Flash Anzan at the All-Japan National Soroban Championship 2012
Flash Anzan at the All-Japan National Soroban Championship in Kyoto. Fifteen digits in seconds.
4 years ago 00:08:24 1
4 years ago 00:02:00 1
6 years ago 00:01:55 1
8 years ago 00:18:30 1
8 years ago 00:01:08 3
10 years ago 00:01:48 60
10 years ago 00:00:08 2
