第12回最強者決定戦 (だい12かいさいきょうしゃけっていせん) は、1972年度の最強者決定戦である。順位戦のB級2組以上の棋士に出場権が与えられた。C級1組以下の棋士は第16回古豪新鋭戦に出場した。
優勝者は中原誠名人、準優勝者は大山康晴王将と記念対局を行った。決勝三番勝負は、有吉道夫八段が原田泰夫八段を下した[3]。
対局者 | 第1局 | 第2局 | 第3局 | |
1972年 10月24日 | 1972年 10月26日 | 1972年 11月7日 |
有吉道夫八段 | ○ | ● | ○ | 優勝 |
原田泰夫八段 | ● | ○ | ● | |
| 2回戦 | | 3回戦 | | 4回戦 | | 準々決勝 | | 準決勝 | | | | | | | | | | | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | 灘 | | ● | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | 灘 | | - | | | | | | | | | | | | | | | | 灘蓮照八段 | | - | | | | | | | | | | | | | | | | | | | | | | | | | | 石田 | | ○ | | | | | | | | 木村義徳七段 | | ● | | | | | | | | | | | | | | | | | | 石田 | | ○ | | | | | | | | | | | | | | | | 石田和雄六段 | | ○ | | | | | | | | | | | | | | | | | | | | 石田 | | ○ | | | | | | | | | | | 佐瀬勇次七段 | | ● | | | | | | | | | | | | | | | | | 大内 | | ● | | | | | | | | | | | | | | | 大内延介七段 | | ○ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 石田和雄六段 | ● | | | | 松田茂行八段 | | ○ | | | | | | | | | | | | | | | | | | | 松田 | | ○ | | | | | | | | | | | | | | | | 花村元司八段 | | ● | | | | | | | | | | | | | | | | | | | | 松田 | | ○ | | | | | | | | | | | A/ 富沢幹雄七段 | | ● | | | | | | | | | | | | | | | | 芹沢 | | ● | | | | | | | | | | | | | | 芹沢博文八段 | | ○ | | | | | | | | | | | | | | | | | | | | | | | | 松田 | | ● | | | | | | 塚田正夫永世九段 | | - | | | | | | | | | | | | | | | | | 塚田 | | - | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | 塚田 | | ● | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | 有吉 | | ○ | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | 有吉 | | - | | | | | | | | | | | | | | | 有吉道夫八段 | | - | | | | | | | | | | | | | | | | | | | | | | | | | 有吉 | | ○ | | | | | | | 本間爽悦七段 | | ● | | | | | | | | | | | | | | | | | 神田 | | ● | | | | | | | | | | | | | | | 神田鎮雄六段 | | ○ | | | | | | | | | | | | | | | | | | | 熊谷 | | ● | | | | | | | | | | B/ 南口繁一八段 | | ● | | | | | | | | | | | | | | | | 熊谷 | | ○ | | | | | | | | | | | 決勝進出 | | | 熊谷達人八段 | | ○ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 有吉道夫八段 | ○ | | | 高島弘光七段 | | ○ | | | | | | | | | | | | | | | | | | | 高島 | | ○ | | | | | | | | | | | | | | | | | 桐山清澄六段 | | ● | | | | | | | | | | | | | | | | | | | | | 高島 | | ● | | | | | | | | | | | | 大野源一八段 | | ● | | | | | | | | | | | | | | | | | 板谷 | | ● | | | | | | | | | | | | | | | 板谷進六段 | | ○ | | | | | | | | | | | | | | | | | | | | | | | | | 内藤 | | ● | | | | | | | 内藤國雄八段 | | - | | | | | | | | | | | | | | | | | | 内藤 | | - | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | 内藤 | | ○ | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 2回戦 | | 3回戦 | | 4回戦 | | 準々決勝 | | 準決勝 | | | | | | | | | | | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | 米長 | | ○ | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | 米長 | | - | | | | | | | | | | | | | | | | 米長邦雄八段 | | - | | | | | | | | | | | | | | | | | | | | | | | | | | 米長 | | ○ | | | | | | | | C/ 小堀清一八段 | | ○ | | | | | | | | | | | | | | | | | | 小堀 | | ● | | | | | | | | | | | | | | | | D/ 剱持松二六段 | | ● | | | | | | | | | | | | | | | | | | | | 二上 | | ● | | | | | | | | | | | 二上達也八段 | | - | | | | | | | | | | | | | | | | | 二上 | | ○ | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 米長邦雄八段 | ● | | | | 宮坂幸雄七段 | | ○ | | | | | | | | | | | | | | | | | | | 宮坂 | | ○ | | | | | | | | | | | | | | | | 長谷部久雄七段 | | ● | | | | | | | | | | | | | | | | | | | | 宮坂 | | ● | | | | | | | | | | | 坂口允彦八段 | | ● | | | | | | | | | | | | | | | | 関根 | | ● | | | | | | | | | | | | | | 関根茂八段 | | ○ | | | | | | | | | | | | | | | | | | | | | | | | 加藤一 | | ● | | | | | | 加藤一二三八段 | | - | | | | | | | | | | | | | | | | | 加藤一 | | - | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | 加藤一 | | ○ | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | 丸田 | | ○ | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | 丸田 | | - | | | | | | | | | | | | | | | 丸田祐三八段 | | - | | | | | | | | | | | | | | | | | | | | | | | | | 丸田 | | ● | | | | | | | 松下力八段 | | ● | | | | | | | | | | | | | | | | | 加藤博 | | ○ | | | | | | | | | | | | | | | 加藤博二八段 | | ○ | | | | | | | | | | | | | | | | | | | 加藤博 | | ● | | | | | | | | | | 北村昌男七段 | | ● | | | | | | | | | | | | | | | | 森 | | ● | | | | | | | | | | | 決勝進出 | | | 森雞二五段 | | ○ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 原田泰夫八段 | ○ | | | 大友昇八段 | | ○ | | | | | | | | | | | | | | | | | | | 大友 | | ● | | | | | | | | | | | | | | | | | 勝浦修六段 | | ● | | | | | | | | | | | | | | | | | | | | | 佐藤 | | ● | | | | | | | | | | | | E/ 西村一義六段 | | ● | | | | | | | | | | | | | | | | | 佐藤 | | ○ | | | | | | | | | | | | | | | 佐藤大五郎七段 | | ○ | | | | | | | | | | | | | | | | | | | | | | | | | 原田 | | ○ | | | | | | | 原田泰夫八段 | | - | | | | | | | | | | | | | | | | | | 原田 | | - | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | 原田 | | ○ | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | (Bye) | | - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
第16回古豪新鋭戦 (だい16かいこごうしんえいせん) は、1972年度の古豪新鋭戦である。順位戦のC級1組以下の棋士および奨励会三段に出場権が与えられた。決勝戦は、森安秀光五段が森安正幸四段を下した[3]。