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1st Ing Cup - 1988

Below the 21 games from the 1st Ing Cup are given. The first round was held on 1988-08-21, the second on 1988-08-23, the semi-finals on 1988-11-20 and 22, the final on 1989-04-25, 04-28, 05-02, 09-02, 09-05.


Round 1 Round 2 Semi-finals Final
Cho Hunhyun
O Meiensgf  
Cho Hunhyun
  Kobayashi Koichisgf  
Kobayashi Koichi
O Risseisgf  
Cho Hunhyun2-0 
  Rin Kaiho1 2  
Takemiya Masaki
Jiang Zhujiusgf  
Jiang Zhujiu
  Rin Kaihosgf  
Rin Kaiho
Hashimoto Shojisgf  
Cho Hunhyun3-2 
  Nie Weiping1 2 3 4 5
Nie Weiping
Michael Redmondsgf  
Nie Weiping
  Cho Chikunsgf  
Wu Songsheng
Cho Chikunsgf  
Nie Weiping2-0 
  Fujisawa Shuko1 2  
Liu Xiaoguang
Kato Masaosgf  
Kato Masao
  Fujisawa Shukosgf  
Fujisawa Shuko
Ma Xiaochunsgf  

Rounds 1 and 2 are knockout rounds. For these rounds, the upper player has Black, the lower White. The winner is indicated in bold. The semifinals are matches over (at most) 3 games, the final over (at most) 5 games.


This tournament was held under an early version of the Ing rules. Komi was 8, Black wins a tie, and counted are stones plus inside area (like in Chinese area counting), but empty regions adjacent to m Black and n White stones are assigned in proportion m:n to B and W. That is, a fraction m/(m+n) of the region counts for Black, and a fraction n/(m+n) for White.
Thus, it is false to say that "8 points komi, B wins a tie" is equivalent to "7.5 points komi", because the result without komi might be a black win by more than 7.5 but less than 8 points.

Example 1

For example, the result of the game between Cho Hunhyun and Kobayashi Koichi was "B wins by one-and-five/sixths points". Below the final upper right hand corner, a seki. Elsewhere B had two more points.

Now a counts as 1 for W, b counts as 3/4 − 1/4 = 1/2 for B, and c counts as 2/3 − 1/3 = 1/3 for B, so that this entire seki counts as 1 − 1/2 − 1/3 = 1/6 for W, and the final result was B+1⅚.

Example 2

For example, the result of the game between Kato Masao and Fujisawa Hideyuki was "W wins by six-and-three/fifths points". Below the final middle left-hand side, a seki. Elsewhere W had seven more points.

Of the empty area of size 2, a fraction 3/5 is for B, and a fraction 2/5 is for W. That is, altogether it counts as (3/5 − 2/5)*2 = 2/5 for B. The final score is W+6⅗.