http://www.ibm.com/research/ The challenge for February is now posted. Fri, 01 February 2013 12:00:00 EST en-us http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/January2013.html The solution for January is now posted Fri, 01 February 2013 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/February2013.html The challenge for February is now posted Fri, 01 February 2013 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/December2012.html The solution for December is now posted Wed, 02 January 2013 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/January2013.html The challenge for January is now posted Wed, 02 January 2013 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/November2012.html The solution for November is now posted Mon, 03 December 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/December2012.html The challenge for December is now posted Thu, 29 November 2012 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/October2012.html The solution for October is now posted Thu, 01 November 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/November2012.html The challenge for November is now posted Wed, 31 October 2012 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/September2012.html The solution for September is now posted Mon, 01 October 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/October2012.html The challenge for October is now posted Fri, 28 September 2012 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/August2012.html The solution for August is now posted Tue, 04 September 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/September2012.html The challenge for September is now posted Tue, 04 September 2012 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/July2012.html The solution for July is now posted Thu, 31 July 2012 18:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/August2012.html The challenge for August is now posted Thu, 31 July 2012 18:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/June2012.html The solution for June is now posted Mon, 2 July 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/July2012.html The challenge for July is now posted Thu, 28 Jun 2012 13:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/May2012.html The solution for May is now posted Fri, 1 June 2012 14:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/June2012.html The challenge for June is now posted Thu, 31 May 2012 13:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/April2012.html The solution for April is now posted Tue, 1 May 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/May2012.html The challenge for May is now posted Thu, 26 April 2012 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/March2012.html The solution for March is now posted Thu, 2 Apr 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/April2012.html The challenge for April is now posted Thu, 30 Mar 2012 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/February2012.html The solution for February is now posted Thu, 1 Mar 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/March2012.html The challenge for March is now posted Thu, 1 Mar 2012 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/January2012.html The solution for January is now posted Wed, 1 Feb 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/February2012.html The challenge for February is now posted Wed, 1 Feb 2012 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/December2011.html The solution for December is now posted Thu, 1 Jan 2012 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/January2012.html The challenge for January is now posted Thu, 1 Jan 2012 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/November2011.html The solution for November is now posted Thu, 1 Dec 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/December2011.html The challenge for December is now posted Thu, 1 Dec 2011 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/October2011.html The solution for October has been updated Fri, 4 Nov 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/November2011.html The challenge for November is now posted Tue, 1 Nov 2011 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/October2011.html The solution for October is now posted Tue, 1 Nov 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/October2011.html The challenge for October is now posted Sat, 1 Oct 2011 11:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/September2011.html The solution for September is now posted Sat, 1 Oct 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/September2011.html The challenge for September is now posted Thu, 1 Sep 2011 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/August2011.html the solution for August is now posted Thu, 1 Sep 2011 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/July2011.html the solution for July is now posted Thu, 1 Sep 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/August2011.html The challenge for August is now posted Fri, 29 Jul 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/July2011.html The challenge for July has been updated Fri, 29 Jul 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/July2011.html The challenge for July is now posted Fri, 1 Jul 2011 12:00:00 EST http://domino.research.ibm.com/comm/wwwr_ponder.nsf/solutions/June2011.html the solution for June is now posted Wed, 6 Jul 2011 12:00:00 est http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/June2011.html The challenge for June is now posted Wed, 1 Jun 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/May2011.html The solution for May is now posted Wed, 1 Jun 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/March2010.html The solution for March 2010 challenge has been updated Wed, 18 May 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/April2011.html The solution for April has been updated Wed, 4 May 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/May2011.html The challenge for May is now posted Mon, 2 May 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/April2011.html The solution for April is now posted Mon, 2 May 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/April2011.html The challenge for April is now posted Fri, 1 Apr 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/March2011.html The solution for March is now posted Fri, 1 Apr 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/March2011.html The challenge for March is now posted Tue, 2 Mar 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/February2011.html The solution for February is now posted Tue, 1 Mar 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/February2011.html The challenge for February is now posted Tue, 1 Feb 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/January2011.html The solution for January is now posted Tue, 1 Feb 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/January2010.html The challenge for January is now posted Tue, 4 Jan 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/December2010.html The solution for December is now posted Tue, 4 Jan 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/November2010.html The solution for November is now posted Tue, 4 Jan 2011 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/December2010.html The challenge for December is now posted Fri, 3 Dec 2010 14:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/November2010.html The new challenge for November is now posted Tue, 2 Nov 2010 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/October2010.html The solution for October is now posted Tue, 2 Nov 2010 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/October2010.html October challenge updated Mon, 4 Oct 2010 11:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/October2010.html October challenge updated Mon, 4 Oct 2010 11:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/October2010.html The new challenge for October is now posted Thu, 30 Sep 2010 14:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/September2010.html The new solution for September is now posted Thu, 30 Sep 2010 11:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Challenges/September2010.html The new challenge for September is now posted Wed, 1 Sep 2010 11:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/August2010.html The solution for August is now posted Wed, 1 Sep 2010 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Challenges/July2010.html The new challenge for July is now posted Thu, 1 Jul 2010 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/June2010.html The solution for June is now posted Thu, 1 Jul 2010 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Challenges/June2010.html The new challenge for June is now posted Tue, 1 Jun 2010 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/May2010.html The solution for May is now posted Tue, 1 Jun 2010 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Challenges/May2010.html May challenge updated Mon, 10 May 2010 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Challenges/May2010.html May challenge updated Thu, 6 May 2010 11:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Challenges/May2010.html The new challenge for May is now posted Fri, 30 Apr 2010 11:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/March2010.html The new solution for March is now posted Thu, 1 Apr 2010 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/April2010.html The new challenge for April is now posted Tue, 30 Mar 2010 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/February2010.html The new solution for February is now posted Mon, 1 Mar 2010 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/March2010.html The new challenge for March is now posted Mon, 1 Mar 2010 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/January2010.html The new solution for January is now posted Mon, 1 Feb 2010 14:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/February2010.html The new challenge for February is now posted Fri, 29 Jan 2010 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/November2009.html The new solution for November is now posted Tue, 1 Dec 2009 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/December2009.html The new challenge for December is now posted Mon, 30 Nov 2009 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/November2009.html The new challenge for November is now posted Wed, 4 Nov 2009 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/October2009.html New hint posted for the October Ponder This challenge Wed, 7 Oct 2009 15:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/October2009.html The new challenge for October is now posted Thu, 1 Oct 2009 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/September2009.html The solution for September is now posted Thu, 1 Oct 2009 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/September2009.html The new challenge for September is now posted Mon, 31 Aug 2009 15:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/August2009.html The solution for August is now posted Mon, 31 Aug 2009 09:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/August2009.html The new challenge for August is now posted Mon, 3 Aug 2009 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/July2009.html The solution for July is now posted Mon, 3 Aug 2009 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/July2009.html New hint posted for the July Ponder This challenge Wed, 1 Jul 2009 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Solutions/June2009.html The solution for June is now posted Wed, 1 Jul 2009 12:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/July2009.html The new challenge for July is now posted Mon, 29 Jun 2009 14:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/June2009.html The new challenge for June is now posted Thu, 28 May 2009 10:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/May2009.html The new challenge for May is now posted Thu, 30 Apr 2009 15:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/May2009.html New hint posted for the April Ponder This challenge Wed, 22 Apr 2009 17:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/April2009.html The new challenge for April is now posted Wed, 1 Apr 2009 16:00:00 EST http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/challenges/May2009.html New hint posted for the April Ponder This challenge Fri, 27 Mar 2009 12:00:00 EST