Report Obayashi Cup 1994

From:        jansteen@cwi.nl
Newsgroups:  rec.games.go
Subject:     Report and results of the Obayashi Cup 1994
Date:        Tue Sep  6 21:54:54 1994

Results and report of the 3rd Obayashi Cup (played on the 3 & 4 September 1994).

The Obayashi Cup is a two day tournament. On the first day a four round Macmahon tournament is played with prizes for players with 2, 3 and 4 points. The top 16 of the Macmahon tournament qualify for a playoff tournament. This 4 round knockout tournament is played on the next day (so Sunday).

This year we had an ex equo for the 16th place. Normally, a lightning game would have decided which player would qualify for the playoff but since one of the players involved (Koopman) had already left the tournament place (thus being overly pessimistic) the organisation had no choice but to automatically seed the other player (Vanderstappen).

The knockout featured the following players:

     1. Gerald Westhoff		5D	The Netherlands
     2. Zhang Shutai		6D	China
     3. Shen Guangji		6D	Germany
     4. Guo Juan		6D	The Netherlands
     5. Franz-J. Dickhut	6D	Germany
     6. Zhao Pei		5D	China
     7. Christoph Gerlach	5D	Germany
     8. Frank Janssen		6D	The Netherlands
     9. Robert Rehm		5D	The Netherlands
    10. Keiko Watanabe		5D	Japan
    11. Vladimir Danek		5D	Czeck Republic
    12. Rudi Verhagen		4D	The Netherlands
    13. Manfred Wimmer		6D	Austria
    14. David Schoffel		5D	Germany
    15. Thomas Koranda		4D	Czeck Republic
    16. Filip Vanderstappen	4D	The Netherlands

Notice that three female Go players qualified for the playoff this year. The players are seeded according to the place they finished in the Macmahon tournament. This expects the following semifinal and final:

	Gerald Westhoff - Shen Guangji
	Zhang Shutai    - Guo Juan

So again the tournament seemed to converge to an all Chinese final (like the first two editions of the tournament). However, things didn't proceed as usual this year...

In the first round there were no real surprising results, so for the second round we had the following players lines up:

	Westhoff - Janssen
	Dickhut  - Guo
	Shen     - Zhao
	Gerlach  - Zhang

Zhang Shutai quickly finished his game with Gerlach. This was the only "easy" game this round. All other games were fierce battles. Guo Juan misread the position and lost. Shen eventually won from Zhao, and after having lead, Westhoff (who was sick during the tournament) saw his time run out against Janssen. This left the following players lined up for the semi-finals:

	Janssen  - Dickhut
	Shen     - Zhang

According to Obayashi tournament rules, the top half game of the semi-final moves to the Japanese style room, enabling the audience to watch the game by the internal video system of the European Go Centre. Both the semifinal and final game is analysed by the attending Japanese professional, Mr. Saijo Masataka, 8 dan. The Janssen-Dickhut game, eagerly observed by the audience and smoothly but relentlessly analysed by the professional, proceeds typically: white leads, black leads, white leads, ... In the end Franz-Josef Dickhut, not quite trusting his (small) lead decides to start an action in the center which turns out to be mochi-komi (loss without compensation) thus actually leading to his defeat.

The other game, between Shen and Zhang is all Zhang from the start. But then, during the late middle game Zhang slips up in (again) a center fight, while missing a few chances to still settling the shape in his favor. Eventually Zhang's flag drops while being behind by the smallest margins on the board (.5 point).

So, the deciding game for the Obayashi Cup didn't become an all-Chinese affair after all:

	Frank Janssen - Shen Guangji

Frank Janssen builds a moyo to counter Shen's "territory greedy" opening strategy. However, Shen immediately invades, getting an unreasonably good result because unfortunately Frank slips up in this fight. The game thus soon gets a flavor of an uphill battle for the latter. Of course he tries to complicate matters wherever possible, but overdoing things forces him to resign the game after some 3/4 hour of play. Reluctantly the players enter the commentary hall afraid for a possible disappointed audience. But they are received with a warm applause and Saijo sensei quickly goes over the game with them to enlighten both the players and the audience on some points.

This concluded this years Obayashi Cup.

Below, I have included both the result of the Macmahon tournament and the knockout table of the playoff.

The Macmahon table lists the following information:

	PLC  : place of player in tournament
	NAT  : nationality
	GR   : grade
	MM   : MacMahon-score
	PT   : points
	SOS  : Sum of Opponents' Scores
	SODOS: Sum of Defeated Opponents' Scores

PLC  PLAYER               NAT  GR     1    2    3    4    MM  PT   SOS SODOS
  1  Westhoff, Gerald     NL   5D    22+  28+   5+   6+   22   4    82    82
  2  Zhang, Shutai        Chi  6D    33+   7+  11+  30+   22   4    81    81
  3  Shen, Guangji        D    6D    35+  20+  14+   4+   22   4    80    80
  4  Guo, Juan            NL   6D    25+  21+   9+   3-   21   3    83    61
  5  Dickhut, F           D    6D    16+  17+   1-  24+   21   3    82    60
     Zhao, Pei            Chi  5D    36+  23+   8+   1-   21   3    82    60
     Gerlach, Christoph   D    5D    13+   2-  33+  16+   21   3    82    60
  8  Janssen, Frank       NL   6D    12+  32+   6-  21+   21   3    81    60
     Rehm, Robert         NL   5D    34+  10+   4-  19+   21   3    81    60
     Watanabe, Keiko      Jap  5D    27+   9-  18+  15+   21   3    81    60
 11  Danek, Vladimir      CZ   5D    44+  19+   2-  23+   21   3    81    59
 12  Verhagen, Rudi       NL   4D     8-  37+  17+  45+   21   3    79    58
 13  Wimmer, Manfred      A    6D     7-  52+  32+  14+   21   3    78    57
 14  Schoffel, David      D    5D    38+  15+   3-  13-   20   2    82    39
 15  Koranda, Thomas      CZ   4D    18+  14-  22+  10-   20   2    81    40
 16  Koopman, Rob         NL   4D     5-  42+  29+   7-   20   2    81    39
     Vanderstappen, F     NL   4D    26+   5-  12-  46+   20   2    81    39
 18  Nakashima, Katsuya   Jap  6D    15-  27+  10-  43+   20   2    80    39
 19  Boon, Mark           NL   5D    52+  11-  26+   9-   20   2    80    38
     Groenen, Geert       NL   5D    39+   3-  24-  34+   20   2    80    38
     Schuster, Malte      D    5D    42+   4-  40+   8-   20   2    80    38
     Dach, Zbynek         CZ   4D     1-  36+  15-  39+   20   2    80    38
     Warnaar, Walther     NL   4D    40+   6-  41+  11-   20   2    80    38
 24  Puyt, Erik           NL   5D    32-  39+  20+   5-   20   2    79    39
 25  Kaper, Erik          NL   4D     4-  41+  31-  36+   20   2    79    38
 26  Shinkai, M.          Jap  6D    17-  34+  19-  37+   20   2    78    38
 27  Nijhuis, Caspar      NL   3D    10-  18-  55+  33+   20   2    78    37
 28  Schreurs, Paul       NL   2D    56+   1-  53+  32+   20   3    77    55
 29  Nakajima, M.         Jap  2D    80+  40+  16-  35+   20   3    75    55
 30  Lu, Jinqiang         Chi  5D         38+  35+   2-   20   2    60    38
 31  Vermaseren, Jos      NL   4D              25+        20   2    20    20
 32  Vos, Dave de         NL   3D    24+   8-  13-  28-   19   1    82    20
 33  Dzaebel, Frank       D    4D     2-  43+   7-  27-   19   1    82    19
 34  Ambagts, Zjev        NL   3D     9-  26-  47+  20-   19   1    80    19
 35  Zandveld, Peter      NL   4D     3-  59+  30-  29-   19   1    80    18
 36  Knottnerus, Dries    NL   3D     6-  22-  59+  25-   19   1    79    18
 37  Hollmann, Henk       NL   2D    53+  12-  51+  26-   19   2    78    37
 38  Spruit, Nico         NL   3D    14-  30-  44+  48-   19   1    78    19
 39  Gelderen, V van      NL   3D    20-  24-  56+  22-   19   1    78    18
     Pomstra, W           NL   3D    23-  29-  21-  58+   19   1    78    18
 41  Ito, T.              Jap  2D    47+  25-  23-  55+   19   2    77    37
 42  Diepen, Niek van     NL   3D    21-  16-  46-  56+   19   1    77    18
 43  Altena, Robert       NL   2D    45+  33-  61+  18-   19   2    76    37
 44  Schryver, Wim de     NL   2D    11-  57+  38-  62+   19   2    76    36
     Hofman, Wim          NL   2D    43-  58+  52+  12-   19   2    76    36
 46  Oosten, Arend van    NL   1D    65+  54+  42+  17-   19   3    75    55
 47  Choi, Robin          Kor  2D    41-  63+  34-  52+   19   2    74    36
 48  Bogaerts, Jan        B    1D    54-  70+  63+  38+   19   3    72    54
 49  Dullemeijer, Peter   NL   1D    57-  69+  60+  53+   19   3    71    53
     Schouten, John       NL   1D    55-  79+  57+  59+   19   3    71    53
 51  Goedhart, Rene       NL   2D         78+  37-  54+   19   2    54    35
 52  Tanaka, Shinichi     Jap  3D    19-  13-  45-  47-   18   0    79     0
 53  Fecke, Andreas       D    2D    37-  60+  28-  49-   18   1    76    18
 54  Geerlings, Bert      NL   1D    48+  46-  64+  51-   18   2    75    37
 55  Maljaars, Wim        NL   1D    50+  67+  27-  41-   18   2    75    36
 56  Vieveen, Jos         NL   2D    28-  76+  39-  42-   18   1    75    17
 57  Sevenants, Pierre    B    1D    49+  44-  50-  68+   18   2    74    36
     Roermund, M van      NL   1D    64+  45-  66+  40-   18   2    74    36
 59  Schiethart, Jaap     NL   2D    67+  35-  36-  50-   18   1    74    17
 60  Opdorp, G van        NL   1D    62+  53-  49-  73+   18   2    72    35
 61  Hijkoop, Wijnand     NL   1K    72+  65+  43-  70+   18   3    71    52
 62  Bol, Jan             NL   1D    60-  68+  67+  44-   18   2    71    34
 63  Hageman, Ger         NL   1D    81+  47-  48-  71+   18   2    71    33
 64  Vrolijk, Vincent     NL   1D    58-  74+  54-  75+   18   2    70    34
 65  Ees, Theo van        NL   1D    46-  61-  82+  78+   18   2    70    33
 66  Jonk, Arnold         NL   1K    82+  81+  58-  67+   18   3    67    49
 67  Meiklejohn, Ian      GB   2D    59-  55-  62-  66-   17   0    72     0
 68  Cornelissen, Hans    NL   1K    73+  62-  79+  57-   17   2    70    34
 69  Altena, Karel        NL   1K    71+  49-  78-  83+   17   2    69    33
 70  Hoekstra, Hans       NL   1K    84+  48-  81+  61-   17   2    69    32
 71  Diederen, Marianne   NL   1K    69-  85+  72+  63-   17   2    68    33
     Verhagen, Ronald     NL   1K    61-  77+  71-  87+   17   2    68    33
     Kloos, Ernst         NL   1K    68-  83+  74+  60-   17   2    68    33
     Pleit, Joost         NL   1K    75+  64-  73-  86+   17   2    68    33
     Ward, Njio           NL   1K    74-  84+  76+  64-   17   2    68    33
 76  Chu, Meng-Ing        NL   1K   101+  56-  75-  88+   17   2    66    31
 77  Segers, Frank        NL   2K   102+  72-  91+  81+   17   3    63    46
 78  Wesenhagen, Jasper   NL   1D         51-  69+  65-   17   1    54    17
 79  Quest, Regina        D    1D         50-  68-  82+   17   1    52    16
 80  Koster, Jos          NL   1D    29-                  17   1    20     0
 81  Puttkammer Klinger   D    1D    63-  66-  70-  77-   16   0    70     0
 82  Broekhuijsen, Hans   NL   1K    66-  89+  65-  79-   16   1    69    16
 83  Bruijning, Chaim     NL   2K    87+  73-  90+  69-   16   2    66    32
 84  Omori, Y.            Jap  1K    70-  75-  86-  92+   16   1    65    15
 85  Coultre, Marc le     NL   2K    86+  71-  87-  94+   16   2    64    31
     Belmans, Guy         B    2K    85- 100+  84+  74-   16   2    64    31
 87  Schmit, Paul         L    2K    83- 103+  85+  72-   16   2    63    30
 88  Wolters, Rob         NL   3K    95+ 102+  89+  76-   16   3    62    45
 89  Aramaki, M.          Jap  2K    92+  82-  88- 100+   16   2    62    30
 90  Une, K.              Jap  3K    94+  96+  83-  93+   16   3    61    45
 91  Bruksch, Thomas      D    3K    93+  92+  77- 106+   16   3    61    44
 92  Soute, Hans          NL   2K    89-  91-  98+  84-   15   1    63    15
 93  Mulder, Mark         NL   3K    91- 104+  97+  90-   15   2    61    29
 94  Bink, Fons           NL   3K    90- 109+ 102+  85-   15   2    60    28
 95  Briessinck, Margo    B    3K    88-  97- 109+ 107+   15   2    59    28
     Heesch, Teun van     NL   3K   103+  90- 100- 105+   15   2    59    28
 97  Visser, Peter        NL   4K   113+  95+  93- 102+   15   3    57    42
 98  Hennebert, J         B    4K   108+ 105+  92- 114+   15   3    56    41
 99  Poggenklas, Kai      D    5K   121+ 111+ 104+ 103+   15   4    53    53
100  Zwanenburg, Jan      NL   2K         86-  96+  89-   15   1    47    15
101  Demeijer, Tom        NL   2K    76-                  15   1    17     0
102  Podbiol, Krzysztof   PL   2K    77-  88-  94-  97-   14   0    63     0
103  Flesseman, Tim       NL   2K    96-  87- 106-  99-   14   0    60     0
104  Peters, Taco         NL   4K   107+  93-  99- 116+   14   2    57    27
     Engbers, Erik        NL   4K   111+  98- 110+  96-   14   2    57    27
106  Chauveau, Frederic   F    5K   112+ 119+ 103+  91-   14   3    56    40
107  Galen, Paul van      NL   4K   104- 120+ 108+  95-   14   2    55    26
     King, Daan           NL   4K    98- 115+ 107- 112+   14   2    55    26
109  Florissen, Swim      NL   4K   117+  94-  95- 124+   14   2    55    25
110  Wichers Schreur, R   NL   4K        113+ 105- 111+   14   2    40    26
111  Finke, Martin        NL   4K   105-  99- 122+ 110-   13   1    55    12
112  Mechtenberg, Dirk    D    5K   106- 125+ 118+ 108-   13   2    53    25
113  Silva, Stephan da    NL   4K    97- 110- 116- 128+   13   1    53    11
114  Galen, Liesbeth van  NL   5K   120- 123+ 115+  98-   13   2    52    25
     Dalla Giavanna, G    B    5K   118+ 108- 114- 122+   13   2    52    25
116  Maison, Benoit       B    6K   126+ 117+ 113+ 104-   13   3    51    37
117  Bijpost, Ellard Jon  NL   5K   109- 116- 126+ 120+   13   2    50    23
118  Kollum, Roel van     NL   5K   115- 127+ 112- 121+   13   2    49    23
119  Hin, Jacob           NL   5K   132+ 106- 120+        13   2    36    22
120  Schmalz, Dierk       D    5K   114+ 107- 119- 117-   12   1    53    13
121  Bruijning, Jeroen    NL   5K    99- 122- 123+ 118-   12   1    52    12
122  Hustler, Ratchel     GB   6K   125+ 121+ 111- 115-   12   2    50    24
123  Ullrich, Thomas      D    6K   124+ 114- 121- 127+   12   2    48    23
124  Dommelen, Wim van    NL   6K   123- 133+ 125+ 109-   12   2    48    22
125  Boer, Wim            NL   5K   122- 112- 124- 126+   12   1    48    11
126  Stuiver, Bert        NL   6K   116- 132+ 117- 125-   11   1    48    10
127  Willems, Rick        NL   7K   128+ 118- 133+ 123-   11   2    46    21
128  Pleit, Karen         NL   7K   127- 134+ 132+ 113-   11   2    43    19
129  Korthout, Anneke     NL   7K   134- 130+ 131- 133+   11   2    41    21
130  Sepers, Jan          NL   7K   133- 129- 134+ 137+   11   2    38    17
131  Otten, John          NL   9K   136+ 138+ 129+ 132+   11   4    37    37
132  Lambot, Denis        B    6K   119- 126- 128- 131-   10   0    46     0
133  Carrol, Charlie      CND  7K   130+ 124- 127- 129-   10   1    45    11
134  Verburg, Henk        NL   8K   129+ 128- 130- 135-    9   1    42    11
135  Schulz, Andreas      D    11K  139+ 140+ 136+ 134+    9   4    32    32
136  Droog, Ben           NL   9K   131- 137- 135- 140+    8   1    35     7
137  Kuiters, Peter       NL   11K  142+ 136+ 141+ 130-    8   3    32    21
138  Smits, Martin        NL   10K  140+ 131- 139- 142+    8   2    32    13
139  Haagsma, Teake       NL   11K  135- 143+ 138+ 141+    8   3    30    21
140  Maler, Robert        NL   10K  138- 135- 143+ 136-    7   1    31     6
141  Entrop, Ingeborg     NL   10K            137- 139-    7   1    16     0
142  Winkel, Remko te     NL   12K  137- 144+ 146+ 138-    6   2    23     7
143  Gorel, Ronald        NL   12K  144+ 139- 140- 147+    6   2    22     7
144  Doncker, Ingrid de   B    13K  143- 142- 149+ 148-    4   1    17     2
145  Hollmann, Tommie     NL   15K  152+ 146- 151+ 149+    4   3     8     5
146  Tittelbach, Marlies  D    17K  148+ 145+ 142- 152+    3   3    14     8
147  Cloosterman, B       NL   18K  153+ 149+ 152+ 143-    3   3    10     4
148  Olof, Johan          NL   20K  146- 154+ 150+ 144+    3   3     9     6
149  Guo, Wang-Zi         NL   15K  150+ 147- 144- 145-    2   1    13     2
150  Houtkoop, Hilda      NL   19K  149- 153+ 148- 154+    2   2     6     1
     Wit, Tobias de       NL   20K  154+ 152- 145- 153+    2   2     6     1
152  Hollmann, Kirsten    NL   20K  145- 151+ 147- 146-    1   1    12     2
153  Wit, Guus de         NL   25K  147- 150- 154+ 151-    1   1     7     0
154  Hollmann, Line       NL   30K  151- 148- 153- 150-    0   0     8     0
              Knockout playoff tournament
              ---------------------------

 1. Gerald Westhoff
    |------------------> Westhoff
16. Filip Vanderstappen  |   
                         |---------> Janssen
 8. Frank Janssen        |           |
    |------------------> Janssen     |
 9. Robert Rehm          -------     |
                                     |-------> Janssen
 5. Franz-J. Dickhut                 |         |
    |------------------> Dickhut     |         |
12. Rudi Verhagen        |           |         |
                         |---------> Dickhut   |
13. Manfred Wimmer       |                     |
    |------------------> Guo                   |
 4. Guo Juan                                   |
                                               |------> Shen
 3. Shen Guangji                               |        ----
    |------------------> Shen                  |
14. David Schoffel       |                     |
                         |---------> Shen      |
11. Vladimir Danek       |           |         |
    |------------------> Zhao        |         |
 6. Zhao Pei                         |         |
                                     |-------> Shen
 7. Christoph Gerlach                |
    |------------------> Gerlach     |
10. Keiko Watanabe       |           |
                         |---------> Zhang
15. Thomas Koranda       |
    |------------------> Zhang
 2. Zhang Shutai              

Page creation: Jan van der Steen