Point and click doesn't always work. Sometimes I miss the square or my mouse cord snags on something
Mouse slip


I noticed that sometimes on chess.com when I'm dragging my piece, it just drops before the destination square. It's not a mouse slip because I'm still holding the mouse button down and my mouse is a pretty decent gaming mouse (plus it's never had any issues in other programs).
I've not looked into it much, but I suspect that it has something to do with the enormous CPU load chess.com puts on my system. I now mostly play on another site that works much better (very low CPU use and no more wrong mouse inputs).
Even just typing this reply, my CPU use is at 20% on IE (only chess.com) on a decent desktop CPU running at 3GHz. There maybe something wrong with chess.com's programming.

I noticed that sometimes on chess.com when I'm dragging my piece, it just drops before the destination square. It's not a mouse slip because I'm still holding the mouse button down and my mouse is a pretty decent gaming mouse (plus it's never had any issues in other programs).
I've not looked into it much, but I suspect that it has something to do with the enormous CPU load chess.com puts on my system. I now mostly play on another site that works much better (very low CPU use and no more wrong mouse inputs).
Even just typing this reply, my CPU use is at 20% on IE (only chess.com) on a decent desktop CPU running at 3GHz. There maybe something wrong with chess.com's programming.
I run at 3.4 GHz & with Chess.com on Firefox, 4 other open tabs, two other programs open, & don't get above 4% CPU usage. If I leave FF open for long, even without Chess.com open, eventually it begins using more CPU & RAM. Have no idea why - but if I close & reopen it, it goes back to low usage.
Your problem must be on your end, probably IE.
Countless times I've had a piece drop before removing my finger from the mouse. Frustrating to say the least!
I've come to realize that this problem has everything to do with chess.com and not my mouse, computer or internet connection. Bottom line is that chess.com, albeit one of the better online chess sites, is not a 5 star site. Still looking to find one that is.

I noticed that sometimes on chess.com when I'm dragging my piece, it just drops before the destination square. It's not a mouse slip because I'm still holding the mouse button down and my mouse is a pretty decent gaming mouse (plus it's never had any issues in other programs).
I've not looked into it much, but I suspect that it has something to do with the enormous CPU load chess.com puts on my system. I now mostly play on another site that works much better (very low CPU use and no more wrong mouse inputs).
Even just typing this reply, my CPU use is at 20% on IE (only chess.com) on a decent desktop CPU running at 3GHz. There maybe something wrong with chess.com's programming.
I run at 3.4 GHz & with Chess.com on Firefox, 4 other open tabs, two other programs open, & don't get above 4% CPU usage. If I leave FF open for long, even without Chess.com open, eventually it begins using more CPU & RAM. Have no idea why - but if I close & reopen it, it goes back to low usage.
Your problem must be on your end, probably IE.
I also use Firefox; same problem. It is the terrible ads that chess.com uses, which sucks up not only tons of bandwidth but also CPU. It's gotten a little better these days, but still not great. I think if chess.com switches to static ads, the usability will improve.

I made an accidental move with point and click once. why is it any less likely to result in a mouse slip than actually moving a piece? I find it a lot slower than dragging pieces too. Besides, mouse slips probably account for less than 0.01% of a player's moves unless they are really incompetent.

Why? Is the Queen heavier than other pieces or she drags her feet so you accidentally let go too soon?!

I once had to move a pawn that was useless to move because my hand brushed it before I touched the pawn next to it, which was the one I wanted to move.

I noticed that sometimes on chess.com when I'm dragging my piece, it just drops before the destination square. It's not a mouse slip because I'm still holding the mouse button down and my mouse is a pretty decent gaming mouse (plus it's never had any issues in other programs).
I've not looked into it much, but I suspect that it has something to do with the enormous CPU load chess.com puts on my system. I now mostly play on another site that works much better (very low CPU use and no more wrong mouse inputs).
Even just typing this reply, my CPU use is at 20% on IE (only chess.com) on a decent desktop CPU running at 3GHz. There maybe something wrong with chess.com's programming.
I think thats something to do with your config, it runs fine for me on a cheap chromebook (analyzing is pretty weak though, I think that is client not server side)

Countless times I've had a piece drop before removing my finger from the mouse. Frustrating to say the least!
I've come to realize that this problem has everything to do with chess.com and not my mouse, computer or internet connection. Bottom line is that chess.com, albeit one of the better online chess sites, is not a 5 star site. Still looking to find one that is.
I haven't played many live games here, but I've also had the experience of a piece placing itself on a square while I'm still dragging. I think point and click is better, though it takes a little more time.

It's impossible to do an 'almost premove, but not quite' with point and click, but then you only really need to do that in Bullet or the end of Blitz games I suppose.
The queen is the easiest piece to mouse slip because it has a large range of movement. If you try to move a knight one square in any direction it won't move because the move is illegal. I mouse slipped my queen in a completely winning position the other day (up two pawns and in the process of capturing a rook when I moved it one square over) and my opponent graciously took a draw.

Sure, compared to a Knight you mouse-slip more with a Queen, but Knights are the least likely to mouse-slip. You can mouse-slip a King, Rook or Bishop plenty too.
I have noticed that chess commentators occasionally mention that a GM has mouse slipped. This has happened to me before but that was until I found out that you can point and click! Don't the GMs know that?