IBM Research | Ponder This | February 2016 challenges

# Ponder This

## February 2016

<<January February March>>

Ponder This Challenge:

This month's challenge is about IBM's InterConnect 2016 conference.
Assign each letter a different digit such that the following mathematical equations would be correct (** denotes exponentiation):
a**connect = c (mod inter)
a**connect = a**toe (mod at)
a**connect = a**toe (mod cm)
n**i = ban

Hint: By guessing a little, this can almost be entirely solved without using a computer.
For a bonus '*', what is the connection of the solution to "XCF MODULE ID FILTER NOT ACCEPTED"?

Update (04/02):

1. mod is modulo operation. I.e. x=y(mod z) means that x and y has the same remainder when divided by z. Different letters should be assigned to different digits.

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: 28/01/2016 @ 12:00 PM EST
Solution: 01/03/2016 @ 12:00 PM EST
List Updated: 04/02/2016 @ 12:00 PM EST

Daniel Bitin (28/01/2016 05:39 PM IDT)
Robert Gerbicz (28/01/2016 05:46 PM IDT)
Jean-Baptiste Rouquier (28/01/2016 06:19 PM IDT)
Lorenz Reichel (28/01/2016 06:49 PM IDT)
*Armin Krauss (28/01/2016 11:18 PM IDT)
Andreas Stiller (29/01/2016 12:49 AM IDT)
Jimmy Waters (29/01/2016 01:34 AM IDT)
Radu-Alexandru Todor (29/01/2016 01:43 AM IDT)
Hao Zheng (29/01/2016 03:44 AM IDT)
Nicolas Bitouze (29/01/2016 06:21 AM IDT)
Yan-Wu He (29/01/2016 03:43 PM IDT)
*Lewis Chen (29/01/2016 03:57 PM IDT)
*Francis Golding (29/01/2016 04:10 PM IDT)
Kang Jin Cho (29/01/2016 04:51 PM IDT)
*Donald T Dodson (29/01/2016 10:03 PM IDT)
Brendan Berger (29/01/2016 10:11 PM IDT)
Alex Fleischer (30/01/2016 10:53 AM IDT)
Shirish Chinchalkar (30/01/2016 04:40 PM IDT)
Harald Bögeholz (30/01/2016 08:34 PM IDT)
Todd Will (31/01/2016 12:25 AM IDT)
Peter Gerritson (31/01/2016 05:29 AM IDT)
Wang Gangyi (31/01/2016 09:23 AM IDT)
Claudio Hüni (31/01/2016 11:35 AM IDT)
Fabio Michele Negroni (31/01/2016 01:36 PM IDT)
Aviv Nisgav (31/01/2016 05:22 PM IDT)
Kwonil Kobe Ko (31/01/2016 07:01 PM IDT)
*Ajay Mallepally (31/01/2016 07:08 PM IDT)
Kipp Johnson (31/01/2016 08:55 PM IDT)
*Gary M. Gerken (31/01/2016 09:37 PM IDT)
Sergey Koposov (01/02/2016 02:03 AM IDT)
*Stéphane Higueret (01/02/2016 02:53 PM IDT)
Joseph DeVincentis (01/02/2016 04:17 PM IDT)
Minxi Jiang (01/02/2016 05:05 PM IDT)
Raymond Lo (01/02/2016 06:17 PM IDT)
Nadir S (01/02/2016 09:50 PM IDT)
Pål Hermunn Johansen (01/02/2016 10:03 PM IDT)
*Motty Porat (01/02/2016 11:56 PM IDT)
*David F. H. Dunkley (02/02/2016 12:18 AM IDT)
Victor Chang (02/02/2016 02:38 AM IDT)
Scott Abbey (02/02/2016 03:05 AM IDT)
Arsene Lui (02/02/2016 08:22 AM IDT)
*Arthur Vause (02/02/2016 11:46 AM IDT)
Tomáš Jurík (02/02/2016 01:06 PM IDT)
Roberto Tauraso (02/02/2016 01:57 PM IDT)
*Rudy Cortembert (02/02/2016 03:57 PM IDT)
*Chris Lewis (02/02/2016 05:09 PM IDT)
Franciraldo Cavalcante (02/02/2016 07:46 PM IDT)
*Kevin Petrychyn (02/02/2016 10:26 PM IDT)
Gida Pataki (03/02/2016 01:47 AM IDT)
Steven Langerwerf (03/02/2016 06:41 PM IDT)
Di Luo (04/02/2016 08:22 AM IDT)
Jan Rothkegel (04/02/2016 09:31 AM IDT)
Guang-Zhong Sun (04/02/2016 10:38 AM IDT)
Hamidreza Bidar (04/02/2016 12:50 PM IDT)
Mathias Schenker (04/02/2016 03:50 PM IDT)
*Jonathan David Johnston (04/02/2016 05:19 PM IDT)
*Martin Thiim (04/02/2016 05:26 PM IDT)
David Friedman (04/02/2016 11:42 PM IDT)
Ali Can Keserel (05/02/2016 02:07 PM IDT)
Matthias Bussas (05/02/2016 03:59 PM IDT)
*Paolo Farinelli (05/02/2016 07:24 PM IDT)
*Lawrence Hon (06/02/2016 07:01 PM IDT)
Matt Falk (07/02/2016 06:00 AM IDT)
Adrian Neacsu (07/02/2016 05:41 PM IDT)
Liubing Yu (07/02/2016 05:58 PM IDT)
Tahsin Erdal Berk (08/02/2016 02:20 PM IDT)
*Stefano Leucci (08/02/2016 04:39 PM IDT)
Kautil Reddy (08/02/2016 04:57 PM IDT)
*Michael Rosola (09/02/2016 04:08 AM IDT)
José Eduardo Gaboardi de Carvalho (09/02/2016 06:04 PM IDT)
Albert Stadler (09/02/2016 10:01 PM IDT)
Larry Kearney (10/02/2016 03:10 AM IDT)
*Emir Haleva (10/02/2016 11:11 AM IDT)
Tim Cieplowski (11/02/2016 04:55 AM IDT)
*Shouky Dan & Tamir Ganor (11/02/2016 12:53 PM IDT)
Beni Bachmann (11/02/2016 11:59 PM IDT)
Junjiajia Long (12/02/2016 08:21 AM IDT)
Zoltan Haindrich (14/02/2016 01:22 AM IDT)
Hyun Min Victoria Woo (15/02/2016 12:51 AM IDT)
Dieter Beckerle (16/02/2016 12:35 PM IDT)
J. Eric Ivancich (16/02/2016 04:41 PM IDT)
*Rahul Upakare (16/02/2016 07:27 PM IDT)
*Enis Berk Çoban (17/02/2016 08:00 PM IDT)
Yuval Salant (17/02/2016 10:47 PM IDT)
*Mohamed Elsharnouby (18/02/2016 10:17 AM IDT)
*Karim Alaoui (19/02/2016 02:55 PM IDT)
Grant Boudreaux (19/02/2016 04:27 PM IDT)
Erik Wünstel (19/02/2016 07:34 PM IDT)
*Anders Bisbjerg Madsen (19/02/2016 08:21 PM IDT)
*Akshay G. Joshi (21/02/2016 10:13 PM IDT)
David Greer (23/02/2016 12:59 AM IDT)
Tilo Anschütz (24/02/2016 09:10 PM IDT)
Adrian Toncean (25/02/2016 09:05 AM IDT)
*Amir Sarid (26/02/2016 09:11 PM IDT)
Nyles Heise (27/02/2016 04:07 AM IDT)
Alain Stephan (27/02/2016 06:05 PM IDT)
*Benjamin Lui (27/02/2016 07:23 PM IDT)
Zhou Ding Wen (28/02/2016 07:41 AM IDT)
*Jörg Binder (28/02/2016 06:34 PM IDT)
Martin Sergio H. Faester (28/02/2016 08:18 PM IDT)
Oscar Volpatti (01/03/2016 10:19 AM IDT)
Mihail-Iulian Plesa (01/03/2016 06:13 PM IDT)