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Problem of the week - 19/03/2012

Started by Borek | Last post by Fluorine March 23, 2012, 04:42:26 PM

13 Replies
10181 Views
Last post March 23, 2012, 04:42:26 PM
by Fluorine
Problem of the week - 08/10/2012

Started by Borek | Last post by Big-Daddy November 12, 2012, 02:27:16 PM

14 Replies
11297 Views
Last post November 12, 2012, 02:27:16 PM
by Big-Daddy
Problem of the week - 20/08/2012

Started by Borek | Last post by Borek August 21, 2012, 05:19:56 AM

10 Replies
8848 Views
Last post August 21, 2012, 05:19:56 AM
by Borek
Problem of the week - 08/04/2013

Started by Borek | Last post by Borek April 12, 2013, 05:38:10 PM

9 Replies
16523 Views
Last post April 12, 2013, 05:38:10 PM
by Borek
Problem of the week - 16/04/2012 & 23/04/2012

Started by Borek | Last post by Borek May 08, 2012, 04:30:18 AM

10 Replies
9550 Views
Last post May 08, 2012, 04:30:18 AM
by Borek
Problem of the week - 17/12/2012

Started by Borek | Last post by curiouscat December 28, 2012, 01:01:30 PM

13 Replies
15064 Views
Last post December 28, 2012, 01:01:30 PM
by curiouscat
Problem of the week - 20/02/2012

Started by Borek | Last post by Borek February 26, 2012, 04:29:36 AM

8 Replies
8243 Views
Last post February 26, 2012, 04:29:36 AM
by Borek
Problem of the week - 15/10/2012

Started by Borek | Last post by Rutherford October 20, 2012, 02:20:06 PM

9 Replies
7605 Views
Last post October 20, 2012, 02:20:06 PM
by Rutherford
Problem of the week - 06/05/2013

Started by Borek | Last post by delta609 May 11, 2013, 02:48:45 PM

10 Replies
21880 Views
Last post May 11, 2013, 02:48:45 PM
by delta609
Problem of the week - 02/07/2012

Started by Borek | Last post by Borek July 03, 2012, 04:32:51 PM

3 Replies
5763 Views
Last post July 03, 2012, 04:32:51 PM
by Borek
Problem of the week - 04/03/2013

Started by Borek | Last post by Big-Daddy March 08, 2013, 02:37:19 PM

9 Replies
14449 Views
Last post March 08, 2013, 02:37:19 PM
by Big-Daddy
Not a problem of the week, but similar level of difficulty

Started by Borek « 1 2 » | Last post by Borek November 19, 2017, 06:34:32 AM

18 Replies
29770 Views
Last post November 19, 2017, 06:34:32 AM
by Borek
Chemistry

Started by Richardjohn | Last post by Borek October 12, 2019, 04:03:28 AM

1 Replies
4335 Views
Last post October 12, 2019, 04:03:28 AM
by Borek
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