5 Shortz-era entries found. Click any date for context. See the dictionary definition.
|Sunday, October 13, 2013||98A||Violation of the first and second laws of thermodynamics||Jeff Chen|
|Tuesday, August 13, 2002||55A||Mechanical impossibility||Robert Malinow|
|Monday, November 1, 1999||36A||Inventor's impossible goal||Robert Frank|
|Tuesday, May 19, 1998||20A||"Impossible" achievement||William S. Cotter|
|Saturday, September 23, 1995||32A||Noted Paganini composition||Martin Ashwood-Smith|
4 results for PERPETUALMOTION from older pre-Shortz puzzles.
|Saturday, December 13, 1986||20A||Inventor's "impossible dream"||Ernst Theimer||Maleska|
|Monday, June 29, 1981||24A||Ancient scientific quest||Christy Ridley||Maleska|
|Wednesday, January 24, 1979||2D||An impossible dream||Jean J. Davison||Maleska|
|Saturday, March 11, 1978||15A||Inventor's dream||William Lutwiniak||Maleska|