Ponder This

February 2010

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Ponder This Challenge:

This month's challenge is a famous chess problem. To enjoy it, don't cheat by looking for a solution over the Internet.

What are the five moves in a chess game that starts with the white king's pawn moving 2 squares ahead (e2-e4) and ends with a black knight capturing a white rook leading to a check-mate?

Update 02/03: The games starts with all pieces in their regular place; and by five moves we mean 5 white and 5 black.

We will post the names of those who submit a correct, original solution! If you don't want your name posted then please include such a statement in your submission!

We invite visitors to our website to submit an elegant solution. Send your submission to the ponder@il.ibm.com.

If you have any problems you think we might enjoy, please send them in. All replies should be sent to: ponder@il.ibm.com

  

Challenge: 01/29/2010 @ 12:00 PM EST
Solution: 03/01/2010 @ 12:00 PM EST
List Updated: 03/12/2010 @ 12:00 PM EST

People who answered correctly:

Ioan Marius Popdan (01/29/2010 02:40 PM EDT)
John T. Robinson (01/29/2010 11:27 PM EDT)
Joshua Green (01/30/2010 06:18 PM EDT)
Rickard Björklund (01/30/2010 08:13 PM EDT)
Dmitry Litvinenko (01/31/2010 01:48 PM EDT)
Pulsar (H.Nathen) (01/31/2010 05:17 PM EDT)
Michael Brand (01/31/2010 11:17 PM EDT)
Robin Chandra (02/01/2010 04:48 PM EDT)
Patrick Knupfer (02/01/2010 05:34 PM EDT)
Sevag Papazian (02/02/2010 08:58 AM EDT)
Federico Felizzi (02/03/2010 07:10 AM EDT)
Daniel Bitin (02/03/2010 11:36 AM EDT)
Harold Cataquet (02/04/2010 07:59 PM EDT)
Clive Tong (02/05/2010 06:10 AM EDT)
Robert DiMarco (02/07/2010 10:51 PM EDT)
Fabio Filatrella (02/08/2010 02:12 PM EDT)
Thomas Rohr (02/09/2010 05:05 AM EDT)
Chris Becker (02/10/2010 05:02 PM EDT)
Andrew Buchanan (02/13/2010 10:40 AM EDT)
Eamon Warnock (02/14/2010 05:07 AM EDT)
James Carter (02/17/2010 06:47 AM EDT)
Liubing Yu (02/18/2010 02:01 AM EDT)
Daniel Chong Jyh Tar (02/21/2010 09:19 PM EDT)
Albert Stadler (02/22/2010 01:27:59 AM EDT)
Adriana Clerici (02/24/2010 06:15 AM EDT)
Nyles Heise (02/25/2010 07:10 PM EDT)
Ayal Zaks (02/27/2010 08:01 PM EDT)
Bojan Basic (02/28/2010 02:41 PM EDT)
Logan Hunter (03/02/2010 01:58 PM EDT)
Michael D Moffitt (03/04/2010 08:46 PM EDT)
Don Gosiewski (03/05/2010 02:16 AM EDT)

Attention: If your name is posted here and you wish it removed please send email to the ponder@il.ibm.com.