28 February 2020

• curprev 20:1220:12, 28 February 2020 Bobcats talk contribs m 6,977 bytes −392 →Problem 6

20 February 2019

• curprev 04:0604:06, 20 February 2019 P groudon talk contribs 7,369 bytes +95 No edit summary

9 March 2018

• curprev 21:2521:25, 9 March 2018 QuestForKnowledge talk contribs m 7,274 bytes +2 →Problem 6

9 October 2017

• curprev 20:3020:30, 9 October 2017 Blackhawk talk contribs 7,272 bytes +15 →Problem 6
• curprev 15:5215:52, 9 October 2017 Blackhawk talk contribs 7,257 bytes +375 →Problem 6

29 December 2016

• curprev 23:2523:25, 29 December 2016 Ayushk talk contribs 6,882 bytes −3 →Problem 11

4 July 2013

• curprev 22:2222:22, 4 July 2013 Nathan wailes talk contribs 6,885 bytes +15 No edit summary

18 May 2010

• curprev 11:4911:49, 18 May 2010 Azjps talk contribs m 6,870 bytes 0 →Problem 15: typo fix

26 June 2008

• curprev 17:5517:55, 26 June 2008 Azjps talk contribs m 6,870 bytes +20 No edit summary

8 July 2006

• curprev 22:4422:44, 8 July 2006 Joml88 talk contribs 6,850 bytes +259 No edit summary
• curprev 22:4122:41, 8 July 2006 Joml88 talk contribs 6,591 bytes +2,024 No edit summary
• curprev 22:3022:30, 8 July 2006 Joml88 talk contribs 4,567 bytes +95 →Problem 11
• curprev 22:2822:28, 8 July 2006 Joml88 talk contribs 4,472 bytes −31 →Problem 10
• curprev 22:2622:26, 8 July 2006 Joml88 talk contribs m 4,503 bytes −304 →Problem 9
• curprev 22:2522:25, 8 July 2006 Joml88 talk contribs 4,807 bytes +445 →Problem 8
• curprev 22:2322:23, 8 July 2006 Joml88 talk contribs 4,362 bytes −123 →Problem 7
• curprev 22:2222:22, 8 July 2006 Joml88 talk contribs 4,485 bytes +744 →Problem 6
• curprev 22:2022:20, 8 July 2006 Joml88 talk contribs 3,741 bytes −161 →Problem 5
• curprev 22:1922:19, 8 July 2006 Joml88 talk contribs 3,902 bytes −283 →Problem 4
• curprev 22:1822:18, 8 July 2006 Joml88 talk contribs 4,185 bytes +230 →Problem 3
• curprev 22:1722:17, 8 July 2006 Joml88 talk contribs 3,955 bytes +214 →Problem 2
• curprev 22:1622:16, 8 July 2006 Joml88 talk contribs 3,741 bytes +1 No edit summary
• curprev 22:1422:14, 8 July 2006 Joml88 talk contribs 3,740 bytes −56 →Problem 1

5 July 2006

• curprev 13:0313:03, 5 July 2006 Ragnarok23 talk contribs 3,796 bytes −1 No edit summary
• curprev 11:5611:56, 5 July 2006 Ragnarok23 talk contribs 3,797 bytes +1,504 No edit summary
• curprev 11:3111:31, 5 July 2006 Ragnarok23 talk contribs 2,293 bytes +2,293 No edit summary