[Event "Dhaka"] [Site "Dhaka"] [Date "1993.??.??"] [Round "?"] [White "Rahman, Ziaur"] [Black "bin-Sattar, Reefat"] [Result "0-1"] [ECO "E97"] [WhiteElo "2430"] [BlackElo "2255"] [Annotator "Martin"] [PlyCount "92"] [EventDate "1993.??.??"] [EventType "tourn"] [EventRounds "11"] [EventCountry "BAN"] [EventCategory "7"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 e5 6. Be2 Nc6 7. d5 Ne7 8. O-O O-O 9. a4 a5 10. Ne1 Nd7 11. Nd3 f5 12. f3 f4 13. b3 g5 14. Ba3 Rf7 15. c5 Nf6 16. b4 Bf8 17. cxd6 cxd6 18. bxa5 h5 19. Nf2 Ng6 20. Bb4 Rg7 21. h3 Nh4 22. Nb5 {The test diagram position has been reached. This is a typical King's Indian Defence position where White is attacking on the queenside and Black on the kingside. Each move is critical in these lines and Black often sacrifices material to open White's defences. Option D is considered correct to open lines although Option B almost works!} g4 $1 {Black's pieces have reached their best squares and is ready for this move which is crying out to be played. Black is not necessarily any better with accurate play by White but Black's game is easier and much more fun to play. One inaccurate move by White and it is often game over, whereas an inaccurate move by Black often does not have the same immediate consequences. The rest of the game is not for the faint-hearted and we do not expect the moves to be fully understood. However, it is a great illustration of Black's attacking chances after g4.} ({Option A} 22... b6 {It seems inconsistent to help White open lines further on the queenside and move the attacking black queen away from the kingside.After} 23. axb6 Qxb6 24. a5 Qd8 {only White has gained ground.} (24... Qe3 $2 {to remain on the g1 to a7 diagonal allows} 25. Bd2 {Oops!})) ({Option B} 22... Nxf3+ { This almost works but after} 23. gxf3 g4 24. fxg4 hxg4 25. hxg4 Nh5 (25... Nxg4 26. Nxg4 Qh4 {This looks scary but after} 27. Rf2 Bxg4 28. Bxg4 Rxg4+ 29. Qxg4+ $1 Qxg4+ 30. Rg2 {White is simply a piece ahead.}) 26. Ra3 Ng3 27. Kg2 $1 Rh7 28. Rxg3 {Now is the time to sac back.} fxg3 29. Nh3 Qh4 30. Rh1 {and the attack is petering out when White's 2 minor pieces for Black's rook are much stronger.}) ({Option C} 22... Ne8 {This seems to be an admission of defeat and it gives White extra time to coordinate his forces on the queenside. The knight is needed for the attack on the kingside.} 23. Rc1 Bd7 24. Qb3 Be7 25. Rc3 {White's queenside play is stronger than Black's kingside attack which is yet to materialise.}) ({Option E} 22... Bd7 {seems a bit slow and allows White to stall Black's g4 push with} 23. Be1 (23. Nxd6 {is indeed worse after} Qb8 24. Rb1 Bxd6 25. Bxd6 Qxd6 {when Black's extra piece should count for something.}) (23. Rb1 {To defend the bishop and threaten Nxd6 is another option.}) 23... g4 24. hxg4 hxg4 25. fxg4 Be7 26. Ra3 {which is similar to the game except Black's attack has been slowed down.}) 23. fxg4 hxg4 24. hxg4 { White has won a pawn but Black has all the exciting options.} (24. Bxg4 { to swap off the bad bishop is another logical try. After} Bxg4 25. hxg4 Rc8 26. Ra3 Qd7 {it is still a tactical bloodfest where the better tactical player will win.}) 24... Nh5 $1 25. Ra3 {correct defence.} ({Most players would probably not play} 25. gxh5 {as} Rxg2+ {looks strong e.g.} 26. Kh1 Rg3 (26... Qg5 27. Ng4 Kh8 {might also win.}) 27. Rg1 Nf5 $1 {This is crazy chess engine analysis but Black is winning!} 28. Rg2 Rxg2 29. exf5 Rg3 {when there is no defence to Qh4+.}) (25. Nh1 {may also hold e.g.} Nxg2 $5 (25... Nf6 {can also be tried but probably a draw with best play, likewise}) (25... Qg5) 26. Kxg2 Qh4 27. Qe1 f3+ 28. Bxf3 Nf4+ {could be a draw by perpetual check if Black chooses.}) 25... Ng3 26. Rxg3 {Again correct defence, the knight was exerting too much pressure on g3.} fxg3 {This pawn on g3 generates so many attacking possibilities for Black for the rest of the game.} 27. Nh3 (27. Nh1 {might be slightly better to remove Black's dangerous g-pawn and would have certainly been the safer option. After} Qg5 28. Nxg3 Qe3+ 29. Kh2 Qh6 30. Nh5 (30. Kg1 Qe3+ $11) 30... Nxg2 31. Rxf8+ (31. Rf6 Qg5 32. Rxf8+) 31... Kxf8 32. Nxd6 Kg8 33. Bd2 Nf4 {when the position still looks wild and unresolved. However, chess engines suggest it is level!}) 27... Ng6 {The knight retreats to make room for the black queen to enter the fray.} 28. Qd3 $6 {Up to this point White has been playing well but it is always hard to continuously find good defensive moves. The queen is needed to keep an eye on the g4 pawn. White starts to buckle.} (28. Bd2 $1 {is stronger to answer} Qh4 {with} ({Better is} 28... Nf4 29. Nxf4 exf4 30. g5 {to prevent Qh4} (30. Rxf4 Qh4 $17) 30... Qxg5 31. Rxf4 Qe5 32. Qf1 Bd7 33. Qf3 {which is level ish with chances for both sides.}) 29. Bg5) ({Another option for White is} 28. Qe1 Qh4 29. Bd2 Bxg4 30. Bg5 Qh5 31. Bxg4 Qxg4 32. Rf3 Nh8 33. Rxg3 Qh5 34. Bd2 Rc8 {when the position is still unclear.}) 28... Qh4 29. Rxf8+ {This exchange sac helps Black even though it looks as though White is crashing through on the queenside. The kingside attack is now irresistible.} (29. Be1 {allows} Nf4 $19) (29. Bd2 $1 Bxg4 30. Bg5 Bxe2 31. Qxe2 Qh7 32. Qe3 Rc8 {when there are tactics all over the board but Black might be better.}) 29... Nxf8 30. Nxd6 Ng6 (30... Bxg4 {may also be possible. After} 31. Bxg4 Qxg4 32. Nf5 {threatening Nh6+} Rh7 33. Qxg3 Qxg3 34. Nxg3 Rc7 {The 2R are stronger than the B+N+3P but the position involves fine judgement.}) 31. Bd2 {to deter Black from playing Nf4} (31. Nxc8 {looks logical to remove Black's strong attacking piece and put pressure on the g4 pawn but it now gives Black opportunities down the c-file and creates back rank threats. After} Rxc8 32. Bd2 {to reduce the power of Black's next move.} Nf4 33. Bxf4 exf4 34. Bf1 {to cover Rc1+ but now} f3 $1 (34... Qxg4 {also wins. }) 35. Qxf3 Qxg4 36. e5 Qd4+ 37. Kh1 Rf8 38. Qe2 Rgf7 $19) 31... Nf4 {but he plays it anyway!} 32. Bxf4 exf4 33. e5 (33. Nf5 {was probably White's last chance as once the g-pawn falls in the game the end is near. After} Bxf5 34. gxf5 {White is ahead on material but Black has so many threats particularly on the dark squares and back rank. However, he still needs to play accurately. e. g.} Qf6 35. Nxf4 Qh4 36. Nh3 Re8 {Black has given up the f-pawn to put pressure on White's e-pawn.} 37. Bf3 Rc7 38. Qd2 Rec8 {when Black is crashing through. This is an incredible position. White has a B+N+4P v 2R but cannot defend his back rank weakness!}) 33... Bxg4 {Just in time before the White pawn reaches e6.} 34. Nf5 (34. Bxg4 Qxg4 35. Nf5 Rh7 $1 {threatens f3 and Rxh3. }) 34... Bxf5 35. Qxf5 Rf8 36. Qe6+ Kh8 37. Qd6 (37. Bf3 Rc7 $1 $19 { exploiting White's back rank weakness.}) 37... Rc8 {White's back rank is so weak.} 38. Qb4 Qg4 {Very clever!} 39. Qe1 ({If} 39. Bxg4 Rc1+ {mating!}) 39... f3 {Another fine move as it opens up the possibility of playing Qd4+.} 40. Bxf3 Qd4+ 41. Kh1 Qb2 {threatening Rc1.} 42. Bd1 Rc1 43. Qf1 Rf7 {Black has so many winning options but this looks the most clinical and fancy!} 44. Qxf7 Rxd1+ 45. Ng1 Rxg1+ 46. Kxg1 Qd4+ {There is no defence to Qd1+ mating.} 0-1