Tag: Chess Problem

Friday January 18, 2008

Friday January 18, 2008

Nativity … Todo lo sé por el lucero puro que brilla en la diadema de la Muerte. — Rubén Darío, born January 18, 1867

Thursday January 17, 2008

Well, she was    just seventeen…   (continued) "Mazur introduced the topic of prime numbers with a story from Don Quixote in which Quixote asked a poet to…

Wednesday January 16, 2008

Knight Moves: Geometry of the Eightfold Cube Click on the image for a larger version and an expansion of some remarks quoted here on Christmas 2005.