26 October 2021

• curprev 00:3400:34, 26 October 2021 Owen1204 talk contribs 9,763 bytes +2,582 →O4

23 September 2020

• curprev 18:1418:14, 23 September 2020 Marble3 talk contribs m 7,181 bytes −128 →O2

29 July 2020

• curprev 01:3601:36, 29 July 2020 Yourdeath9111 talk contribs 7,309 bytes +4 →M3
• curprev 01:3401:34, 29 July 2020 Yourdeath9111 talk contribs 7,305 bytes +8 →M3

4 July 2020

• curprev 06:1306:13, 4 July 2020 Dance monkey 10 talk contribs 7,297 bytes +128 →O2
• curprev 06:0806:08, 4 July 2020 Dance monkey 10 talk contribs 7,169 bytes +1 →O2

31 July 2017

• curprev 09:5509:55, 31 July 2017 Pianoman24 talk contribs m 7,168 bytes +1 →O3
• curprev 09:5409:54, 31 July 2017 Pianoman24 talk contribs m 7,167 bytes +16 →O4

13 March 2015

• curprev 22:1022:10, 13 March 2015 FlamezofDeath talk contribs m 7,151 bytes +1 →O6
• curprev 22:0822:08, 13 March 2015 FlamezofDeath talk contribs m 7,150 bytes −1 →O1
• curprev 22:0422:04, 13 March 2015 FlamezofDeath talk contribs m 7,151 bytes 0 →M3

19 October 2013

• curprev 10:2310:23, 19 October 2013 Jeeudr talk contribs 7,151 bytes +409 Added possible solution for O6
• curprev 10:0510:05, 19 October 2013 Jeeudr talk contribs m 6,742 bytes +2 Corrected possible typo. Changed value from 4 to n-1 in M1, Line 4

8 August 2013

• curprev 12:0612:06, 8 August 2013 JRigo talk contribs m 6,740 bytes +7 →O1
• curprev 01:4601:46, 8 August 2013 JRigo talk contribs 6,733 bytes +20 →O1
• curprev 01:2701:27, 8 August 2013 JRigo talk contribs m 6,713 bytes +4 →O1
• curprev 01:2701:27, 8 August 2013 JRigo talk contribs 6,709 bytes +3 →O1
• curprev 01:2301:23, 8 August 2013 JRigo talk contribs m 6,706 bytes +1 →O1
• curprev 01:2201:22, 8 August 2013 JRigo talk contribs m 6,705 bytes +2 →O1
• curprev 01:2101:21, 8 August 2013 JRigo talk contribs m 6,703 bytes +36 →O1
• curprev 01:1601:16, 8 August 2013 JRigo talk contribs 6,667 bytes +44 →O1
• curprev 01:1101:11, 8 August 2013 JRigo talk contribs m 6,623 bytes +14 →O1
• curprev 01:1001:10, 8 August 2013 JRigo talk contribs 6,609 bytes −87 →O1
• curprev 01:0801:08, 8 August 2013 JRigo talk contribs m 6,696 bytes 0 →O1
• curprev 01:0701:07, 8 August 2013 JRigo talk contribs 6,696 bytes −408 →O1
• curprev 01:0401:04, 8 August 2013 JRigo talk contribs 7,104 bytes +32 →O1
• curprev 00:5900:59, 8 August 2013 JRigo talk contribs 7,072 bytes +2,713 →O1

30 March 2013

• curprev 11:5811:58, 30 March 2013 Djb86 talk contribs 4,359 bytes +550 Add solution and remove dead link

12 January 2013

• curprev 12:4712:47, 12 January 2013 Diabologuy talk contribs 3,809 bytes +12 →M1
• curprev 12:4512:45, 12 January 2013 Diabologuy talk contribs 3,797 bytes +14 →M1
• curprev 12:4512:45, 12 January 2013 Diabologuy talk contribs 3,783 bytes +79 →M1

1 June 2011

• curprev 16:0216:02, 1 June 2011 Ftong talk contribs 3,704 bytes 0 →M3
• curprev 11:0911:09, 1 June 2011 Ftong talk contribs 3,704 bytes +21 →M3
• curprev 11:0411:04, 1 June 2011 Ftong talk contribs 3,683 bytes +1 →M3
• curprev 11:0311:03, 1 June 2011 Ftong talk contribs 3,682 bytes 0 →M3
• curprev 11:0211:02, 1 June 2011 Ftong talk contribs 3,682 bytes +781 →Intermediate
• curprev 10:5510:55, 1 June 2011 Ftong talk contribs 2,901 bytes −350 →Introductory
• curprev 10:5410:54, 1 June 2011 Ftong talk contribs 3,251 bytes −34 →Olympiad
• curprev 10:4210:42, 1 June 2011 Ftong talk contribs 3,285 bytes 0 →Introductory
• curprev 10:4210:42, 1 June 2011 Ftong talk contribs 3,285 bytes 0 →Introductory
• curprev 10:4110:41, 1 June 2011 Ftong talk contribs 3,285 bytes +402 →Introductory
• curprev 10:2010:20, 1 June 2011 Ftong talk contribs 2,883 bytes 0 No edit summary
• curprev 10:2010:20, 1 June 2011 Ftong talk contribs 2,883 bytes −9 →Introductory
• curprev 10:2010:20, 1 June 2011 Ftong talk contribs 2,892 bytes +5 →Introductory
• curprev 10:1910:19, 1 June 2011 Ftong talk contribs 2,887 bytes +509 →Introductory

31 January 2009

• curprev 00:0100:01, 31 January 2009 Misof talk contribs 2,378 bytes +319 →O4

11 November 2007

• curprev 08:3508:35, 11 November 2007 Azjps talk contribs m 2,059 bytes −581 →O4: i don't think this works anymore

9 November 2007

• curprev 19:4719:47, 9 November 2007 Temperal talk contribs 2,640 bytes −24 →O7: not a real cat
• curprev 19:4519:45, 9 November 2007 Temperal talk contribs 2,664 bytes +12 →O4: parenthese
• curprev 19:3419:34, 9 November 2007 Temperal talk contribs 2,652 bytes +26 →Olympiad: solution templates