1 September 2025

• curprev 17:3917:39, 1 September 2025 Martianrunner talk contribs 4,200 bytes −22 →Solution 4 (rewording of Solution 3)
• curprev 17:3917:39, 1 September 2025 Martianrunner talk contribs 4,222 bytes −2 →Solution 4 (rewording of Solution 3)
• curprev 17:3917:39, 1 September 2025 Martianrunner talk contribs 4,224 bytes +43 →Solution 4 (rewording of Solution 3)
• curprev 17:3817:38, 1 September 2025 Martianrunner talk contribs 4,181 bytes +4 →Solution 4 (rewording of Solution 3)
• curprev 17:3717:37, 1 September 2025 Martianrunner talk contribs 4,177 bytes +17 →Solution 4 (rewording of Solution 3)
• curprev 17:3617:36, 1 September 2025 Martianrunner talk contribs 4,160 bytes +603 No edit summary

25 April 2022

• curprev 18:3718:37, 25 April 2022 Smileapple talk contribs 3,557 bytes +2 →Problem

13 March 2022

• curprev 18:5318:53, 13 March 2022 Superdupergood talk contribs m 3,555 bytes 0 →Solution 3

7 November 2021

• curprev 02:2102:21, 7 November 2021 Arrow-arrow talk contribs 3,555 bytes +1,259 No edit summary
• curprev 02:2002:20, 7 November 2021 Arrow-arrow talk contribs 2,296 bytes −1,260 →Solution 1

3 May 2021

• curprev 19:0319:03, 3 May 2021 Etvat talk contribs 3,556 bytes −20 No edit summary
• curprev 18:5718:57, 3 May 2021 Etvat talk contribs 3,576 bytes +14 No edit summary

24 May 2017

• curprev 17:3017:30, 24 May 2017 First talk contribs 3,562 bytes −1 →Solution 4
• curprev 17:3017:30, 24 May 2017 First talk contribs 3,563 bytes −509 →Solution 3

2 March 2017

• curprev 21:0121:01, 2 March 2017 Mingxu talk contribs 4,072 bytes −8 →Solution

1 December 2015

• curprev 14:3414:34, 1 December 2015 Sheriff talk contribs m 4,080 bytes −15 No edit summary

4 July 2013

• curprev 18:3518:35, 4 July 2013 Nathan wailes talk contribs 4,095 bytes +15 No edit summary

9 August 2012

• curprev 18:3018:30, 9 August 2012 Fro116 talk contribs 4,080 bytes +649 →Solution

22 November 2007

• curprev 13:0713:07, 22 November 2007 Azjps talk contribs 3,431 bytes +2,045 solutions, (2) revised version of me@home's

20 November 2007

• curprev 21:5721:57, 20 November 2007 Temperal talk contribs 1,386 bytes +35 category
• curprev 21:5721:57, 20 November 2007 Temperal talk contribs 1,351 bytes +467 →Solution: partial solution
• curprev 14:3414:34, 20 November 2007 Minsoens talk contribs m 884 bytes +814 No edit summary

9 July 2006

• curprev 17:3217:32, 9 July 2006 Joml88 talk contribs 70 bytes +70 No edit summary