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Friday 17 May 1963 137th day - 228 days to come


Visited Barney Rich. He has made up sets of DOZEN DIAMONDS on cubes using nos. from 1 to 12. Tried a few throws. It is much easier to get a slam. Told him of the idea of throwing the dice, leaving them for all to see & bidding for the right to play them.

Gave him copy of FOCUS. Played 2 games. He played very poorly.

Gave me folder advertising "MATHEMATICAL RECREATIONS AND ESSAYS" by Walte William Rouse Ball. Mentions 3 Nim variations:

  • MOORE'S GAME
  • WYTHOFF'S GAME
  • DUDENEY'S GAME OF KAYLES

Loaned me reprint of magazine artical [sic] about commercial arithmetic games.

Felicia called. 3M has sent money to hold VACATION & AUCTION BLOCK for a longer time.