[Event "30min+20s 4core"] [Site "?"] [Date "2020.12.16"] [Round "1"] [White "Thinker 5.4D Inert x64"] [Black "SultanKhan 2.0"] [Result "0-1"] [ECO "A70"] [Annotator "Nezhman"] [PlyCount "94"] [EventDate "2020.??.??"] {[%evp 0,94,19,31,14,-14,43,37,54,74,78,63,58,76,120,120,103,70,104,66,72,66, 63,75,81,80,84,88,66,53,90,90,81,67,65,57,99,68,68,63,61,37,28,31,46,41,38,0,0, -18,18,-65,-12,-43,-89,-90,-67,-67,-35,-53,-37,-23,57,-14,-30,-30,0,0,-65,-28, 43,-74,-26,-48,-93,-83,-41,-58,-79,-100,-119,-158,-124,-131,-124,-131,-104, -232,-232,-385,-434,-443,-534,-511,-336,-344,-308]} 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 a6 $5 8. a4 Bg4 9. Be2 Bxf3 10. Bxf3 Nbd7 11. Bf4 Qc7 12. O-O Bg7 13. a5 $5 O-O 14. Qc2 $5 Rfb8 $5 {a promising novelty} 15. Be2 Ne8 16. g4 $5 {an original idea by Thinker, but not followed up correctly} Qd8 $1 17. g5 b5 18. axb6 Rxb6 19. Na4 $2 {the Kn is misplaced here; White is playing on the wrong side of the board} ({more consistent was} 19. h4 $5 Rab8 20. Ra2 Rb4 21. Kg2 $5 $13) 19... Rb7 20. Bd2 Bd4 $1 {this achieves more than just pinning the f-pawn} 21. Nc3 $2 {nevertheless, it was better to move the King - unpin and get ready to launch a K-side pawn storm} ( 21. Kh1 $5) (21. Kg2 $5 Ng7 22. f4 f5 $5 (22... f6 23. h4 Rab8 24. Rae1 $5 f5 $5 $44 25. exf5 Nxf5 26. Bg4 Rxb2 $5 27. Nxb2 Rxb2 28. Qc1 Qa8 $5 $44) 23. Rae1 fxe4 24. Bg4 Rab8 25. Qxe4 Nf8 26. f5 gxf5 27. Bxf5 Nxf5 28. Qxf5 Ng6 {again with a very double-edged position}) 21... Rab8 {[*see note at the end]} 22. Ra2 $6 {[#]} h6 $3 {[%mdl 2628] a brilliant sac, well prepared by the crafty Bg7-d4 and Qc7-d8 before that} 23. gxh6 ({it may have been better was to decline with} 23. h4 $5 hxg5 24. Bxg5 Ndf6 $5 (24... Nef6 25. Bxa6 Ne5 $3 26. Kg2 $1 (26. Bxb7 $4 Qd7 $19) 26... Qd7 27. Be2 Nh5 28. f4 $2 (28. Bc1 $5 $15) 28... Nc4 $3 29. Bxc4 Qg4+ 30. Kh2 Qg3+ 31. Kh1 Qh3+ 32. Qh2 Ng3#) 25. Bxa6 Rb4 26. Be2 Qd7 $1 (26... Ng7 $5 27. h5 $5 gxh5 28. Kg2 $1) 27. Kg2 Ng7 $5 $40 ( 27... Ng4 28. Qd2 $5) 28. Rfa1 Qe8 $1 29. Bf3 Ngh5 {and Black has strong attacking prospects} 30. Qe2 Kg7 $5 {planning} 31. Z0 Qe5 $1) 23... Qh4 { The Black Queen's presence slants the board towards the White Kingside} 24. Kh1 Nef6 25. f4 Qh3 26. Qc1 Ng4 27. Bxg4 Qxg4 28. Qd1 Qh4 29. Bc1 Nf6 {61} 30. Qf3 Rb3 {in typical fashion, Khan is using the whole board to pressure the opponent } 31. e5 Ng4 32. Qg3 Qh5 33. exd6 Nxh6 34. Qf3 Qf5 35. Qe4 $6 Qd7 $1 {Black is maximizing the activity of his pieces, not caring about small details such as pawns} 36. Rxa6 Nf5 37. Qf3 Kg7 $1 $19 {a decisive King lift! - the Black Rooks can soon dominate the h-file} 38. Rd1 Nxd6 39. Ra2 Rh8 40. Qg2 Nf5 41. Qg4 Rh4 42. Qg2 Rb8 $1 {the other Rook becomes available for K-side play while still eyeing the b-file} 43. b4 {seeking desperate counterplay, but White is doomed} (43. Z0 Rbh8 {and} 44. Z0 Ng3+ {were coming}) 43... Bxc3 44. bxc5 Qb5 45. Qf3 Bd4 46. Rg2 Qc4 47. Ba3 Rb3 {0-1 A great display of power chess on both flanks, from the Black side of a Benoni (a Benoni-dream position!) against a capable engine that's probably stronger than the human WCh. [*what's interesting is that further analysis suggests that 21...h6!!, a move earlier, was perhaps even stronger (hah!)]} 0-1