TwixT
World Championship 1999: the deciding game
by
Klaus Hußmanns and David
Bush
This
year there were 13 competitors from 8 countries. Because we had
only 4 hours to play the tournament, we played using the Swiss system
with five rounds, with only twenty minutes per player in each game.
The
first round, I had to play Jan Stastna from Czechoslovakia,
then Stephane Nicolet from France, in the third round Miroslav
Voracek (Czech Republic). Hartmut Thordsen, my compatriot,
lost in the third round against Gert Schnider, Austria.
I had
to play Schnider in the next round, and this was already a real
final: the winner of this match was champion and could have lost
the last match! Gert is an ongoing Go professional, and one of the
best European Go players.
Here
is our game (Gert proposed the first move):
(The
(S) means Gert played T7 as White, and Klaus swapped sides.)
|
White
|
Black
|
|
Klaus
Hußmanns
|
Gert
Schnider
|
|
1.T7(S)
|
2.P14
|
|
3.J14
|
4.J9
|
|
5.L10
|
|

Figure
16: Black to move
In
general, it is not advisable to get drawn into an unclear local
battle when there is so much board space that has not been used
yet.
Instead
of 6.K12, perhaps 6.J18 would have been better. For
example, 6.J18 7.L15- 8.L19- 9.N16- 10.Q19 and Black
has the advantage. If 11.O19 then 12.N18- threatens
O16- - or O18- - . Another possibility is 7.R16
8.P10, Or maybe 7.L17 8.L14 9.F14 (diagram below).
Both
these branches are unclear, but that’s probably better for Black
than what he gets with 6.K12.

Figure
16a: variation Black to move
Returning
to the game:

Figure
17: White to move
7.F11
looks better. If
8.I11- - (Not 8.F9 9.H10- ) 9.D10- (Not 9.H10-
because of 10.G6) 10.E7 (or 10.E6 11.G9- and
now: 12.J6 13.H6; or 12.J4 13.J6 is effectively the
same as the 10.E7 line; or 12.H7 13.H6 14.I5- 15.F7- -
16.G4- 17.E5- ; or 12.I7- 13.F6 14.H5- 15.D5- 16.G7- - 17.C7-
) 11.E8- 12.F5- 13.G7- 14.I6 15.J6 16.J4- 17.I8- - 18.L5-
19.K8- - , and now if 20. H13- 21.F14, or if 20.F14
21.J13! 22.M13- (shifting the battle to the right. If 22.I13-
23.I15- ; if 22.L14- 23.L15- 24.M16- 25.H12- - 26.K17- 27.G17)
23.H12- - 24.O8 (If 24.R6 25.N6 26.O4 27.P10 and now:
28.Q5- 29.U5- ; or 28.T5- 29.O3) 25.P10 26.Q5 27.V6
28.P9 (or 28.P11 29.Q12- 30.N10- - 31.O13- ) 29.N9-
- 30.R8- 31.S10 32.S11 33.U11- 34.Q10- - 35.T13 (diagram below).
Of
course, Black had lots of other ways to go in this variation, so
it's by no means certain that 7.F11 is better than 7.M13.

Figure
17a: variation Black to move
Returning
to the game:
|
-
|
8.N13-
|
|
9.L11-
|
10.L14-
-
|
|
11.J12-
|
|

Figure
18: Black to move
12.J18
looks better:
If
13.F17 14.G15 15.G14 16.H13- .
If 13.H17 14.H19- .
If 13.L15- 14.L19- 15.N16- (15.N18 doesn’t work because
of 16.O20 17.O19 18.M19- 19.M18- 20.L17- - ; if 15.T17
16.Q19) 16.Q19 17.O19 18.N18- (diagram below). Black probably
has the advantage.

Figure
18a: variation White to move
Another
variation after 12.J18 is 13.K16- 14.L19- 15.T18 (or 15.M17-
16.O18) 16.O16- 17.T14 18.S11! 19.S12- 20.R9- 21.Q11- 22.P10- 23.O10-
24.N9- (diagram). Black may have an advantage; at any rate,
this is certainly better than what he gets after 12.H15.

Figure
18b: variation White to move
Back
to the game:
13.H13-
doesn't work.
|
-
|
14.J16-
|
|
15.L15-
|
16.L17-
|
|
17.N16-
|
18.N18-
|
|
19.P17-
|
20.P19-
|
|
21.T18!
|
|

Figure
19: Black to move
This
is what was wrong with 12.H15.
22.T20
fails against 23.R19- 24.Q19 25.P20- 26.R17- 27.R16- with
threats of either 29.Q18- - or 29.S15.
Also,
after 21.T18 Black might have played immediately 22.Q17-
, in which case I would have played 23.S16- 24.R15- - 25.R14-
, with maybe 26.R10 27.T11 28.U11 29.R12- , or 26.R12
27.R10 28.Q10- 29.S12- 30.S9- 31.T9- (diagram).

Figure
19a: variation Black to move
|
23.U20-
|
24.S19-
|
|
25.R19-
|
26.Q17-
|
(diagram)
If 26.R18- 27.S16- 28.Q16- - 29.S12.

Figure
20: White to move
27.R15
was my most difficult move; I did not know whether R15 or
27.S16- 28.R15- - 29.R14- (30.R10 31.S12- 32.T9 33.Q11- )
is better.
|
|
28.R13-
|
|
29.S13-
|
30.S16-
|
|
31.T16-
|
32.T12-
|
|
33.Q15-
|
|

Figure
21: Black to move
Trying
to draw; blocking the double link from Q15 to T16...
...but
to no avail. White can connect via O14 or O18.
|
|
36.L8-
|
|
37.N9-
|
38.N7-
|
|
39.P8-
|
40.P6-
|
|
41.R8-
|
42.T3
|
|
43.T5
|
44.U5-
|
|
45.S3-
|
46.R7-
|
|
47.V6-
-
|
48.Q10
|
|
49.P9-
|
|
and
Gert resigned.

Figure
22: Final position Black resigns
White
cannot be stopped from building an unbroken chain.
For
example, if 50.O9- 51.O7-P8/N9+N9/O7/P9 52.M11- 53.J11- 54.J13-
55.H13-I14/J12+J12/H13/J14 56.I11- (to block the I12
threat) 57.M8- !

Figure
22a: variation Black to move
White
will connect the two large groups via K9 or N10. In
the bottom half of the board, White can play either O14-P17/Q15+R15/P16/O14/N16
or O18-Q15/P17/N16+R15/P16/O18/N16. The pegs at T18
and T16 are connected via either R17 or V17.
And at the very bottom, White has either Q21- or V22-
.
It
is strange, that I didn't have to play my strongest opponent (Hartmut)!
But Harmut and I were quite lucky about it!!! And if I would have
to play with him in the last round, it would have been without influence
for me. In the end, Gert Schnider won the Silver medal, and Hartmut
Thordsen won the Bronze.
The
tournament was organized very well, and the atmosphere was nice!
I emphatically
welcome all questions, both general and specific, as well as any
comments you may care to send me! My email is: twixt@cstone.net
-
David
J. Bush