13 Apr
2014
13 Apr
'14
6:03 p.m.
If you draw the 16 ways to slide, vs the 8 ways to hop, you get something like http://www.log24.com/log/pix10A/100619-FourDiamondTesseract.gif --rwg Bill Gosper wrote: Years ago Scott Kim told me that when shown the rules of chess as a child, he exclaimed "Ooh, a tesseract!" when they came to the knight. --rwg Adam>Why, exactly? As far as I can see, the tesseract only appears when one imposes that the knight inhabits a 4-by-4 toroidal grid. [Massive crop]