I don't know if it's been done by someone else before or not but I'd like to share a variant called "Fuse Chess"!
As the name suggests, pieces can be fused and can be used as one would plan. It's just like chess but your own pieces can share any square and same pieces can double their scope of movement as well if possible.
The game starts with the normal initial position and pawns can move two squares just like in normal chess but pieces can pile over one another.
So, for instance if on move one white plays Kd2 , the knight and pawn become one piece and can be, if desired, moved as one, so on the next move that pawn and knight can go to b3.
Also, some pieces when doubled can double their movement scope! Like two knights can gallop two times( Two knights at a1 can go to c2,b2, d4 ,e3 and E1). Only exceptions are pawns! Pawns can never Fuse with one another.
Combination that possible:
Rook+Knight
Rook+ Bishop
Rook+Queen
Rook+King(yes, King can also be fused)
Rook + Pawn
Rook+knight+bishop
Everything can be fused except for pawns and two bishops because they are on different colours!
King has to be captured for win and stalemate results in win for the stalemated player!
Few tricky things:
If a fused piece is taken or forked you lose all your fused piece.
If a fused piece has a king, it can't go through checks.
You can always chose to move a single piece of a fused piece if you want, fused piece can be reversed and doesn't have to stay the same way for the whole game.
En passant is possible against a fused piece if it moves in front of your opponents pawn (the way en passant works) if you have a pawn in your fused piece.
King can never Fuse with a pawn.
Kings can never touch, so a fused piece with the King can never capture the King.
If the King is in check, it can Fuse with other piece as long as it doesn't move through check.
I think I've pretty explained everything about it. Ask me if there's something that doesn't make sense.
As the name suggests, pieces can be fused and can be used as one would plan. It's just like chess but your own pieces can share any square and same pieces can double their scope of movement as well if possible.
The game starts with the normal initial position and pawns can move two squares just like in normal chess but pieces can pile over one another.
So, for instance if on move one white plays Kd2 , the knight and pawn become one piece and can be, if desired, moved as one, so on the next move that pawn and knight can go to b3.
Also, some pieces when doubled can double their movement scope! Like two knights can gallop two times( Two knights at a1 can go to c2,b2, d4 ,e3 and E1). Only exceptions are pawns! Pawns can never Fuse with one another.
Combination that possible:
Rook+Knight
Rook+ Bishop
Rook+Queen
Rook+King(yes, King can also be fused)
Rook + Pawn
Rook+knight+bishop
Everything can be fused except for pawns and two bishops because they are on different colours!
King has to be captured for win and stalemate results in win for the stalemated player!
Few tricky things:
If a fused piece is taken or forked you lose all your fused piece.
If a fused piece has a king, it can't go through checks.
You can always chose to move a single piece of a fused piece if you want, fused piece can be reversed and doesn't have to stay the same way for the whole game.
En passant is possible against a fused piece if it moves in front of your opponents pawn (the way en passant works) if you have a pawn in your fused piece.
King can never Fuse with a pawn.
Kings can never touch, so a fused piece with the King can never capture the King.
If the King is in check, it can Fuse with other piece as long as it doesn't move through check.
I think I've pretty explained everything about it. Ask me if there's something that doesn't make sense.