Games of Cho Chikun against Hikosaka Naoto
| Nr. | Date | Event & Result | Mvs |
|---|---|---|---|
| 1 | 1991-10-24 | 30th Judan, Losers' Section, Round 3 (W, W+R) | 60 |
| 2 | 1991-10/12 | 39th NHK Cup, Round 2 (?, +) | |
| 3 | 1992-08-10 | 31st Judan, Winners' Section, Round 1 (W, W+R) | 124 |
| 4 | 1995-07-06 | 34th Judan, Winners' Section. Round 1 (W, W+R) | 160 |
| 5 | 1998-02-12 | 36th Judan, Challengers' Final (W, B+R) | 223 |
| 6 | 2000-02-10 | 55th Honinbo League (B, B+R) | 103 |
| 7 | 2000-06-08 | 48th Oza, Round 2 (W, W+0.5) | 244 |
| 8 | 2001-11-17 | 21st NEC Cup, Round 2 (W, W+R) | 176 |
| 9 | 2002-07-04 | 27th Meijin League, Round 7 (W, W+13.5) | 313 |
| 10 | 2002-08-22 | 41st Judan League, Losers' Section (B, B+R) | 177 |
| 11 | 2004-10-14 | 43rd Judan League, Winners' Section Semi-final (W, W+2.5) | 240 |