This is the position you are talking about, you have 4 legal moves in this position as white.
Kb1, Kxc3, Kd3 or Qxd4. so the queen wasn't forced to capture the knight as you couldve move the king. I'm not quite sure what you are talking about beyond this?
Forced Queen to capture by check

Sorry, I wrote out of memory when I was a little crazy and saw this surprising move.
Still the question is valid: Is there (probably by a Knight's move) position that a Queen is forced to capture the attacking horse, then being captured by a pawn (or King). I don't know why Stockfish chose to capture the horse. Its obviously a very bad move.
Its been a while.
Sorry, I wrote out of memory when I was a little crazy and saw this surprising move.
Still the question is valid: Is there (probably by a Knight's move) position that a Queen is forced to capture the attacking horse, then being captured by a pawn (or King). I don't know why Stockfish chose to capture the horse. Its obviously a very bad move.
Its been a while.
You mean something like this? (In this case it's by a bishop, but you can replace the bishop by a pawn and then add a White rook on h1)
This is a simplified version of my casual game several years back against a local player from my country.
In that game, I was Black. My opponent trapped my queen within the first 15 moves (I think) in the middle of the board somehow and I was practically dead lost but did not feel like resigning for that game, so I settled for a bishop and a knight as compensation.
At a later stage in the same game, something like the situation above happened. After the forced queen loss, I emerged a piece up altogether and my opponent lost on time very shortly after (he had little time left at this point).
Sorry, I wrote out of memory when I was a little crazy and saw this surprising move.
Still the question is valid: Is there (probably by a Knight's move) position that a Queen is forced to capture the attacking horse, then being captured by a pawn (or King). I don't know why Stockfish chose to capture the horse. Its obviously a very bad move.
Its been a while.
It depends on what Stockfish feels. To you, it's a bad move because it loses the queen.
To Stockfish, however, in terms of evaluation numbers, a loss of queen for a knight can more favourable to a loss of a complete piece. In the position by chess_player_lol, Qxd4 Bxd4 Nxe6 gives White an avenue to fight further (but he still has problems to settle like poor piece development).
Stockfish largely relies on evaluation numbers and in some cases you can expect random "hara-kiri" of the queen just to prolong the game further (and this is not what humans usually do).
Well, in your game the white queen is forced to capture the horse, yes. But my question, concerning your picture above, would be with an added black pawn on c5, and the pawn capturing the white queen.
Also, its not forced by check, only by not willing to lose.
To reframe the question: Is there or are there legal position(s) where a queen is forced to trade by check, to a lower value piece, and does this have a name?
Well, in your game the white queen is forced to capture the horse, yes. But my question, concerning your picture above, would be with an added black pawn on c5, and the pawn capturing the white queen.
I failed to notice the link you provided.
I have now looked at the video, which basically contains the screenshot provided by chess_player_lol as above (which I had seen earlier).
The queen capture is not entirely forced - White has options such as Kb1, Kxc3, Kd3 and what I earlier noted - Qxd4.
Stockfish prefers to sacrifice the queen for a knight and a bishop in this case. Wait, it actually didn't capture the bishop after that.
Ok, I just realised, after the weird Ng5 at time 0:29, that the Stockfish program is a Level 1 program. That explains it.
Well, in your game the white queen is forced to capture the horse, yes. But my question, concerning your picture above, would be with an added black pawn on c5, and the pawn capturing the white queen.
Also, its not forced by check, only by not willing to lose.
In that situation, Qxd4 is something I can consider (by sacrificing the queen, I eliminate some of the active pieces available for Black) whilst negating the check and capturing two minor pieces, but ultimately I will analyse the other possibilities (for example, will Kxc3 Qa5+ lead to disaster for White etc) before making my decision.
Well, in your game the white queen is forced to capture the horse, yes. But my question, concerning your picture above, would be with an added black pawn on c5, and the pawn capturing the white queen.
Also, its not forced by check, only by not willing to lose.
To reframe the question: Is there or are there legal position(s) where a queen is forced to trade by check, to a lower value piece, and does this have a name?
Good question. There is no particular name for this type of checkmate (including the example I gave above), but in Chess.com's analysis (not sure if it's still the case as of today), the queen capture can be counted as a "forced capture".
Without the queen, the checkmate pattern will depend on the position. In my position above, I don't think there is a name to the checkmate if the queen is absent, but the closest is probably "suffocation checkmate".

Sorry, I wrote out of memory when I was a little crazy and saw this surprising move.
Still the question is valid: Is there (probably by a Knight's move) position that a Queen is forced to capture the attacking horse, then being captured by a pawn (or King). I don't know why Stockfish chose to capture the horse. Its obviously a very bad move.
Its been a while.
i can recall a tactic from the englund gambit that is like that
usually you can force this by a smothered mate (the king's escape squares are covered by is own pieces
Hello all,
I'm pretty new to the website, and about half a year ago I decided to play against level 1 Stockfish online as Black. The game can be seen here on youtube sped up to a 1:11 minute video: https://www.youtube.com/watch?v=CEB_8SCoQ_A
Pay attention to the move at 0:35, where the black horse checks the white king, and forces the white queen to capture the horse, which was in fact guarded by a pawn.
I am not versed in chess history but a quick google search didn't find me much about this. Besides I'm not even a good player. But is there a term for this kind of move (forcing a queen to capture by check, the capturing queen being captured by a lower ranked piece?).
Also, looking into it, the best move of this kind would be a king force capture a queen, that would be the ultimate chess move in my understanding. Did this ever happen?
Have a nice Christmas time,
Psi.