The CSPLib site is mirrored in England and the United States

CSPLib: a problem library for constraints

maintained by Ian P. Gent
ipg@cs.york.ac.uk
and Toby Walsh
tw@cs.york.ac.uk
with help from Bart Selman
selman@cs.cornell.edu

Version history

21/09/98 pre-release : initial design of CSPLib web pages.
04/03/99 official release of v1.0 : 14 problems in 5 areas.
02/10/99 official release of v2.0 : 17 problems in 5 areas, archived tarfile.
30/06/00 CSPLib moves to csplib.org, official release of v2.1: 22 problems in 5 areas, archived tarfile.
25/08/02 CSPLib now hosted at 4c.ucc.ie: 33 problems in 6 areas.