▁method ▁is ▁varied ▁giving ▁A ' s ▁and ▁ 1 0 ▁the ▁same ▁value ( 1 0 ) ▁to ▁make ▁counting ▁easier . ▁Sometimes ▁a ▁minimum ▁b idd ing ▁value ▁is ▁established ▁( gener ally ▁ 1 6 0 ) ▁and ▁every ▁ 2 0 ▁points ▁the ▁number ▁of ▁cards ▁given ▁to ▁the ▁winning ▁team ▁is ▁increased ▁by ▁ 1 ▁until ▁the ▁maximum ▁give ▁out ▁reach ▁ 4 ▁cards . ▁ ▁However , ▁since ▁ 3 0 4 ▁is ▁not ▁a ▁reg ulated ▁game , ▁the ▁rules ▁and ▁reg ulations ▁var ies ▁mainly ▁according ▁to ▁common ▁uses ▁rather ▁than ▁a ▁set ▁of ▁established ▁rules . ▁The ▁variations ▁are ▁based ▁on ▁local ▁needs ▁to ▁either ▁comp licate ▁the ▁game ▁or ▁simplify ▁and ▁present ▁a ▁great ▁challenge ▁to ▁the ▁players ▁and ▁think ▁in ▁a ▁strateg ic ▁manner ▁to ▁make ▁the ▁game ▁more ▁interesting . ▁R ules ▁and ▁reg ulations ▁are ▁there ▁to ▁form ▁a ▁basis ▁to ▁build ▁a ▁foundation ▁and ▁players ▁are ▁free ▁to ▁find ▁new ▁methods ▁to ▁make ▁the ▁game ▁compet itive . ▁ ▁Windows / Windows ▁Phone ▁App ▁version ▁The ▁Windows / Windows ▁Phone ▁version ▁( Tr ump ▁ 3 0 4 ▁Single ▁Player ) ▁is ▁simplified ▁in ▁many ▁ways . ▁The ▁b idd ing ▁process ▁starts ▁only ▁after ▁all ▁ 8 ▁cards ▁are ▁received . ▁B idd ing ▁process ▁stops ▁as ▁soon ▁as ▁ 3 ▁players ▁pass . ▁ ▁Only ▁the ▁tr ump ▁suit ▁is ▁shown ▁and ▁the ▁card ▁used ▁to ▁set ▁tr ump ▁is ▁not ▁shown . ▁The ▁player ▁can ▁choose