Share: Title:"Chess Teachings," by Hans Ostrom Duration: 1:04 Plays: 93 views Published: 7 years ago Download MP3 Download MP4 Simillar Videos ▶️ 0:25 "on Being A Professor," By Hans Ostrom 93 views • 4 years ago ▶️ 0:35 "broken, Amazing, Awful," By Hans Ostrom 93 views • 10 years ago ▶️ 0:40 "location," By Hans Ostrom 93 views • 11 years ago ▶️ 0:55 "the Ambitionator," By Hans Ostrom 93 views • 14 years ago ▶️ 1:30 "coffee," By Hans Ostrom 93 views • 4 years ago