how will the possibility for conspiracies ever be eliminated in multi player games ?

i dont think its possible to eliminate it when you have more than 2 players. its part of the fun in the board game 'risk'

the question is what to do when a conspiracy is there

i wonder in the card game 'klaverjassen' (i think the english name is 'spades' ???) .. would it be easy to form a party against one other player ? ... you depend a lot on your 'partner' in that game ... of course your partner could play in favor of the other party, and then arrange something with them to let him win on another game .. or something like that .. how is this handled in real life tournaments ?

(hmm i think the same can be applied to the card game 'bridge')