Seeing the meteoric rise in popularity of Duck Chess (full rules), I'd like to ask how to stalemate the fastest (from the starting position) in this variant, because the stalemated player wins here.
Duck chess rules (basic): The duck is a brick; you can't move through or onto it. Knights can jump over the duck. Each move, first move a normal piece, then move the duck to an empty square. There is no concept of "check". Capture the opponent's King to win. Stalemated player wins.
Note that because there is no check, it's much harder to find a stalemate than in normal chess.
For example, black is stalemated in the following position (black pawns go up):
You can paste the following Fen4 into the chess.com analysis board to recreate the position.
Y-0,1,0,1-1,1,1,1-1,1,1,1-0,0,0,0-0-{'pawnBaseRank':5,'wb':true,'dim':'8x8'}-
x,x,x,x,x,x,x,x,x,x,x,x,x,x/
x,x,x,x,x,x,x,x,x,x,x,x,x,x/
x,x,x,x,x,x,x,x,x,x,x,x,x,x/
x,x,x,8,x,x,x/
x,x,x,8,x,x,x/
x,x,x,8,x,x,x/
x,x,x,8,x,x,x/
x,x,x,8,x,x,x/
x,x,x,1,rK,6,x,x,x/
x,x,x,5,yP,yP,yP,x,x,x/
x,x,x,5,Θ,yB,yK,x,x,x/
x,x,x,x,x,x,x,x,x,x,x,x,x,x/
x,x,x,x,x,x,x,x,x,x,x,x,x,x/
x,x,x,x,x,x,x,x,x,x,x,x,x,x
You can also start a game or find a game to get a feel for the rules.