Promotion to a different color variant

I heard that at one time it the written rules of chess did not explicitly state that a pawn had to promote to a piece of the same color, and so someone came up with this puzzle

In which an offbeat interpretation of the rules at the time would have implied that white had a mate in 1 by promotion to a black knight.

I was thinking based on this a variant that could be added would be one, in which, it would be possible to promote a pawn to a piece of any color.

ok thats actually cool

Sounds like a cool concept; promotion to walls currently exists, so a variant based off of smothered mate is technically already possible.

Firstly, this could also be a way to prevent stalemate; promoting to another side’s pieces so that they have something to move.

Secondly, I think that Teams 4 Player Chess with this would also be a fun idea, allowing for expanded strategy.

I like it

What would we call this?
Any Color Promotion?

Suppose one could promote to dead pieces too?

@spacebar, yes I think Any Color Promotion would be a good name.

Maybe there could be two submodes, one in which you can promote to dead pieces, and one in which you can't, and for teams a mode in which you must promote to a color of your team and one in which you can promote to an enemy color.

I think it could just be another option next to N-check and promotion rank. If you select "Any Color Promotion" there would be some boxes and you could tick which colors you can promote to.

I love those ideas, it allows more so much more creativity. Making simple video-games in chess would be awesome!

I suggested #2 here. All of these seem to me to be fairly simple yet potentially very strategically interesting.

but why would you want to promote to a dead piece? 

Having the option makes stalemate variants more viable (variants where stalemate is the goal)