溫哥華 暑期課 何數棋謎 Ho Math and Chess Learning Center
9:33
Added: 3 years ago
From: mathandchess
Views: 1,253
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  • If you live in Lakeland Florida, I can help.

    Message me!

    George Grasser, USCF Master 2224

    georgegrasser 2 years ago

  • this seems very interesting, anyway that we could get it in english subtitles

    0001kd 3 years ago

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