but I wouldn't move the rooks there if the enemy king was there.f
Winning on premoves

but I wouldn't move the rooks there if the enemy king was there.f
My understanding was that "premoves" are a set of consecutive moves that you list that you will play irrespective of where your opponent decides to play their next set of moves.
but I wouldn't move the rooks there if the enemy king was there.f
My understanding was that "premoves" are a set of consecutive moves that you list that you will play irrespective of where your opponent decides to play their next set of moves.
Not a set of consecutive moves, only one move at a time
I think we all dont understand what the other part mean, I mean that you can't premove many moves ahead because you can't guess all your opponent's moves. If you can't add many lines the premove line ends at the first wrong guessed opponent move.

Shoopi, unfortunately it's you who doesn't understand. Here on chess.com, if you enter a premove and then "correct it" by bringing the piece back to the original square, you have just entered two consecutive premoves. It's this little trick that allows players to make 100s of moves in a 1-minute game. It also makes seeing any draw offer impossible.
That needs to be addressed by the site.
Yes, that's true. But this is not what I meant.
If I understood the question of the OP correctly, he was asking whether it was possible to mate with KQ vs. K using premoves one at a time. That is - if it's your opponent turn to move, you make one premove. Then, after you both move and it's your opponent turn to move again, you make another premove. And you progress like this over and over again untill you premove a mate.

I just discovered that on this site,
a) you can't undo a premove before your opponent makes his move and worse
b) you can program several premoves in advance.
In my opinion, those are both bugs that need to be fixed.
(a) Right-clicking cancels premoves.
(b) Is possible but usually leads to the premover losing material and/or the game, therefore it seems as much a weapon as a bug.

Here's an example of what happens when a player overuses premoves.
Can't find the game, but I was playing a guy here the other day, and it went something like the diagram below. He picked up on the fact that I usually premove the first couple moves of the game, and he kamikazed me, winning my Queen. This only works against guys who premove too much (like me in this case).
When your opponent stacks premoves, it can be a weapon for you if you know how to exploit it.

This Q+K vs K mate on the border is even possible to do with an entirely forced and unique conditional move line - that can also be used as a scheme for entering all the remaining premoves beginning with white's second move Qe7:

This Q+K vs K mate on the border is even possible to do with an entirely forced and unique conditional move line - that can also be used as a scheme for entering all the remaining premoves beginning with white's second move Qe7:
Can't that checkmate be done in 8 moves as long as the white king follows the black king?
I think you can undo a premove by clicking somewhere on the right side of the board. (Although I am not sure why this option should be available, shouldn't you be committed to the premove once you made it.)