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Cho Chikun in the Oza tournament

Jan van Rongen created lists with metadata for all games of Cho Chikun until 2007 in the various tournaments (with links to the actual games when available). For Oza that list is here. The below list adds some games missing from the earlier list, and updates the list to 2016.

# date event round opponent (color) result #mv sgf
1 1969-03-05 18th Oza 1st Preliminary Ezura Yuichi (W) B+R 183 sgf
2 1969-03-12 18th Oza 1st Preliminary Takeuchi Kiyotaka (B) W+R 160 sgf
3 1969-04-02 18th Oza 1st Preliminary Kono Yukio (W) B+R 232 sgf
4 1969-04-09 18th Oza 1st Preliminary Cho Hunhyun (B) W+R 240 sgf
5 1969-08-14 18th Oza 2nd Preliminary Kanno Kiyonori (B) B+9.5 292 sgf
6 1970-03-04 19th Oza 1st Preliminary Shirae Haruhiko (W) W+R 240 sgf
7 1971-03-03 20th Oza 1st Preliminary Kimura Yoshio (B) W+R 148 sgf
8 1971-03-17 20th Oza 1st Preliminary Miyazaki Hiroshi (B) W+R 202 sgf
9 1971-04-07 20th Oza 1st Preliminary Koyama Shizuo (W) B+R 139 sgf
10 1971-06-06 20th Oza 1st Preliminary Ezura Yuichi (B) W+R 172 sgf
11 1971-08-11 20th Oza 2nd Preliminary Tanimiya Teiji (B) W+R 194 sgf
12 1971-11-04 20th Oza 2nd Preliminary Kano Yoshinori (W) W+1.5 234 sgf
13 1972-09-07 21st Oza 2nd Preliminary Honma Akio (W) B+R 161 sgf
14 1972-10-25 21st Oza 2nd Preliminary Iwamoto Kaoru (B) B+R 175 sgf
15 1973-08-22 22nd Oza 2nd Preliminary Nakamura Hidehito (W) B+R 253 sgf
16 1973-10-25 22nd Oza 2nd Preliminary Ishigure Ikuro (W) B+5.5 187 sgf
17 1973-11-21 22nd Oza 2nd Preliminary Iwamoto Kaoru (W) B+9.5 284 sgf
18 1973-12-19 22nd Oza 3rd Preliminary Kojima Takaho (B) W+R 240 sgf
19 1974-02-14 22nd Oza 3rd Preliminary Iwata Tatsuaki (B) B+R 171 sgf
20 1974-08-08 23rd Oza 2nd Preliminary Haruyama Isamu (B) B+R 157 sgf
21 1975-08-06 24th Oza 2nd Preliminary Suzuki Masaharu (B) W+R 122 sgf
22 1975-09-04 24th Oza 2nd Preliminary Miyashita Shuyo (B) W+R 168 sgf
23 1975-09-18 24th Oza 2nd Preliminary Shinohara Masami (B) W+15.5 273 sgf
24 1975-12-11 24th Oza 3rd Preliminary Hiroe Katsuhiko (W) B+R 113 sgf
25 1976-05-27 24th Oza Round 1 Fujisawa Hosai (B) W+4.5 230 sgf
26 1976-08-19 24th Oza Round 2 Takemiya Masaki (B) W+R 184 sgf
27 1976-10-07 24th Oza Round 3 Rin Kaiho (W) B+R 135 sgf
28 1976-11-04 24th Oza Challengers' Final Kato Masao (W) B+R 211 sgf
29 1976-11-18 24th Oza Title Game 1 Otake Hideo (W) B+R 215 sgf
30 1976-11-25 24th Oza Title Game 2 Otake Hideo (B) B+R 191 sgf
31 1976-12-09 24th Oza Title Game 3 Otake Hideo (W) B+4.5 248 sgf
32 1977-11-09 25th Oza Title Game 1 Kudo Norio (W) W+1.5 239 sgf
33 1977-11-16 25th Oza Title Game 2 Kudo Norio (B) B+4.5 259 sgf
34 1978-06-29 26th Oza Round 1 Takemiya Masaki (B) B+R 213 sgf
35 1978-12-14 27th Oza 3rd Preliminary Ishii Kunio (W) B+R 209 sgf
36 1979-01-18 27th Oza 3rd Preliminary Otake Hideo (B) B+R 211 sgf
37 1979-08-30 28th Oza 2nd Preliminary Hashimoto Yujiro (W) B+R 161 sgf
38 1979-10-11 28th Oza 2nd Preliminary Magari Reiki (W) B+R 199 sgf
39 1979-11-08 28th Oza 2nd Preliminary Takemiya Masaki (W) W+0.5 197 sgf
40 1980-05-29 29th Oza 2nd Preliminary Kada Katsuji (W) B+R 195 sgf
41 1980-06-19 29th Oza 2nd Preliminary Sugiuchi Masao (B) W+R 154 sgf
42 1981-01-22 29th Oza 2nd Preliminary Yamabe Toshiro (B) W+R 148 sgf
43 1981-05-11 29th Oza 3rd Preliminary O Rissei (B) B+2.5 293 sgf
44 1982-07-05 30th Oza Round 1 Ishida Akira (W) W+2.5 248 sgf
45 1983-05-05 31st Oza Round 1 Ishida Yoshio (W) B+6.5 247 sgf
46 1983-06-16 31st Oza Round 2 Ishida Akira (W) B+2.5 255 sgf
47 1983-09-12 31st Oza Round 3 Rin Kaiho (B) B+R 209 sgf
48 1984-05-03 32nd Oza Round 1 Ohira Shuzo (W) B+R 123 sgf
49 1984-05-31 32nd Oza Round 2 Sanno Hirotaka (B) W+4.5 255 sgf
50 1984-07-26 32nd Oza Round 3 Takemiya Masaki (B) W+R 150 sgf
51 1984-08-30 32nd Oza Challengers' Final Yamashiro Hiroshi (B) B+6.5 257 sgf
52 1985-03-07 33rd Oza Round 1 Takagi Shoichi (B) W+R 192 sgf
53 1985-07-18 33rd Oza Round 2 Takemiya Masaki (B) B+3.5 220 sgf
54 1986-05-29 34th Oza Round 1 O Rissei (B) W+3.5 281 sgf
55 1986-07-10 34th Oza Round 2 Rin Kaiho (W) W+R 158 sgf
56 1987-03-05 35th Oza 3rd Preliminary Hane Yasumasa (B) W+R 170 sgf
57 1987-05-21 35th Oza Round 1 Yamashiro Hiroshi (B) W+1.5 239 sgf
58 1987-06-11 35th Oza Round 2 Takemiya Masaki (W) B+R 117 sgf
59 1987-07-23 35th Oza Round 3 O Rissei (W) B+R 169 sgf
60 1987-08-27 35th Oza Challengers' Final Rin Kaiho (W) B+R 181 sgf
61 1987-09-10 35th Oza Title Game 1 Kato Masao (B) B+R 153 sgf
62 1987-09-25 35th Oza Title Game 2 Kato Masao (W) W+R 134 sgf
63 1987-10-15 35th Oza Title Game 3 Kato Masao (B) W+R 140 sgf
64 1987-11-04 35th Oza Title Game 4 Kato Masao (W) W+R 166 sgf
65 1988-03-31 36th Oza Round 1 Kobayashi Satoru (B) B+R 101 sgf
66 1989-07-13 37th Oza Round 1 Otake Hideo (B) W+R 136 sgf
67 1989-08-17 37th Oza Round 2 Honda Kunihisa (B) W+R 94 sgf
68 1989-09-14 37th Oza Round 3 Hane Yasumasa (B) B+R 295 sgf
69 1990-05-03 38th Oza Round 1 Ohira Shuzo (B) B+R 171 sgf
70 1991-05-02 39th Oza Round 1 Tono Hiroaki (B) W+13.5 257 sgf
71 1991-08-01 39th Oza Round 2 Hashimoto Shoji (W) W+1.5 236 sgf
72 1992-05-21 40th Oza Round 1 Otake Hideo (W) B+3.5 287 sgf
73 1992-08-13 40th Oza Round 2 Hashimoto Shoji (B) B+R 201 sgf
74 1993-03-18 41st Oza Round 1 Ishida Yoshio (W) B+R 137 sgf
75 1993-07-08 41st Oza Round 2 O Rissei (W) B+R 237 sgf
76 1993-08-26 41st Oza Round 3 Kato Masao (B) B+1.5 246 sgf
77 1994-04-21 42nd Oza Round 1 Hashimoto Shoji (W) B+2.5 221 sgf
78 1994-06-23 42nd Oza Round 2 Takemiya Masaki (W) B+1.5 256 sgf
79 1994-09-01 42nd Oza Round 3 Rin Kaiho (W) B+10.5 223 sgf
80 1994-09-15 42nd Oza Challengers' Final Yoda Norimoto (W) B+R 195 sgf
81 1994-10-21 42nd Oza Title Game 1 Kato Masao (W) B+R 145 sgf
82 1994-11-02 42nd Oza Title Game 2 Kato Masao (B) B+R 199 sgf
83 1994-11-17 42nd Oza Title Game 3 Kato Masao (W) W+R 216 sgf
84 1994-11-24 42nd Oza Title Game 4 Kato Masao (B) W+4.5 244 sgf
85 1994-12-08 42nd Oza Title Game 5 Kato Masao (W) B+R 197 sgf
86 1995-10-19 43rd Oza Title Game 1 O Rissei (W) W+0.5 257 sgf
87 1995-11-01 43rd Oza Title Game 2 O Rissei (B) B+R 141 sgf
88 1995-11-16 43rd Oza Title Game 3 O Rissei (W) W+R 118 sgf
89 1996-06-14 44th Oza Round 1 Otake Hideo (W) W+R 160 sgf
90 1997-03-27 45th Oza Round 1 O Meien (B) B+R 75 sgf
91 1998-04-09 46th Oza Round 1 Michael Redmond (W) W+R 164 sgf
92 1999-04-15 47th Oza Round 1 Awaji Shuzo (B) W+R 118 sgf
93 1999-05-20 47th Oza Round 2 So Yokoku (W) B+R 175 sgf
94 1999-07-29 47th Oza Round 3 Rin Kaiho (W) B+4.5 219 sgf
95 1999-08-26 47th Oza Challengers' Final Kato Masao (W) B+R 147 sgf
96 1999-10-25 47th Oza Title Game 1 O Rissei (W) B+4.5 281 sgf
97 1999-11-18 47th Oza Title Game 2 O Rissei (B) B+R 161 sgf
98 1999-12-02 47th Oza Title Game 3 O Rissei (W) W+R 186 sgf
99 1999-12-09 47th Oza Title Game 4 O Rissei (B) B+R 123 sgf
100 2000-03-30 48th Oza Round 1 Kono Takashi (W) B+R 195 sgf
101 2000-06-08 48th Oza Round 2 Hikosaka Naoto (B) W+0.5 244 sgf
102 2000-06-29 48th Oza Round 3 Kato Masao (W) B+4.5 272 sgf
103 2000-08-24 48th Oza Challengers' Final Yoda Norimoto (W) B+R 187 sgf
104 2000-10-23 48th Oza Title Game 1 O Rissei (B) W+R 174 sgf
105 2000-11-22 48th Oza Title Game 2 O Rissei (W) W+0.5 281 sgf
106 2000-11-30 48th Oza Title Game 3 O Rissei (B) B+6.5 259 sgf
107 2000-12-14 48th Oza Title Game 4 O Rissei (W) W+R 208 sgf
108 2001-04-26 49th Oza Round 1 Yamashiro Hiroshi (W) B+R 153 sgf
109 2001-05-24 49th Oza Round 2 Komatsu Hideki (W) B+R 235 sgf
110 2001-07-05 49th Oza Round 3 Yoda Norimoto (W) B+R 145 sgf
111 2001-08-23 49th Oza Challengers' Final Kato Atsushi (B) W+5.5 208 sgf
112 2001-10-19 49th Oza Title Game 1 O Rissei (W) B+R 159 sgf
113 2001-11-01 49th Oza Title Game 2 O Rissei (B) W+7.5 284 sgf
114 2001-11-14 49th Oza Title Game 3 O Rissei (W) B+R 147 sgf
115 2002-10-10 50th Oza Title Game 1 O Meien (B) W+R 228 sgf
116 2002-10-31 50th Oza Title Game 2 O Meien (W) W+T 144 sgf
117 2002-11-21 50th Oza Title Game 3 O Meien (B) B+0.5 276 sgf
118 2002-11-28 50th Oza Title Game 4 O Meien (W) B+R 181 sgf
119 2002-12-12 50th Oza Title Game 5 O Meien (W) W+R 174 sgf
120 2003-04-24 51st Oza Round 1 Kudo Norio (W) B+3.5 213 sgf
121 2003-06-26 51st Oza Round 2 Yamashiro Hiroshi (B) B+2.5 294 sgf
122 2003-12-25 52nd Oza Last Preliminary, Final Kato Atsushi (B) B+1.5
123 2004-10-21 53rd Oza Preliminary A1 Mitani Tetsuya (?)
124 2004-11-04 53rd Oza Preliminary A2 Tahara Yasufumi (?)
125 2005-02-17 53rd Oza Last Preliminary, Final Ogaki Yusaku (B) W+R 162 sgf
126 2005-05-19 53rd Oza Round 1 Kataoka Satoshi (W) W+4.5 200 sgf
127 2005-12-01 54th Oza Last Preliminary, Round 1 Kobayashi Satoru (B) B+8.5 209 sgf
128 2007-05-10 55th Oza Round 1 So Yokoku (W) W+R 224 sgf
129 2008-04-24 56th Oza Round 1 Yuki Satoshi (W) W+R 76 sgf
130 2009-05-14 57th Oza Round 1 Yamada Kimio (B) B+0.5 292 sgf
131 2010-02-11 58th Oza Last Preliminary So Yokoku (W) B+R 249 sgf
132 2010-03-11 58th Oza Last Preliminary, Final Kiyonari Tetsuya (W) W+R 206 sgf
133 2010-11-11 59th Oza Preliminary A Nakaonoda Tomomi (W) B+R 167 sgf
134 2010-12-23 59th Oza Preliminary A Rin Kanketsu (W) B+R 189 sgf
135 2011-02-03 59th Oza Last Preliminary Nakamura Shinya (B) W+R 160 sgf
136 2011-02-24 59th Oza Last Preliminary, Final Sakai Takeshi (W) B+R 127 sgf
137 2011-05-19 59th Oza Round 1 Yoda Norimoto (B) W+R 190 sgf
138 2011-05-30 59th Oza Round 2 Hane Naoki (W) W+R 178 sgf
139 2012-01-19 60th Oza Last Preliminary Imamura Yoshiaki (W) B+4.5 169 sgf
140 2012-02-23 60th Oza Last Preliminary, Final Anzai Nobuaki (B) W+R 164 sgf
141 2012-05-10 60th Oza Round 1 Yuki Satoshi (W) W+R 206 sgf
142 2013-05-09 61st Oza Last Preliminary, Final Seto Taiki (B) B+8.5 221 sgf
143 2013-12-19 62nd Oza Preliminary A Ryu Shikun (W) B+R 215 sgf
144 2014-01-16 62nd Oza Preliminary A Rin Kanketsu (B) B+R 113 sgf
145 2015-01-15 63rd Oza Preliminary A Sato Masaharu (B) W+R 214 sgf
146 2015-02-05 63rd Oza Preliminary A Rin Shien (B) W+6.5 260 sgf
147 2015-03-12 63rd Oza Last Preliminary, Round 1 Mizokami Tomochika (W) W+1.5 253 sgf
148 2015-10-29 64th Oza Preliminary A Ishikura Noboru (B) W+4.5 264 sgf
149 2015-11-12 64th Oza Preliminary A Morita Michihiro (B) W+R 122 sgf
150 2016-03-03 64th Oza Last Preliminary Goto Shungo (B) W+2.5 251 sgf
151 2016-05-05 64th Oza Last Preliminary, Final Kono Rin (B) B+5.5 334 sgf
152 2016-10-20 65th Oza Preliminary A Yamashiro Hiroshi (W) W+R 188 sgf
153 2017-08-10 66th Oza Preliminary B, Final Sakai Maki (B) W+3.5 313 sgf
154 2017-12-21 66th Oza Preliminary A Cho Sonjin (B) B+R 145 sgf
155 2018-11-08 67th Oza Preliminary A Akiyama Jiro (W) W+R 152 sgf
156 2019-07-04 68th Oza Preliminary B, Final Suzuki Yoshimichi (W) B+10.5 319 sgf
157 2019-10-17 68th Oza Preliminary A Yo Kaei (B) W+8.5 295 sgf
158 2020-01-09 68th Oza Last Preliminary, Final Hirata Tomoya (W) W+R 92 sgf
159 2021-01-07 69th Oza Preliminary A Seki Kotaro (B) W+3.5 395 sgf
160 2021-02-01 69th Oza Preliminary A Mochizuki Kenichi (B) B+R 177 sgf
161 2022-01-13 70th Oza Preliminary A Tsuneishi Takashi (W) B+R 255 sgf
162 2022-12-15 71st Oza Preliminary Nakamura Shinya (W) B+0.5 280 sgf
163 2023-01-19 71st Oza Preliminary A Yamada Takuji (B) W+R 150 sgf
164 2023-03-09 71st Oza Last preliminary Takao Shinji (W) B+R 135 sgf
165 2023-04-13 71st Oza Last preliminary, Final Oba Junya (B) B+R 113 sgf
166 2023-11-09 72nd Oza Preliminary A Hirata Tomoya (B) W+R 186 sgf
167 2024-03-21 72nd Oza Preliminary A final Kobayashi Satoru (W) W+7.5 234 sgf
168 2024-11-21 73rd Oza Preliminary A Kato Atsushi (W) W+R 182 sgf