8 March 2021

• curprev 15:1415:14, 8 March 2021 Sugar rush talk contribs 4,581 bytes +16 No edit summary

17 August 2020

• curprev 18:5718:57, 17 August 2020 Jackshi2006 talk contribs 4,565 bytes +20 →Solution 3
• curprev 18:5618:56, 17 August 2020 Jackshi2006 talk contribs 4,545 bytes −29 →Solution 3
• curprev 18:5518:55, 17 August 2020 Jackshi2006 talk contribs 4,574 bytes +856 →Solution 2

28 February 2016

• curprev 15:1315:13, 28 February 2016 Mathgeek2006 talk contribs 3,718 bytes +1,802 →Solution

7 February 2014

• curprev 17:0317:03, 7 February 2014 JosephSuk talk contribs m 1,916 bytes +1 →Solution

4 July 2013

• curprev 18:2818:28, 4 July 2013 Nathan wailes talk contribs 1,915 bytes +15 No edit summary

3 January 2009

• curprev 15:5715:57, 3 January 2009 Minsoens talk contribs m 1,900 bytes +363 →Solution

16 October 2008

• curprev 18:0218:02, 16 October 2008 Azjps talk contribs 1,537 bytes +1,115 sol, asymptote needed

28 March 2007

• curprev 22:2822:28, 28 March 2007 Minsoens talk contribs m 422 bytes +226 No edit summary

11 November 2006

• curprev 23:5723:57, 11 November 2006 JBL talk contribs m 196 bytes +126 No edit summary

9 July 2006

• curprev 17:2817:28, 9 July 2006 Joml88 talk contribs 70 bytes +70 No edit summary