Games of Cho Chikun in 1990
| Nr. | Date & Opponent | Event & Result | Mvs |
|---|---|---|---|
| 1 | 1990-01-11 O Rissei | 12th Kakusei, Semi-final (W, B+R) | 187 |
| 2 | 1990-01-25 Rin Kaiho | 15th Meijin League (B, W+R) | 172 |
| 3 | 1990-02-01 Yamashiro Hiroshi | 15th Gosei, Round 2 (W, W+R) | 126 |
| 4 | 1990-02-17 Rin Kaiho | 9th NEC Cup, Semi-final (W, B+10.5) | 253 |
| 5 | 1990-02-22 Yoda Norimoto | 15th Meijin League (B, B+3.5) | 226 |
| 6 | 1990-03-01 Fujisawa Hideyuki | 15th Meijin League (W, W+R) | 174 |
| 7 | 1990-03-08 Takemiya Masaki | 28th Judan Final, Game 1 (B, W+R) | 174 |
| 8 | 1990-03-15 Yamashiro Hiroshi | 16th Tengen, Round 1 (B, W+R) | 192 |
| 9 | 1990-03-22 Hane Yasumasa | 15th Gosei, Round 3 (W, B+R) | 141 |
| 10 | 1990-03-24 Yoda Norimoto | 23rd Hayago Championship, Round 1 (B, B+6.5) | 261 |
| 11 | 1990-03-28 Takemiya Masaki | 28th Judan Final, Game 2 (W, B+R) | 147 |
| 12 | 1990-04-04 Takemiya Masaki | 28th Judan Final, Game 3 (B, B+5.5) | 214 |
| 13 | 1990-04-07 Yu Ch'ang-hyeok | 3rd Fujitsu Cup, Round 1 (W, W+R) | 118 |
| 14 | 1990-04-09 Jimmy Cha | 3rd Fujitsu Cup, Round 2 (B, W+4.5) | 250 |
| 15 | 1990-04-12 Awaji Shuzo | 15th Meijin League (W, B+R) | 129 |
| 16 | 1990-04-19 Takemiya Masaki | 28th Judan Final, Game 4 (W, W+R) | 102 |
| 17 | 1990-04-26 Takemiya Masaki | 28th Judan Final, Game 5 (B, W+0.5) | 290 |
| 18 | 1990-05-03 Ohira Shuzo | 38th Oza, Round 1 (W, B+R) | 171 |
| 19 | 1990-05-07 Takemiya Masaki | 15th Meijin League (W, W+R) | 128 |
| 20 | 1990-05-11 Kobayashi Koichi | 45th Honinbo Final, Game 1 (W, W+R) | 160 |
| 21 | 1990-05-24 Kobayashi Koichi | 29th Judan, Winners' Section, Round 1 (W, W+2.5) | 242 |
| 22 | 1990-05-28 Kobayashi Koichi | 45th Honinbo Final, Game 2 (B, W+R) | 176 |
| 23 | 1990-06-07 Kobayashi Koichi | 45th Honinbo Final, Game 3 (W, B+0.5) | 210 |
| 24 | 1990-06-19 Kobayashi Koichi | 45th Honinbo Final, Game 4 (B, W+R) | 98 |
| 25 | 1990-06-23 Sanno Hirotaka | 3rd IBM Hayago Open, Round 1 (W, W+R) | 174 |
| 26 | 1990-06-23 Yoda Norimoto | 3rd IBM Hayago Open, Round 2 (W, W+R) | Incompl. |
| 27 | 1990-06-28 Sakata Eio | 29th Judan, Winners' Section, Round 2 (B, B+R) | 127 |
| 28 | 1990-07-05 Honda Kunihisa | 15th Meijin League (B, B+2.5) | 286 |
| 29 | 1990-07-09 Kobayashi Koichi | 45th Honinbo Final, Game 5 (W, W+7.5) | 269 |
| 30 | 1990-07-16 Ishida Yoshio | 3rd IBM Hayago Open, Round 3 (B, W+R) | 164 |
| 31 | 1990-07-18 Kobayashi Koichi | 45th Honinbo Final, Game 6 (B, B+6.5) | 221 |
| 32 | 1990-07-25 Kobayashi Koichi | 45th Honinbo Final, Game 7 (W, W+3.5) | 230 |
| 33 | 1990-07-28 Fujisawa Hideyuki | 23rd Hayago Championship, Round 2 (B, B+8.5) | 292 |
| 34 | 1990-07-30 Hasegawa Sunao | 38th NHK Cup, Round 1 (W, W+R) | 180 |
| 35 | 1990-08-09 Otake Hideo | 15th Meijin League (B, W+R) | 188 |
| 36 | 1990-08-23 Rin Kaiho | 29th Judan, Winners' Section Semi-final (W, W+0.5) | 240 |
| 37 | 1990-09-01 Abe Yoshiteru | 3rd Kirin Cup, Round 1, Board 1 (B, B+R) | 177 |
| 38 | 1990-09-01 Rin Kaiho | 3rd Kirin Cup, Round 2, Board 1 (B, B+R) | 141 |
| 39 | 1990-09-09 Kato Masao | 23rd Hayago Championship, Semi-final (B, B+R) | 231 |
| 40 | 1990-09-10 Takemiya Masaki | 13th Kakusei, Round 2 (W, B+1.5) | 178 |
| 41 | 1990-10-07 Rin Kaiho | 23rd Hayago Championship Final (W, W+1.5) | 217 |
| 42 | 1990-10-11 Rin Kaiho | 15th Kisei, Strongest Players' Quarter-final (W, W+4.5) | 273 |
| 43 | 1990-10-18 Kato Masao | 15th Kisei, Strongest Players' Semi-final (W, B+3.5) | 246 |
| 44 | 1990-10-25 Nakamura Hidehito | 16th Gosei, Round 1 (B, W+4.5) | 259 |
| 45 | 1990-11-08 Yoda Norimoto | 29th Judan, Winners' Section Final (B, B+3.5) | 225 |
| 46 | 1990-12-03 Ma Xiaochun | 3rd Tong Yang Securities Cup, Round 2 (W, W+3.5) | 203 |
| 47 | 1990-12-08 Otake Hideo | 10th NEC Cup, Round 1 (B, W+R) | 212 |
| 48 | 1990-12-13 Mimura Tomoyasu | 16th Meijin League (B, B+R) | 113 |