1) Chess problem 
Nolot is a chess test suite with 11 very difficult positions from real games. They were compiled by Pierre Nolot for the French chess magazine Gambisco and posted on the rec.games.chess Usenet group in 1994. Some of these positions are particularly hard to solve for chess engines. ==Problem 1 == The best Novag computer, the Diablo 68000, finds 26....