A MATTER OF CON SCIENCE



Presented at the 2013 National Puzzlers League Convention
by Drs. Dart, Tinhorn, and Zebraboy
(aka Darren Rigby, David Shukan, and Mark Halpin)





We would very much like to thank the following for their generosity in testing-solving and miscellaneous other support: David Arnott, Ben Bass, John Beck, Trysta Bissett, Ryan Davis, Mike Gardner, Amy Goldstein, John Greg Gomez, Chris Johnson, Mike King, Doug Peterson, Jeff Shearer, Rebecca Shukan, Nathan Squires, Ian Tullis, and Patti Varol




All contents copyright © 2013 Mark Halpin, Darren Rigby, and David Shukan