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Dunne, P. (1848)    —    Geiling, C. (2160)
17. VfB Schach Leipzig-Open  (1)   Leipzig
2010.03.02     1-0     B53c


1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.c3 d3

Simple acceptance of the gambit is best, and quite safe.
5.Bxd3 e6 6.O-O Be7 7.c4
Maroczy Bind in what should be very favourable circumstances ofr White — lead in development.
7...Nc6 8.Nc3 a6 9.Be3 Nf6 10.h3 O-O 11.Qe2?
The Q should go to d2, with the plan of Be2, Nd4, f4, Bf3.
( 11.Qd2 b6 12.Be2 Nd7 13.Nd4 Bb7 14.f4 )
11...b6 12.Rfd1 Nd7 13.Rac1 Bb7 14.Bf4
Not bad as such, but not really in keeping with the needs of the position. The f-pawn belongs here; this B was good enough where it was.
14...Qb8 15.Bb1?
Of course the B doesn't belong here in this position. It needs to be on the h1-a8 diagonal, or at least on the f1-a6 one.
( 15.Qd2 Rd8 16.Be2 Nde5 17.Nd4 )
15...Rd8 16.Rd2 Nde5 17.Be3 Nd7 18.Rcd1 Qc7 19.Rc1 Nce5 20.Nxe5 dxe5 21. Rdd1 Rac8 -/+ 22.Qf3
White must strive for some activity, at whatever cost, or he will be overwhelmed.
22...f5
Perhaps too forcing?
23.a3 Nf6 24.Bg5 Rd4 25.Be3 Nxe4?
The decisive error.
26.Bxd4 exd4 27.Nxe4 Rf8 28.Qe2 fxe4 29.Bxe4 Bxe4 30.Qxe4 e5 31.Re1 Bd6 32.b4 Kh8 33.c5 bxc5 34.bxc5 Bxc5 35.Qxe5 Qxe5 36.Rxe5 Bxa3 37.Ra1 Bb2 38.Rxa6 h6 39.Rd5 Bc3 40.Rad6 Be1 41. f3 Bd2?
He ought not to allow White to exchange Rs.
42.Rd8 Be3+ 43.Kf1 Kg8 44.Rxf8+ Kxf8 +-
It's a clear, simple win for White from here on.
45.Ke2 Ke7 46.Kd3 Ke6 47.Rxd4 Bxd4 48. Kxd4 Kf5 49.Ke3 h5 50.g3 g6 51.f4 Kf6 52.g4 hxg4 53.hxg4 Ke6 54.Ke4 Kd6 55.Kd4 Ke6 56.Kc5 Ke7 57.Kd5 Kd7 58.Ke5 Ke7 59.g5 Kf7 60.Kd6 1-0

Ziese, G. (2041)    —    Dunne, P. (1848)
17. VfB Schach Leipzig-Open  (2)   Leipzig
2010.03.03     1-0     D02j


1.d4 d5 2.Nf3 c5 3.e3 Nc6 4.Be2 Nf6 5.O-O e6 6.c4 Bd6 7.Nc3 O-O 8.a3 b6 9.b3 Bb7 10.Bb2 Rc8 11.Qc2 Qe7 12.Rad1 Rfd8 13.dxc5 bxc5 14.Bd3 d4?!

Played in anticipation of the Bishop sacrifice on h2, otherwise too commital.
15.exd4 Nxd4 16.Nxd4 cxd4 17.Nb5 Bxh2+?
This simply doesn't work here. You'd think I'd never read Vukovic...
( 17...Bb8 )
( 17...e5 )
18.Kxh2 Ng4+
( 18...Bxg2?! I don't suppose this could work...?! )
19.Kg3 Rc5
( 19...Qg5 20.f4 )
( 19...Ne3 20.fxe3 Qg5+ 21.Kh2 Qh4+ 22.Kg1 Rd5 23.cxd5 Rxc2 24.Bxc2 Qg3 —+ And after any half-sensible move from White, the attack is over and Black is almost out of pieces! )
20.Bc1 Ne3 21.fxe3 Rg5+ 22.Kh2 Rxg2+ 23.Qxg2 Bxg2 24.Kxg2 Qg5+ 25.Kf2 Qh4+ 26.Ke2 Qh2+ 27.Rf2 Qh5+ 28.Ke1 Qh1+ 29.Bf1 d3 30.Nd4 e5 31.Nf5 e4 32.Bb2 g6 33.Ne7+ Kf8 34.Nd5 f5 35.Be5 Qh6 36.Kd2 Kf7 37.Rh2 Qf8 38.Rxh7+ Ke6 39. Re7+ Qxe7 40.Nxe7 Kxe7 41.Bg2 1-0

Dunne, P. (1848)    —    Onhor, B. (1985)
17. VfB Schach Leipzig-Open  (3)   Leipzig
2010.03.03     1-0     B21z


1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.c3 dxc3 5.Nxc3 Nf6 6.Bc4 e6 7.O-O Be7 8.Qe2 Nc6 9.Rd1 Ng4 10.Bf4 e5?!

Gives White a present of the huge hole on d5, and I don't see that Black has any counterplay to compensate for this.
11.Bg3 Bd7?
( 11...h5 12.h4 )
12.Nb5 Qb8
( 12...Be6 13.h3 Nf6 14.Nxe5 Nxe5 15.Bxe5 )
13.h3 Nf6 14.Bh4 a6 15.Bxf6 gxf6 16.Nc3 b5
( 16...Be6 17.Nd5 Bxd5 18.Bxd5 Nb4 19.Nh4 Nxd5 20.Rxd5 Kd7 21.Nf5 +/- )
17.Bb3 O-O?
Fatal. Black's King would be safer in the centre.
18.Rac1 Qe8 19.Nd5 Bd8 20.Qe3 Be6 21.Qh6 Bxd5 22.Bxd5 Rc8 23.Nh4 1-0

Weigert, W. (2079)    —    Dunne, P. (1848)
17. VfB Schach Leipzig-Open  (4)   Leipzig
2010.03.04     1-0     D34b


1.c4 e6 2.g3 d5 3.Bg2 Nf6 4.Nf3 c5 5.O-O Nc6 6.cxd5 exd5 7.d4 Be6 8. Nc3 Be7 9.Bf4 O-O 10.dxc5 Bxc5 11.Rc1 d4 12.Nb5 Bb6 13.Nd6 Bc8 14.Ng5 Ne8 15.Qd3 g6 16.Nxc8 Rxc8 17.Bh3 Ra8 18.Ne4 Nb4 19.Qb3 Nd5 20.Bh6 Nef6 21. Nxf6+

( 21.Bg5 Kg7 )
21...Nxf6 22.Bxf8 Kxf8 23.Qf3 Kg7 24.Rc4
( 24.Qxb7 )
24...Qe7 25.Qd3 Re8 26.Rc2 Nd5 27.a3 Qg5 28.Qb5 Re5 29.Qb3 Nf4 30.Bg2 Nxe2+ 31.Kh1 Qf5 32.Rd2 Ba5 33.Rd3 Rb5 34.Qc2 Rxb2 35.Qxb2 Qxd3 36.Qxb7 Bb6 37.Qe4 Qxe4 38.Bxe4 Nc3 39.Bd3 Bc5 40.Ra1 Bb6 41.Kg1 Bc5 42.Kf1 Nd5 43.Ke2 Nc3+ 44.Kd2 f5 45.f3 Nd5 46.a4 a5 47.Bb5 Bb4+ 48.Kd3 Bc3 49.Rc1 Kf6 50.Bd7 Ke7 51.Bb5 Kd6 52.Rb1 = Kc5?! 53.Be8 Nb4+ 54.Ke2 d3+ 55.Ke3 Nc2+??
( 55...Bd4+ 56.Kf4 Nd5+ 57.Kg5 Be3+ 58.f4 Nc3 59.Rf1 d2 60.Kh6 d1=Q 61.Rxd1 Nxd1 62.Kxh7 Bg1 63.Kxg6 Bxh2 64.Kxf5 Bxg3 65.Bb5 Nc3 66.Be8 Kb4 )
56.Kxd3 +- Na3 57.Rc1 1-0

Borchert, J. (2001)    —    Dunne, P. (1848)
17. VfB Schach Leipzig-Open  (5)   Leipzig
2010.03.04     1-0     C80e


1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.Re1 Nc5 7.Bxc6 dxc6 8.Nxe5 Be7 9.d4 Ne6 10.Be3 O-O 11.c3 Qd5?

This is not playable here, since White has played Be3 instead of an inferior move such as c3 or Nbd2.
( 11...Bd6 )
( 11...f6 )
12.Nd2 b5 13.b3 c5?
Black must admit his mistake and retreat the Queen.
( 13...Qd8 )
14.c4 Qd6 15.Ne4 Qb6 16.dxc5 Nxc5??
I thought I'd calculated it all out, but I didn't calculate far enough.
17.Nd3 Rd8 18.Nexc5 Bxc5 19.Bxc5 Qg6 20.Nf4 Qg5 21.Be7 +-
This is the move I missed earlier. Obvious at this range, of course.
21...Rxd1 22. Raxd1 1-0

Dunne, P. (1808)    —    Caprita, T. (1417)
17. VfB Schach Leipzig-Open  (6)   Leipzig
2010.03.05     1-0     C00g


1.e4 e6 2.Qe2 Nc6 3.Nf3 Nb4 4.d3 d5 5.g3 dxe4 6.dxe4 Ne7 7.Bg2 Ng6 8.O-O Qf6? 9.Nc3

( 9.c3 Nc6 10.Bg5 +- )
9...h6 10.Re1 e5 11.a3 Nc6 12.Nd5 Qd8 13.Rd1 Bd6 14.Be3 O-O 15.c4 Be6 16. c5 Be7 17.h3 Qc8 18.Kh2 Rd8 19.b4 Bf8 20.Rac1 Nce7 21.Nc3 Rxd1 22.Rxd1 c6 23.h4 Bg4 24.Qb2 Qc7 25.Rd3 Rb8 26.Qd2 f6 27.Ng1 Re8 28.Bh3 Bxh3 29.Nxh3 Kh8?
Loses a piece
( 29...Kh7 30.Rd7 Qc8 31.h5 Nh8 32.f4 Nf7 33.g4 exf4 34. Bxf4 Ne5 35.Bxe5 fxe5 36.g5 Ng8 37.gxh6 Nxh6 38.Ng5+ Kg8 39.Ne2 Be7 40.Ne6 Bf6 41.Ng3 )
( 29...f5 30.Rd7 )
30.h5 Nh4 31.gxh4 Ng8 32.Rd7 Qc8 33.f4 Be7 34.Nf2 Rd8 35.Rxd8 Bxd8 36.f5 Qc7 37.Ng4 Qe7 38.Nd1 Qe8 39.Kg3 Be7 40.Nb2
( 40.Nxh6 Nxh6 41.Bxh6 gxh6 42.Qxh6+ Kg8 43.Qg6+ Qxg6+ 44. hxg6 +— The quickest way to win. )
40...Qxh5 41.Nc4 g5 42.Qh2 Qf7 43.Nd6 Qb3 44.hxg5 fxg5 45.Qh5 Kg7 46.Qg6+ Kf8 47.Qe6 Qxe6 48.fxe6 b6 49.Nxe5 Nf6 50.Ng6+ 1-0

Podolnyy, J. (1795)    —    Dunne, P. (1808)
17. VfB Schach Leipzig-Open  (7)   Leipzig
2010.03.06     1/2-1/2     C50j


1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Nc3 Bc5

( 4...Nxe4 )
5.a3?
Waste of time.
5...d6 6.h3?
Waste of time, and weakens the future home of the King.
6...Be6 7.Qe2 O-O 8.d3 Nd4
Perhaps a little over-forcing. I miseed 10.Bxe6.
9.Nxd4
( 9.Qd1 c6 10.Bg5 h6 11.Bh4 g5 12.Bg3 )
9...exd4 10.Bxe6
( 10.Na4 Bxc4 11.dxc4 ( 11.Nxc5 dxc5 12.dxc4 Nxe4 -/+ ) 11...Nxe4 -/+ )
( 10.Nd1 Bxc4 11.dxc4 Nxe4 -/+ )
10...fxe6 11.Nd1 e5 12.O-O d5 13.exd5 Qxd5 14.c4 Qe6 15.b4 Be7 16.Bb2 Rad8 17.Re1 e4 18.Qd2 c5 19.dxe4 Nh5 20.bxc5 Nf4 21.f3 Bxc5 22.Nf2 d3
( 22...Qg6 23.Nd3 Nxd3 24.Qxd3 )
23.Kh2 Bxf2?!
Black has whipped up a nice little attack for himself. Here is where he starts to go wrong.
( 23...Qg6 24.Rg1 ( 24.g3 Ne2 25.Nxd3 ( 25.g4 Rxf3 ) 25...Qxg3+ 26.Kh1 Qxh3# ) 24...Ne2 25.Rgf1 Qg3+ 26.Kh1 Bd6 )
24.Qxf2 d2 25.Reb1 Nd3?
Black forks and wins! Or does he...?
( 25...Qxc4 26.Qg3 Qc7 )
26.Qxd2 +/-
Of course!
26...Qxc4 27.Qc3 Nxb2 28.Qxb2 Qc7+ 29.Kg1 Qg3 30.Qf2
It's probably better for White to keep Queens on in this position.
30...Qxf2+ 31.Kxf2 Rd2+
Black manages to get some activity, but it ought not to be enough.
32.Kg3 h5 33.h4 Rf6 34.Rxb7 Rg6+ 35.Kf4 Rdxg2 36.Rxa7 Rh2 37.Rf1 Rxh4+ 38.Ke3 Rh2 39.e5 h4 40.Ke4 h3 41.Ra8+ Kh7 42.Kf5 Re2 43.Rh1 h2 44. Rh8+ Kxh8 45.Kxg6 Rxe5 46.Rxh2+ Kg8 47.f4 Re6+ 48.Kg5 Ra6 =
The dust has cleared. How is White to win this? It's not easy, if it's even possible. Black seems to have himself a fortress. The R stays on the a-file, and the K tacks to and fro between g8 and f7. How can White make progress? If he trades off the K-side pawns, the ending with R+P v R is a draw because it's a Rooks pawn *unless* White can cut the Black king off far from the pawn. However, he can't even achieve this, since the pawn trade will take off Rooks also, and Black's king can reach c7/c8 with a book draw.

Anyway, Black offered a draw here, which was declined.

49.Rh3 Kf7 50.Rb3 Kg8 51.f5 Kf7 52.Rf3 Kg8 53.Kf4
( 53.f6 Rxf6 54.Rxf6 gxf6+ 55.Kxf6 Kf8 56.Ke6 Ke8 57.Kd6 Kd8 58.Kc6 Kc8 59.Kb6 Kb8 60.a4 Ka8 61.a5 Kb8 62.a6 Ka8 63.a7 = )
53...Kf7 54.Ke5 Ra5+ 55.Kd6 Kf6 56.Kc6 Rxf5 57.Rxf5+ Kxf5 =
Black offered a draw here, of course. It was declined.
58.a4 g5 59.a5 g4 60.a6 g3 61.a7 g2 62.a8=Q g1=Q 63.Qf8+ Ke5 64.Qd6+ Kf5 65.Qd5+ Kf4 66.Qc4+ Ke5 67.Qb5+ Kf4 68.Qb8+ Kf5 69.Qf8+ Ke5 70.Qe7+ Kf5
And White finally offered the draw.
1/2-1/2

Dunne, P. (1808)    —    Didt, H. (1647)
17. VfB Schach Leipzig-Open  (8)   Leipzig
2010.03.06     1-0     B15p


1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.f3 e5

This has got to be best here, I think. Probably this opens the position too much for Black to be able to keep the gambit pawn, though, so it's decision time: play this and strive for an equal position, or hang on the gambit pawn and keeep the position closed with e.g. ef Nxf3 e6.
5.Be3 Bb4
( 5...exd4 6.Bxd4 c5? Mephisto Europa A likes to play this! But it gives White too much tempo. ( 6...exf3 7.Nxf3 Nf6 8.Bc4 Be7 9.O-O O-O I don't suppose White has enough for the pawn here, "objectively", but it seems playable. ) 7.Be5 Qxd1+ 8.Rxd1 e3?! Certainly there's no time for this. 9.Nd5 +/- Perhaps not very likely, but still a good illustration of the trouble Black can get himself into if he's not careful. )
6.Bc4
( 6.fxe4 Nf6 )
6...Nf6 7.Qe2 O-O 8.O-O-O?!
( 8.dxe5 Nd5 )
8...exf3 9.Nxf3 e4?!
"Forcing" White's Knight to move to a better square can't be good.
10.Ne5 Bxc3 11.bxc3 Qa5 12.Kb2 Nbd7 13.Rdf1 Nb6 14.Bb3 Na4+?
The decisive error.
( 14...Nbd5 15.Qd2 ( 15.Bd2 e3 16.Be1 Black must be better here. ) ( 15.c4?? Qc3+ ) 15...Ng4 16.Nxg4 Bxg4 -/+ )
15.Bxa4 Qxa4 16.Rxf6 gxf6 17.Qf2
Quite possibly, Black is already lost here.
17...fxe5?
( 17...f5? 18.Qg3+ Kh8 19.Bh6 Rg8 20.Nxf7# )
( 17...h5 18.Qxf6 Kh7 19.Qh6+ Kg8 20.Ng6 fxg6 21.Qxg6+ Kh8 22.Bh6 Rg8 23.Qf6+ Kh7 24.Be3 Rxg2 ~ )
18.Qf6 exd4 19.Bh6 dxc3+ 20.Kc1 Qa3+ 21.Kd1 Qd6+ 22.Qxd6 Bg4+ 23.Ke1 Rad8 24.Qf6 Rd1+ 25.Kf2 Rd2+ 26.Kg3 1-0

Beyer, T. (1957)    —    Dunne, P. (1808)
17. VfB Schach Leipzig-Open  (9)   Leipzig
2010.03.07     1-0     A13t


1.Nf3 d5 2.c4 e6 3.g3 c5 4.Bg2 Nf6 5.O-O Nc6 6.d3 Be7 7.b3 O-O 8.Bb2 b6 9.Nbd2 Bb7 10.Ne1 Qd7 11.Nc2 Rad8 12.Qe1 Rfe8 13.Rd1 Qc7 14.a3 e5?!

( 14...d4 )
15.cxd5 Nxd5 16.Nc4 Nd4 17.N2e3 g6 18.Ng4 f6 19.e4 h5 20.exd5 hxg4 21.Bxd4 exd4 22.Qe4 f5 23.Qe6+ Kg7 24.Rde1 b5 25.Ne5 Qd6 26.Qf7+ Kh6 27.Nxg4+ fxg4 28.Re6 Qxe6 29.dxe6 Bxg2 30.Kxg2 c4 31.bxc4 bxc4 32.dxc4 Bc5 33.Qf4+ Kh7 34.Qxg4 d3 35.h4 Rd4 36.f4 Re4 37.Qd1 R4xe6 38.Qxd3 Rd6 39.Qf3 Re3 40.Qb7+ Kh6 41.Rf3 Re7
( 41...Rd2+ 42.Kh3 Re1 43.Kg4 )
42.Qa8 Kg7 43.f5 Re2+ 44.Kh3 Rf6 45.fxg6 Rxg6 46.Qd5 Bg1 47.Qf7+ Kh6 48.g4 Rh2+ 49.Kg3 Rxg4+ 50.Kxg4 Rxh4+ 51.Kxh4 Bf2+ 52.Rxf2 1-0


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