Quote: "If you playing single deck, then this line looks suspicious:
"If two players hold the same four of a kind then
the fifth card in the hand would act as a kicker card.""
Nope, that line is accurate. It is possible for more than one player to get a four of a kind in a single hand.
Supposing you were playing against me and I held Pocket Aces and you held Pocket Kings.
If the board came out as "4 4 4 4 Q" then I would win because the best five card hand I could make would be "4 4 4 4 A" whereas you could only make "4 4 4 4 K".
TheSturgeon(playing me at chess) : I will use my powers of the horse and pwnzor you.