The safest bets in roulette are outside bets (red/black, odd/even, high/low) due to their nearly 50% chance of winning. The amount of money you can make playing blackjack depends on how well you know the rules.
https://debate.socialism.nl/forum/showthread.php?tid=161014
https://forumlylife.com/showthread.php?tid=19841
http://60.250.226.63/ipkb/viewtopic.php?f=41&t=1935236
https://one-diz.3dn.ru/forum/12-11773-1#18028
http://horsecity.ru/phpBB3/viewtopic.php?f=13&t=284206
https://debate.socialism.nl/forum/showthread.php?tid=188311
https://www.ww2.site/forum/viewtopic.php?t=122855
https://www.ww2.site/forum/viewtopic.php?t=69229
http://www.prepody.ru/topic40264.html
https://debate.socialism.nl/forum/showthread.php?tid=196607
http://kronmark.eu/index.php/forum/more-ab...-jackpot-online
https://www.ww2.site/forum/viewtopic.php?t=85706
http://www.gztongcheng.top/forum.php?mod=v...4698&extra=
http://www.prepody.ru/topic40454.html
https://www.seono1.co.th/forum/index.php/to...79.new.html#new
http://horsecity.ru/phpBB3/viewtopic.php?f=21&t=170956