Games Between Two Players
Kato Masao (3 win; 0 loss) vs. Haruyama Isamu
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [1999-04-05] 8th Japanese Ryusei, group stage
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| Kato Masao 9p | Haruyama Isamu 9p | B+R |  |
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| [1972-04-05] 16th Japanese Prime Minister's Cup, round 2
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| Haruyama Isamu 6p | Kato Masao 7p | W+R | |
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| [1971-02-04] 15th Japanese Prime Minister's Cup, round 1
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| Kato Masao 6p | Haruyama Isamu 6p | B+R | |
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