In this game we see the other side of the Isolated d-Pawn...black wins.
[Event "Offerspill Invitational, Oslo"]
[Site ""]
[Date "2020.06.10"]
[Round "?"]
[White "Aleksander Fossan"]
[Black "Kristian Holm"]
[Result "0-1"]
[ECO "D40"]
[Annotator "Stockfish 18"]
[PlyCount "82"]
[EventDate "2020.06.10"]
{D40: Queen's Gambit Declined: Semi-Tarrasch} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4.
c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O Nc6 10. a3 b6 11.
Re1 Bb7 12. Qd3 Rc8 {Note the similarities between this position and the Szabo
- van Seters game in the previous post.} 13. Ba2 {This is the thematic move
where white intends to set up the battery of Q+B on the b1-h7 diagonal. White
has also tried 13.Bg5 but it has been considerably less successful.} h6 14. Be3
Bd6 15. Rad1 Ne7 {[%mdl 32] Black is preparing a solid blockade of the d-Pawn.
While white's position is solid he has little prospects of launching a
successful K-side attack.} 16. Ne5 Ned5 17. Bd2 (17. Bb1 {is not playable.}
Nxc3 18. bxc3 Be4 19. Qd2 Bxb1 20. Rxb1 Ne4 {wins the c-Pawn.}) 17... Re8 {
White has what would probably be better options tan what he now plays/} 18. Qh3
{While this move cannot be classified as a mistake it allows black to change
the P-formation and put white on the defensive.} (18. Nxd5 Nxd5 19. Bb1 f5 20.
g4 {with some attacking prospects although black should be able to defend
himself.}) (18. f4 a6 19. f5 {Black has no real way of securing an advantage
and the chances are equal.}) 18... Nxc3 19. bxc3 {Although it is only
temporary this, the Isolated Pawn Pair, is another typical P-formation. Ir
generally arises, as it does here, from a N blockading an Isolated d-Pawn is
exchanged. Often the Ps on c3 and d4 are a serious weakness if the opponent
can blockade the c-Pawn and attack it. It also offers the opponent a spatial
advantage in the Q-side. Additionally, the isolated a-Pawn is weak.} Ne4 {
This is far better than grabbing the a-Pawn and risk getting skinned alive.} (
19... Bxa3 20. Bxh6 gxh6 21. Re3 h5 22. Qg3+ Kf8 23. Qf4 Ke7 24. d5 Bd6 25. Rf3
Bxe5 26. Qxe5 Nxd5 27. Qxh5 Rf8 28. c4 Nf6 29. Rxf6 Qxd1+ 30. Qxd1 Kxf6 {
White's Q has a chance of prevailing against the two Rs.}) 20. Bb1 {It would
probably have been better to have tried to advance the f-Pawn f4- and f5 which
is more active than this B retreat which offers few prospects in this position.
} Nxd2 21. Rxd2 Bxe5 {Taking on a3 would greatly enhance white's prospects.} (
21... Bxa3 22. Qd3 {Completely justifying his 20th move.} f5 23. Ra2 Qe7 24. g4
{and white has seized the initiative!}) 22. Rxe5 Qd6 {After this all of the
defects of the Isolated Pawn Pair are clearly seen.} 23. Qd3 Qxa3 {It's still
wrong to grab the a-Pawn! Fortunately for black his opponent misses the chance
to equalize.} (23... Qc6 {Threatens mate and wins the P on c3.} 24. f3 Qxc3 {
and black is winning.}) 24. Qh7+ Kf8 {How does white meet the threat of ...
Qc1+?} 25. Rde2 {[%mdl 8192] Not this way!} (25. Rd1 Rxc3 26. Qh8+ Ke7 27. Qxg7
Kd8 (27... Rc1 {is a tactucal blunder...} 28. Rxe6+ Kxe6 29. Qxh6+ Kd7 30. Bf5+
Kc7 31. Rxc1+ {White is winning.}) 28. Qf6+ Qe7 29. Qxh6 {White is better.}) (
25. Rd1 Qxc3 {This is the correct cpature, but white is equal after} 26. Qh8+
Ke7 27. Qxg7 Bd5 {White threatened to sacrifice his R on e6.} 28. Bg6 {White's
Q, R and B working togeyjer assure him of at least equality.}) 25... Rxc3 26.
Qh8+ Ke7 27. Qxg7 Rc1+ 28. Re1 Rxe1+ 29. Rxe1 Qa5 30. Rd1 (30. Re3 {Ublike in
the previous variations white can't get his pieces coordinated because after}
Qg5 {white has to exchange Qs and the ending is clearly lost.}) 30... Qg5 31.
Qxg5+ hxg5 {[%mdl 4096] The material is equal, but black demonstrates that the
ending is a clear win for him because of white's weak Ps.} 32. f3 Kd6 {Both Ks
approach the center.} 33. Kf2 Rc8 34. Be4 Bd5 35. Rb1 f5 36. Bd3 Rc3 37. Ke2
Ra3 38. Rb2 Ra4 39. f4 gxf4 (39... Bxg2 40. Kf2 Bd5 41. fxg5 Rxd4 {is also
winning.}) 40. h4 Rxd4 41. h5 {The P poses no threat.} f3+ {[%mdl 512] White
resigned. Instructive play by Holm. Also, kudos to Fossan for realizing the
ending was lost.} (41... f3+ 42. Kf2 Rh4 43. gxf3 Rh2+ 44. Kg3 Rxb2 45. h6 {
Black to play and win.} f4+ (45... e5 {also works.} 46. Bxf5 Bg8 47. h7 Bxh7
48. Bxh7 a5 {and wins.}) 46. Kh3 e5 47. h7 Be6+ 48. Kh4 Rh2+ 49. Kg5 a5 {etc.})
0-1
No comments:
Post a Comment