Card suits are irrelevant and have no effect on rankings.
http://www.lada-xray.net/showthread.php?p=273815#post273815
https://muchroom.ng/index.php?topic=41107.new#new
https://www.ww2.site/forum/viewtopic.php?t=67452
https://my-mobile.eu/viewtopic.php?t=527
https://talkingpoints.org/subx/showthread.php?tid=91102
http://eporady.starostwo.ketrzyn.pl/viewtopic.php?f=7&t=61987
http://eporady.starostwo.ketrzyn.pl/viewtopic.php?f=5&t=91328
https://muchroom.ng/index.php?topic=66885.new#new
https://my-mobile.eu/viewtopic.php?t=2115
http://mirosovak.edoras.cz/viewtopic.php?f=3&t=362590
https://muchroom.ng/index.php?topic=18759.new#new
https://wietmarkt.nl/viewtopic.php?t=654434
http://biopharmamash.com/viewtopic.php?t=1793014
http://1.s.2.free.fr/viewtopic.php?f=17&t=572067
http://vortex.mx.free.fr/forum/viewtopic.php?f=38&t=23227&sid=55863b3ba3ac28ef8955bac16bc86e35