  Qxa2 0-1   [Event "Teplits-Schonau"]  [Site "?"]  [Date "1922.??.??"]  [Round "?"]  [White "Wolf"]  [Black "Rubinstein"]  [Result "0-1"]  [Annotator "03: Two Bishops V Two Knights"]  [SetUp "1"]  [FEN "r2n1r2/ppp1q1pk/3p1n1p/4p1p1/2BPP1P1/2P3BP/P1P2P2/R2QR1K1 b - - 0 1"]  [PlyCount "87"]  [Source "Hays Publishing"]  [SourceDate "1964.01.01"]   {The Knights in a closed position It is evident that in a struggle against  the Bishop pair the two Knights will do best in a closed position such as this  one. Moreover, in this case the presence of the support point at f4 is a  factor which strongly favours the Knights. The practical outcome of such a  position is that White will have to look for a favourable moment to exchange  one of his Bishops for a knight, bringing about a Bishop versus Knight struggle  } {[%tqu "Begin a maneouvre for control of f4","","",Nf7,"",10]} 1... Nf7 {  [%csl Gf4][%cal Yf7h8,Yh8g6,Yg6f4]} 2. Qf3 Rae8 (2... -- {White has the choice  of three schemes: 1. He can exchange on Bishop at once (Bxf7) and then  undertake the fight with good Bishop (3. Pf3!) against Knight 2. He can  exchange the other Bishop for a Knight as soon as it appears on f4, but then  he will have a Bad Bishop against Knight. 3. he can leave things as they are  and keep both Bishops; but in this case he must work out some way of getting  them into action. Scheme 1 is White's best choice} 3. Bxf7 Rxf7 4. dxe5 dxe5  5. Qf5+ {[%csl Ge5]}) 3. Qe3 b6 (3... -- {[%cal Ge3a7]} 4. dxe5 dxe5 5. Qxa7) (  3... exd4 4. cxd4 Nxe4 5. Qxe4+ Qxe4 6. Rxe4 Rxe4 7. Bd3 Rfe8 8. f3 $18) 4. Bb5  {Abadoning the possibility of scheme 1.} Rd8 5. a4 {[%tqu "Do you fear the  opening of the a-file or play for ... Nf4","","",Nh8,"Black doesn't fear the  opening of the a-file else he would have played Pa5",10]} Nh8 $1 {Black  doesn't fear the opening of the a-file else he would have played Pa5} 6. a5 Ng6  7. f3 Nf4 8. Bf1 {[%tqu "Ideally Black would like to play his other Knight to  g6. Can you see a deep maneuvre to make this plan possible","","",Kh8,"yes,  after ... Kh8, Rf7, Nh7-f8-g6",10]} Kh8 $1 {[%cal Gf6h7]} 9. Bxf4 {So White  chooses scheme 3 and the chances swing definitely in Black's favour. If White  puts his bishop on g1-a7, it is obstructed by Black's b-pawn. If he works it  round to a3-f8, Black will play ... Pc5. In either case the Bishop bites on  granite} (9. -- Rf7 {[%csl Rf4][%cal Gf6h7,Gh7f8,Gf8g6]} 10. -- Nh7 11. -- Nf8  12. -- N8g6 13. -- Rdf8) 9... gxf4 10. Qf2 {Closes up the position still more,  and fixes yet another pawn on the same colour as his own bishop} {[%tqu  "Secure a definite pawn structure","","",g5,"",10]} g5 11. d5 {[%csl Gc5]} (11.  axb6 $2 cxb6 {[%cal Gc8c3]}) (11. Bc4 $142) {[%tqu "Initiate the breakthrough",  "","",h5,"Now that the centre is secure Black plays for an opening of the  h-file",10]} 11... h5 12. Bg2 {[%tqu "Clear the h-file","","",Kg7,"",10]} Kg7 {  [%cal Gh8h1]} 13. Qe2 {[%tqu "Be consistent with the plan","","",Rh8,"",10]}  Rh8 14. Kf2 (14. Qa6 Kg6 15. Qxa7 Ra8 16. Qb7 Rhb8 17. Qc6 bxa5) 14... Ra8 15.  Reb1 {[%tqu "There are new outposts on the Queenside","","",Nd7,"",10]} Nd7 {  [%csl Gc5]} 16. Qb5 hxg4 17. hxg4 Nc5 18. Rh1 {[%tqu "What's the rule in the  square to occupy on a file?","","",Rh4,"",10]} Rh4 $1 19. Rxh4 gxh4 {[%cal  Gh4h3]} 20. Bh3 (20. -- h3 21. Bxh3 Qh4+ 22. Kg2 Qg3+ $19) {[%tqu "Create  passed pawns","","",bxa5,"Getting a passed pawn on the a-file as well",10]}  20... bxa5 {Getting a passed pawn on the a-file as well} 21. Qxa5 (21. Rxa5 a6  22. Qb1 Qd8 $17 {[%cal Gb8b1]}) 21... Qd8 22. Rb1 Rb8 23. Rb4 a6 24. Ke2 Rb6  25. Qa1 Kg6 26. Kd2 {[%tqu "Can you kill any White counterplay on the  Kingside","","",Kg5,"protects the h-pawn and an eventual Pg5 depriving White  of any counterplay",10]} Kg5 {[%csl Gh4] protects the h-pawn and an eventual  Pg5 depriving White of any counterplay} 27. Rb1 (27. Qa5 Qb8 28. Qa3 (28. Ke2  Qa7 29. -- Nb7 30. Qa4 Rxb4 31. cxb4 Qe3+) 28... Qa7 29. Qa5 Nb7 30. Qa4 Rxb4  31. cxb4 Qf2+) 27... Qb8 28. Rh1 (28. Kc1 Rxb1+ 29. Qxb1 Qxb1+ 30. Kxb1 {[%cal  Gh4h3,Ga6a5] lossed ending due to passed pawns on both flanks} Na4 31. c4 Nc3+  32. Kc1 Ne2+ 33. Kd2 Ng1 34. Bg2 h3 35. Bh1 a5 $19) {[%tqu "Is there a tactic  to allow the a-pawn to race?","","",a5,"",10]} 28... a5 $3 29. Bg2 (29. Qxa5  Rb2 {[%cal Gc5b3]} 30. Qa3 Nb3+ 31. Kd3 Qb5+ 32. c4 Qb6 {[%csl Yc2,Yc4][%cal  Gb6e3]}) 29... a4 30. Qe1 Qh8 31. Qc1 {[%tqu "Rooks belong where in regards to  passed pawns?","","",Ra6,"",10]} Ra6 32. Bf1 Ra8 33. Bc4 a3 34. Ba2 Qh7 35. Rh3  Nd7 36. Qf1 Qh8 37. Rh1 Nc5 38. Qc1 {[%tqu "The breakthrough seems difficult ..  . can you sacrifice to clear lines?","","",Rb8,"Black sacrifices both his  passed pawns in order to force his pieces into the enemy position",10]} Rb8 $3  {[%csl Gb2][%cal Yb8b2] Black sacrifices both his passed pawns in order to  force his pieces into the enemy position} 39. Qxa3 Ra8 40. Qb2 {[%tqu "The  Queen has been diverted from the Kingside ... hence?","","",h3,"",10]} h3 41.  Bc4 {[%tqu "Penetrate Kingside","","",Qh4,"",10]} Qh4 42. Be2 {[%tqu "So many  holes on the Kingside ... keep penetrating","","",Qf2,"",10]} Qf2 43. Rxh3 Qe3+  44. Ke1 {[%tqu "The final blow!","","",Na4,"The Knight gives the final blow.  This game was honoured with a brilliancy prize",10]} Na4 {[%csl Gc3] The  Knight gives the final blow. This game was honoured with a brilliancy prize}  0-1   [Event "Margate"]  [Site "?"]  [Date "1936.??.??"]  [Round "?"]  [White "Capablanca"]  [Black "Milner-Barry"]  [Result "1-0"]  [Annotator "03: Two Bishops V Two Knights"]  [SetUp "1"]  [FEN "r1r5/ppq2k2/2pp2pp/4nn2/1PPBB2P/6P1/P2Q1P2/1RR3K1 w - - 0 1"]  [PlyCount "23"]  [Source "Hays Publishing"]  [SourceDate "1964.01.01"]   {The Knights in an open position. The undermining of support points In this  position we see two centrally placed Bishops facing two centrally placed  Knights. The contrast is obvious. The Bishops would still sweep the centre of  the board if they stood on h1 and a1, but the Knights must have support points  if they are to maintain themselves in play. The support points here are  insecure, and are speedily undermined.} {[%tqu "Do you preserve the Bishop or  exchange them?","","",Ba1,"Preserving the the Bishop from exchange",10,Bxf5,"",  0]} 1. Ba1 {Preserving the the Bishop from exchange} (1. Bxf5 $4 Nf3+ {[%csl  Gd2,Gg1]}) 1... Rg8 (1... h5 2. Bxe5 dxe5 3. Bxf5 gxf5 4. Qg5 $16) {[%tqu  "Undermine the support points of Black's Knights","","",h5,"",10]} 2. h5 $1 {  [%csl Rf5,Gg6]} Raf8 {[%csl Rf5,Gg6]} {[%tqu "Can you spot more undermining?",  "","",c5,"Undercutting the other Knight as well",10]} 3. c5 {[%csl Gd6,Re5,Rf5,  Gg6] Undercutting the other Knight as well} d5 {[%csl Rd5] Permits a decisive  combination; but in any case the Bishops will now control the whole board} {  [%tqu "Do I have to prompt you? Double attack","","",Bxd5+,"",10]} 4. Bxd5+ {  [%csl Ge5,Gf7]} cxd5 5. Qxd5+ Kf6 {[%tqu "The obvious follow up","","",f4,"",  10]} 6. f4 Qc6 7. Bxe5+ Ke7 8. Bd6+ Nxd6 9. cxd6+ Qxd6 {[%tqu "How do the  pieces work?","","",Re1+,"",10]} 10. Re1+ Kd7 11. Qxb7+ Qc7 12. Rbd1# 1-0