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it's called en passant and happens when you move your pawn two squares to avoid it from being captured by another pawn.they can only do this the exact move after they move there.

it's called a time scramble and happends when your low on time but I don't remember how to gain it and you can't stop it.

i can't get vip referrer and bring a friend achievements

Its not a time scramble and it doesn't happen only when you're low on time.Its called increment

In past few games I'd press some piece and a different one moves there like in my recent game I pressed to take with the bishop and it took with the queen then I lost it happened multiple times

This is not the place to report a bug.

If you want to report a bug, use the bug report tool on the Support page.

this is not a bug, but rather a calculation based from your time compared to the target

I was trying to report this issue in the bug report chat bot, but instead it's just saying "Oh you're talking about puzzles????!?!?!?!!! WHAT A GREAT WAY TO IMPROVE!!!" Sooo that's not helping

Pretty much the issue I'm facing right now is that I have a really high puzzle rating (I was 4000 but reset my rating to see if it would resolve this bug, it did not) and what's happening is that I'm just... Not getting puzzles rated past 1600, even though I'm currently 3200. I reset the rating to 800 on saturday and have done 930 puzzles since then, and I've only received 2 puzzles rated above 1600, both in the 2200 group, which is still quite low for 3200. I don't quite understand this issue but even raising the difficulty setting doesn't do anything. This bug allows for a lot of rating farming for the lucky (or, unlucky) people that have it and I wanted to know if anyone has a way to fix it as it's quite unfair and is unbalancing a lot. One more note, this is also making lower rated people go down even more, as even at 800 I was still playing 1300-1600 rated puzzles.

Here's a screenshot with a couple examples of what's going on, the bottom puzzle there was actually proper for some reason.

So, here's an interesting bug.

In the review tool, when pressing the "show follow up" button, the AI skipped black's move. After White played Knight C3, the coach showed white moving rook to B1, without black moving any pieces.

It's kinda funny

i found a bug on game review, "probably" someone review my games and it was normal before (i can use it and see accuracy, brilliant etc) but after i reopen it I can't access it anymore, it says that I've used my free game review. someone already review the game tho (meaning the game review is "supposed" to be permanent)

That's not a bug. You can only look at reviews of your games that you have completed a review on, or you have to use your daily review. Previous behavior was unintentional.

Do you have a link to the game?

The site is in the process of updating the puzzle system. All puzzles have been re-rated on the backend and the puzzle selection algorithm is using the updated ratings. However, the UI is still showing the old ones.

There's work being done to show the updated ratings in the UI

As part of using the new ratings, the site also added a puzzle Difficulty setting. You might try changing to Hard or Extra Hard which may improve selection somewhat.

Until all changes are complete, the puzzle selection may look similar to that.

I was playing a bullet game and my opponent ran out of time but his/her time increased and i lost that game. if you see my game, it will look normal but his/her clock it was 0:00.

Are you on the iOS app? You opponent had time at the end

https://support.chess.com/article/423-why-did-the-clock-times-suddenly-change-the-clocks-seem-broken

I was checking other mates but instead of showing Qc8# by white, it showed its previous move Kg8 by black.

The move Qc8 is highlighted in the board.