Author: Sune Larsson
Date: 00:21:58 12/23/01
[D]2bq1rk1/1p2ppbp/r1np2p1/1N6/N1P1n3/1B2B3/PP2QPPP/R4RK1 b - - 0 13
This is a position from the fourth game between Gambit Tiger and IM Berg 2500.
Here GT presented a theoretical novelty which, as far as I know, never before
has been tried. GT played 13.-Be6!?, inviting to an exchange sacrifice. Emanuel
called with 14.Bb6, but black had enough compensation with a pawn for the
exchange, the bishop pair and good control over the black squares. After some
complications the game levelled out to a draw. The whole game further down.
PIII 800, 192 Mb hash, 2 hours per player for the whole game. Tigerbook used.
A short summary of the 4 games played so far:
In these games Gambit Tiger has not been able to put any serious pressure
on IM Berg. GT has in fact been very far from winning any of the games.
All games have been open with lots of piece play and tactics.
Game 1: IM Berg had a winning endgame but slipped slightly and let Tiger
escape with a draw.
Game 2: GT misplayed the ending with opposite colored bishops a bit and lost.
Emanuel showed great creativity in sacking 3 pawns and taking his
chances.
Game 3: Emanuel attacked but GT countered good with 23.b5!. E had to
go for the brakes and a solid draw.
Game 4: The game below. GT correctly sacked an exchanged in the opening,
got good compensation - and after some tactics the game ended
in a draw.
Result: Gambit Tiger 2.0 - IM Emanuel Berg 2500 1.5 - 2.5
After Christmas Emanuel will play in Hastings and then Bermudas.
We plan to resume these games ( maybe vs some new program) when he returns.
[Event "Emanuel 120'"]
[Site "KIL"]
[Date "2001.12.17"]
[Round "4"]
[White "Berg, Emanuel"]
[Black "Gambit Tiger 2.0"]
[Result "1/2-1/2"]
[ECO "B35"]
[WhiteElo "2500"]
[PlyCount "89"]
[EventDate "2001.12.11"]
{192MB, PowerBig.ctg. PIII 800
} 1. e4 {. . Alterman,B 0} 1... c5 {-0.01/1 0}
2. Nf3 {6} 2... Nc6 {-0.01/1 0} 3. d4 {11} 3... cxd4 {-0.01/1 0} 4. Nxd4 {13}
4... g6 {-0.01/1 0} 5. Nc3 {55} 5... Bg7 {-0.01/1 0} 6. Be3 {10} 6... Nf6 {
-0.01/1 0} 7. Bc4 {56} 7... O-O {-0.01/1 0} 8. Bb3 {42} 8... a5 {-0.01/1 0} 9.
O-O {(This is what we around here call "the Nataf variation. Previously people
played 9.a4 to prevent black from doing the same. GM Nataf has shown that
white can get pressure and active piece play though.) 30} 9... a4 {-0.01/1 0}
10. Nxa4 {16} 10... Nxe4 {-0.01/1 0} 11. Nb5 {26} 11... Ra6 {0.60/13 118} 12.
c4 {207} 12... d6 {0.04/13 99} 13. Qe2 {163} 13... Be6 $146 {(This is a
theoretical
novelty by Tiger. Previously has been played 13.-Nf6. 13.-f5 is not so
good because white can still play 14.Bb6 (c5+ is waiting...). With the move 13.
-Be6, Tiger invites to an exchange sacrifice.) 0.14/14 197} 14. Bb6 {(Knowing t
hat black gets a pawn for the exchange + the bishop pair and good control over
the black squares. Still Emanuel wanted to "call" the position and see what
would happen. 14.Rad1 or even 14.Rfd1 would have kept the pressure.) 458} 14...
Rxb6 {-0.30/13 21} 15. Nxb6 {20} 15... Qxb6 {-0.48/16 101} 16. Qxe4 {12} 16...
Bxb2 {-0.42/15 200} 17. Rad1 {44} 17... Be5 {-0.44/14 272} 18. Kh1 {(White has
nothing on the queenside, so the chances are on the opposite wing. He also has
to keep an eye on the c-pawn.) 428} 18... Rd8 {-0.42/12 161} 19. h3 {504} 19...
Qc5 {-0.60/13 118} 20. f4 {362} 20... Bf6 {-0.80/14 111} 21. Nc7 {(If white is
to push the pawns on the kingside, he must find a way to get rid of black's
white squared bishop.) 497} 21... Bf5 {-0.36/17 352} 22. Qe1 {75} 22... e6 {
-0.38/14 118} 23. g4 {229} 23... Nd4 {-0.80/15 173} 24. gxf5 {136} 24... Qxc7 {
-0.76/14 37} 25. fxe6 {239} 25... Qc6+ {-0.76/14 111} 26. Kh2 {139} 26... Nf3+
{-0.78/15 206} 27. Rxf3 {320} 27... Qxf3 {-0.80/14 0} 28. exf7+ {28} 28... Kxf7
{-0.80/12 24} 29. Qg3 {(With equal play.) 206} 29... Qe2+ {-0.46/13 100} 30.
Qg2 {54} 30... Qe3 {-0.40/13 190} 31. Qxb7+ {393} 31... Kg8 {-0.46/15 785} 32.
Qd5+ {149} 32... Kh8 {-0.44/16 0} 33. Qd2 {94} 33... Qf3 {-0.50/15 10} 34. Re1
{661} 34... g5 {-0.42/17 0} 35. Qe3 {239} 35... Qxe3 {-0.32/17 662} 36. Rxe3 {
12} 36... gxf4 {0.52/16 98} 37. Re6 {31} 37... Be5 {0.16/16 98} 38. Ba4 {326}
38... f3+ {-0.15/14 79} 39. Kg1 {20} 39... Bd4+ {0.05/15 60} 40. Kf1 {37} 40...
f2 {0.04/15 38} 41. Re8+ {35} 41... Rxe8 {-0.09/19 36} 42. Bxe8 {9} 42... Kg7 {
-0.10/19 142} 43. a4 {3} 43... Bb6 {-0.14/18 188} 44. a5 {4} 44... Bxa5 {
-0.18/17 73} 45. Kxf2 {2} 1/2-1/2
Sune
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