Games Between Two Players
Kato Masao (4 win; 2 loss) vs. Shimamura Toshihiro
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [1982-01-21] 7th Japanese Gosei, round 2
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| Kato Masao 9p | Shimamura Toshihiro 9p | B+R |  |
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| [1981-01-15] 6th Japanese Meijin, league
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| Kato Masao 9p | Shimamura Toshihiro 9p | B+R | |
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| [1977-10-13] 3rd Japanese Tengen, round 2
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| Shimamura Toshihiro 9p | Kato Masao 8p | B+6.5 | |
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| [1976-01-15] 1st Japanese Gosei, league
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| Kato Masao 8p | Shimamura Toshihiro 9p | B+R | |
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| [1972-03-01] 27th Japanese Honinbo, league
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| Kato Masao 7p | Shimamura Toshihiro 9p | B+R | |
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| [1968-12-11] 24th Japanese Honinbo, league
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| Kato Masao 5p | Shimamura Toshihiro 9p | W+R | |
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