This is the limit that one is not allowed to cross or he is out.
http://oldsite.giessen46ers.de/fantalk/viewtopic.php?f=9&t=232217
http://bbsc.gaoxiaobbs.cn/forum.php?mod=viewthread&tid=49360&extra=
http://users.atw.hu/tunedthings/viewtopic.php?p=333670#333670
https://phantom.everburninglight.org/archbbs/viewtopic.php?pid=654616#p654616
http://www.lada-xray.net/showthread.php?p=318692#post318692
http://forum.bandingklub.cz/viewtopic.php?f=20&t=1263985
http://foro.goatenerife.es/viewtopic.php?f=29&t=53124
http://forums.indexrise.com/thread-726392.html
http://horsecity.ru/phpBB3/viewtopic.php?f=18&t=379636
http://forum.spolokmedikovke.sk/viewtopic.php?f=3&t=1287099
http://forum.spolokmedikovke.sk/viewtopic.php?f=18&t=1118135
http://telegramguide.org/thread-7514-1-1.html
http://forum.spolokmedikovke.sk/viewtopic.php?f=4&t=1248236
https://ufr-2020.front5.picapo.net/forums/viewtopic.php?pid=630704
https://www.ww2.site/forum/viewtopic.php?t=66904
https://talkingpoints.org/subx/showthread.php?tid=27312