Showing posts with label Ponziani opening. Show all posts
Showing posts with label Ponziani opening. Show all posts

20.11.15

The Modern Game of Zugzwang

In Reykjavik everything is expected. More and more excellent games are produced, like the following one:
A game that I liked (ChessBase 13)

[Event "Open European Team Championship"]
[Site "?"]
[Date "2015.11.16"]
[Round "4.1"]
[White "Jobava, Baadur"]
[Black "Saric, Ivan"]
[Result "1-0"]
[WhiteElo "2668"]
[BlackElo "2652"]
[Annotator "Bojkov, Dejan"]
[PlyCount "115"]
[EventDate "2015.??.??"]
[WhiteClock "0:38:47"]
[BlackClock "0:29:55"]

1. e4 e5 2. Nf3 Nc6 3. c3 {Diagram [#] You did not expect Jobava to play the
Ruy Lopez, did you? Ponziani is so much more fun than 20-25 moves of theory...}
Nf6 {The main move. According to my Megabase Saric had never played against
this opening in official game. But he live-witnessed Carlsen's win against Hou
Yifan in Wijk.} 4. d4 Nxe4 ({Actually, Jobava had a game in Ponziani this year
already, but opponent deviated from the main paths with} 4... d6 5. Bd3 Be7 6.
O-O O-O 7. Re1 Bg4 8. d5 Nb8 9. Nbd2 a5 10. h3 Bh5 11. Nf1 Na6 12. Ng3 Bg6 13.
Nh4 $14 {Diagram [#] Jobava,B (2683)-Benidze,D (2491) Ureki 2015}) ({Carlsen
chose} 4... exd4 5. e5 Nd5 {Hou-Carlsen, Wijk an Zee 2013.}) 5. d5 Ne7 6. Nxe5
Ng6 7. Qe2 Qe7 8. Qxe4 Qxe5 9. Qxe5+ Nxe5 10. Bf4 {This particular line has
the reputation of an ultra solid weapon where White can hardly ever lose (or
win). Jobava has his own way instead of the conventional development:} (10. Be2
Bc5 11. Nd2 d6 12. Nb3 Bb6 13. a4 a6 14. a5 Ba7 15. Nd4 Bxd4 16. cxd4 Nd7 {
with slight advantage for White in Lu,S (2606)-Wang,H (2710) Xinghua 2015})
10... Bd6 11. Bg3 f5 12. Nd2 O-O 13. f4 $146 {[%csl Yf4] Diagram [#] Boom, the
novelty! White sacrifices a pawn! Not a move that the computer will suggest.} (
{All the twelve predecessors saw} 13. f3 {when after} b6 14. O-O-O Bb7 15. Nc4
Nxc4 16. Bxc4 f4 17. Bf2 Rae8 {trades are about to happen along the e file,
and a handshake.}) 13... Ng6 14. O-O-O Bxf4 (14... b6 $1 {was probably better.
The pawn on f4 has nowhere to go. After} 15. Nc4 Bxf4+ 16. Bxf4 Nxf4 17. d6 {
White has compensation for the pawn, but hardly more.}) (14... Nxf4 $2 {
is bad due to the simple} 15. Nc4 {when White regains the pawn and keeps
pressure for free.}) 15. d6 $1 {[%csl Ya8,Yc8] Diagram [#] The point behind
the sacrifice. Jobava tries to seal the bishop on c8.} cxd6 ({Another way to
defend is} 15... Bxg3 $5 16. hxg3 (16. Bc4+ Kh8 17. hxg3 cxd6 18. Nf3 Ne5 19.
Bd5 {makes sense as well.}) 16... cxd6 17. Nf3 Ne5 18. Rxd6 Rf6 19. Rd4 Nxf3
20. gxf3 ({Black can give back the pawn in case of a need-} 20. Bc4+ d5 21.
Bxd5+ Be6 {with approximate equality.}) 20... d6 {Just like the line above,
White has compensation, but hardly advantage.}) 16. Bxf4 Nxf4 17. g3 Nh5 {
The other retreat seemed more natural} (17... Ne6 18. Nc4 d5 19. Rxd5 f4 20.
Nd6 b6 {although it is not clear how will Black develop his bishop from b7.})
18. Nc4 $1 d5 $1 {A freeing attempt.} (18... b6 19. Nxd6 Rb8 20. Bc4+ Kh8 21.
Rhf1 {is horrendous, while}) (18... Nf6 19. Nxd6 Ne4 20. Bc4+ Kh8 21. Nxe4 fxe4
22. Bd5 $16 {is a solid advantage for White.}) 19. Nd6 $1 {[%csl Gd6] Diagram
[#]} ({Or else Saric will come out of the trouble} 19. Rxd5 Nf6 $1 (19... d6 $5
) 20. Rd6 b5) 19... Nf6 20. Bg2 {Jobava is not interested in the f5 pawn. The
blocked queenside is his mantra.} Ne4 21. Rxd5 Nxd6 22. Rxd6 {A very pleasant
situation for White arose. His four pieces are free in their motion and have
the fun part beating the black king and rook.} Re8 {If Black trades his last
active piece} (22... Rf6 23. Rxf6 gxf6 {his position will get critical after
either} 24. Rd1 (24. Rf1 {is not bad neither.})) 23. Rf1 g6 24. Bd5+ {Diagram
[#]} Kh8 {Or else White will win two pawns after} (24... Kg7 25. Bxb7 Bxb7 26.
Rxd7+ Kh6 27. Rxb7 $16) 25. Kd2 a5 26. Rf4 {Prepares the next maneuver and
discourages the queenside rook sortie.} Re5 (26... Ra6 27. Rxa6 bxa6 28. Ra4 {
regains the pawn for White and keeps stable advantage.}) 27. Rc4 Rb8 28. Rc7 {
Now the bishop is out of the picture for good and White is looking for the
decisive improvement.} b6 29. c4 {[%csl Gd5,Rd6][%cal Gc4d5,Rd6f6,Rf6f7,Rf7f8]
Diagram [#] To free the other rook.} Kg7 30. a4 ({There is absolutely no need
to force matters} 30. Bb7 Rxb7 31. Rxb7 Bxb7 32. Rxd7+ Kh6 33. Rxb7 Re6 {
when White is definitely better but Black has chances to survive.}) (30. Bc6 $6
Rc5) 30... Kf8 (30... Re7 $5 {might have been more stubborn.}) 31. Rf6+ Ke8 32.
Ra7 {[%csl Yb8,Yc8,Re5,Ye8] Diagram [#] Zugzwang # 1! Only the e5 rook can
move.} Re7 (32... Ke7 33. Rf7+ Kd6 34. Rxh7 $18) 33. h4 $1 {Once that the
White pieces have been activated to the maximum, the pawns march forward in
order to create weakneses.} Rg7 ({Or} 33... Re5 34. h5 gxh5 35. Rh6 Re7 36.
Rxh5) 34. Ke3 Ke7 35. Re6+ Kd8 36. Re5 h6 ({Otherwise the king may get in}
36... h5 37. Kf4 {followed by Kf4-g5.}) 37. Kd4 {[%csl Yb8,Yc8,Yd8,Rg7][%cal
Gh4h5] Diagram [#] Zugzwang #2! The white pawn cannot be stopped from breaking
the kingside pawn structure.} Rh7 (37... g5 38. h5 $1 f4 39. gxf4 gxf4 40. Rf5
$18) 38. h5 $1 {The kingside collapses and the white pieces invade the
opponent's camp.} Rg7 39. hxg6 Rxg6 40. Re3 {The last move before the
additional time made the win a bit complicated. The simplest solution was} (40.
Rxf5 $1 Rxg3 41. Rf7 {[%csl Rc8][%cal Gf7h7,Gh7h8,Ga7c7,Gc7c8] Diagram [#]
followed by Rf7-h7-h8+ and Ra7-c7xc8.}) 40... Rg7 41. Rf3 Rg6 42. Rxf5 Rxg3 43.
Rf8+ Ke7 44. Rf7+ Kd6 {Or else the game might transpose to the winning line
from above with} (44... Kd8 45. Rh7 Rh3 46. Rh8+ Ke7 47. Rc7 {trapping the
bishop.}) 45. Rf6+ Ke7 46. Rxh6 {Pawns are even, but four white pieces are
still beating two...} Rg4+ 47. Ke5 Rg5+ 48. Kf4 Rg1 49. Be4 Re1 50. b3 $1 {
Diagram [#] The final touch. The hasty} (50. Ke5 Bb7 $1 {would have ruined a
true masterpiece} 51. Rh7+ Kd8 52. Kd6 Rxe4 53. Rxd7+ Ke8 54. Raxb7 Rxb7 55.
Rxb7 Rxc4 56. Rxb6 Rxa4 $11) 50... Re2 51. Ke5 {Now White can.} Kf7 (51... Bb7
{does not help this time as in the line} 52. Rh7+ Kd8 (52... Kf8 53. Rh8+ Ke7
54. Rxb8 Rxe4+ 55. Kf5 Bc6 56. Rxb6 $18) 53. Kd6 Rxe4 54. Rxd7+ Ke8 55. Raxb7 {
the c4 pawn is defended and White wins.}) 52. Kd6 $1 Rxe4 53. Kc7 {[%csl Yb8,
Yc8] Diagram [#] A wonderful finish of a great game!} Rb7+ 54. Rxb7 Bxb7 55.
Kxb7 Re6 56. Rxe6 dxe6 57. Kxb6 e5 58. Kxa5 1-0