You can only exchange the cards when you have a hard 15-18 hand total.
http://forum3.bandingklub.cz/viewtopic.p...&t=1401782
http://horsecity.ru/phpBB3/viewtopic.php?f=18&t=208533
http://www.prepody.ru/topic57857.html
http://47.88.101.141/forum.php?mod=viewt...086&extra=
https://mmomakemoneyonline.net/threads/k...ye.504075/
https://debate.socialism.nl/forum/showth...tid=179317
https://www.ww2.site/forum/viewtopic.php...70#p173070
http://horsecity.ru/phpBB3/viewtopic.php?f=31&t=212164
https://neoternia.net/viewtopic.php?t=358423
https://www.ww2.site/forum/viewtopic.php...80#p225880
http://47.88.101.141/forum.php?mod=viewt...016&extra=
http://forum3.bandingklub.cz/viewtopic.p...&t=1401782
http://horsecity.ru/phpBB3/viewtopic.php?f=18&t=208533
http://www.prepody.ru/topic57857.html
http://47.88.101.141/forum.php?mod=viewt...086&extra=
https://mmomakemoneyonline.net/threads/k...ye.504075/
https://debate.socialism.nl/forum/showth...tid=179317
https://www.ww2.site/forum/viewtopic.php...70#p173070
http://horsecity.ru/phpBB3/viewtopic.php?f=31&t=212164
https://neoternia.net/viewtopic.php?t=358423
https://www.ww2.site/forum/viewtopic.php...80#p225880
http://47.88.101.141/forum.php?mod=viewt...016&extra=
