6 September 2025

• curprev 16:5016:50, 6 September 2025 Mon2016 talk contribs 3,494 bytes 0 →Solution 2 (non-rigorous)
• curprev 16:4916:49, 6 September 2025 Mon2016 talk contribs 3,494 bytes 0 →Solution 2 (non-rigorous)

22 July 2020

• curprev 13:3713:37, 22 July 2020 Jbala talk contribs 3,494 bytes +2 No edit summary
• curprev 13:3513:35, 22 July 2020 Jbala talk contribs 3,492 bytes +13 No edit summary

18 July 2020

• curprev 22:1522:15, 18 July 2020 N828335 talk contribs 3,479 bytes +842 No edit summary

6 June 2019

• curprev 11:5211:52, 6 June 2019 Tost talk contribs 2,637 bytes +531 No edit summary

13 April 2018

• curprev 22:2122:21, 13 April 2018 A1b2 talk contribs 2,106 bytes +640 No edit summary

27 March 2015

• curprev 17:5317:53, 27 March 2015 LauraZed talk contribs 1,466 bytes +169 →Problem

30 June 2013

• curprev 17:3017:30, 30 June 2013 DivideBy0 talk contribs m 1,297 bytes 0 →Solution: extra parens

9 April 2008

• curprev 18:0618:06, 9 April 2008 Azjps talk contribs m 1,297 bytes −166 No edit summary

6 May 2007

• curprev 13:2613:26, 6 May 2007 I_like_pie talk contribs 1,463 bytes +36 →See also

26 March 2007

• curprev 18:5818:58, 26 March 2007 Scorpius119 talk contribs 1,427 bytes +802 solution added

21 January 2007

• curprev 00:3000:30, 21 January 2007 Minsoens talk contribs 625 bytes +428 No edit summary

8 November 2006

• curprev 23:5123:51, 8 November 2006 I_like_pie talk contribs 197 bytes 0 No edit summary
• curprev 20:3820:38, 8 November 2006 JBL talk contribs m 197 bytes +127 No edit summary

9 July 2006

• curprev 17:0117:01, 9 July 2006 Joml88 talk contribs 70 bytes +70 No edit summary