Katsuhiko_Okamoto
Katsuhiko Okamoto
Japanese inventor
Katsuhiko Okamoto is a Japanese inventor who specializes in modifications of the Rubik's Cube. Since 2001 he has created 31 such puzzles.[1]
Japanese inventor
Katsuhiko Okamoto is a Japanese inventor who specializes in modifications of the Rubik's Cube. Since 2001 he has created 31 such puzzles.[1]
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