Black moves first, then blue, then red. The move order is the same regardless of whether any of the players are in check.
Normal chess rules regarding piece movement, capture and checkmate apply.
Black pawns move upwards, blue and red pawns move downwards.
If one player gets checkmated when the other two players are still in play, the checkmated player is out of the game but their pieces remain on board. These pieces cannot move or make captures, but they can still be captured by the other players' pieces. A checkmated king can be captured like any other piece.
All players play their best moves, so no collaboration or softplay.
Black to move and checkmate both opponents in the smallest number of moves possible.
1 -> d6- d7 - so this move will easily mate the red king now he is
out of the game and so his pieces. because of the blue knight blocking
g6... now blue is having turn so his best move will be...I am not
getting any good move in his end I assume that he is a good chess
player and he already knew that my next move will be e4 - d6 to mate
him. so his best move to defend is a5-b6 he can sacrifice his queen
to safe the check-mate of the next move. I will give a check to him with my knight
2 -> e4-c5 he has no choice but to move his king to a7 now I will move my
3 -> knight to e6 so he knows that I am coming
after his bishop with my knight and queen to he will bring his king
back to b7 to support. now i will take down his