Collusing is unfair obviously we can take of opponents pieces position like not giving check because the next player can deliver mate so I wait until king is in mating net so I can deliver the final move.
Capture opponents piece when he is in check cause he cant take back.
If they want to play team game they should go for that instead of ruining the eco system of other players.
About 4 players chess, which I started playing a few weeks ago.
Some people complain about others teaming up in Free-for-all when it is not the case (anyways, there is litteraly a separate Team mode for 4 player chess). Sometimes, cheaters are obvious (like people using chat to communicate). It is indicated in the rules that it is okay to use pins or your opponents pieces' positions for your advantage as long as you don't collude with them.
For example, I used in a game one opponent 1's pin of a pawn of opponent 2 to position my piece where the pined pawn can capture it, it is not considered teaming up because I don't collude with anyone, right? And I pointed out later in chat (after all opponents stopped hanging their pieces ((because the rules say you can't say anything in comments that can help any player in the present position, it is considered collusion)) ) how I tried to use that pin, but that neither opponent 1 or opponent 2 noticed the pin and hung their pieces in a extraordinary fashion for several moves as the result of the pawn capturing my piece. And I guess some people may be worried too much about people teaming up and get suspicious.
And maybe also I talk too much. How clear is the line between using your opponents pieces for your advantage without teaming up and collusion in that gamemode?
Any clarifications are greatly appreciated.