A third dice trick with Ben Sparks - see the trilogy of tricks at: https://bit.ly/Dice_Trilogy
More links & stuff in full description below ↓↓↓
Ben Sparks: https://www.bensparks.co.uk
And his YouTube: https://www.youtube.com/c/SparksMaths
More Ben Sparks on Numberphile: http://bit.ly/Sparks_Playlist
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