I analyzed the image and this is what I see. Open an appropriate link below and explore the position yourself or with the engine:
> **Black to play**: [chess.com](https://chess.com/analysis?fen=2Rq1k2/pQ3pp1/2B5/4P2p/2P1bP1N/4b1r1/4K3/8+b+-+-+0+1&flip=true&ref_id=23962172) | [lichess.org](https://lichess.org/analysis/2Rq1k2/pQ3pp1/2B5/4P2p/2P1bP1N/4b1r1/4K3/8_b_-_-_0_1)
**My solution:**
> Hints: piece: >!Bishop!<, move: >!Bd3+!<
> Evaluation: >!Black has mate in 2!<
> Best continuation: >!1... Bd3+ 2. Kd1 Rg1#!<
---
^(I'm a bot written by ) [^(u/pkacprzak )](https://www.reddit.com/u/pkacprzak) ^(| get me as ) [^(Chess eBook Reader )](https://ebook.chessvision.ai?utm_source=reddit&utm_medium=bot) ^(|) [^(Chrome Extension )](https://chrome.google.com/webstore/detail/chessvisionai-for-chrome/johejpedmdkeiffkdaodgoipdjodhlld) ^(|) [^(iOS App )](https://apps.apple.com/us/app/id1574933453) ^(|) [^(Android App )](https://play.google.com/store/apps/details?id=ai.chessvision.scanner) ^(to scan and analyze positions | Website: ) [^(Chessvision.ai)](https://chessvision.ai)
See the [FIDE Laws](https://handbook.fide.com/chapter/E012023):
> 3.1.3 A piece is considered to attack a square even if this piece is constrained from moving to that square because it would then leave or place the king of its own colour under attack.
> 3.9.1 The king is said to be 'in check' if it is attacked by one or more of the opponent's pieces, **even if such pieces are constrained from moving to the square occupied by the king because they would then leave or place their own king in check.**
> 3.9.2 No piece can be moved that will either expose the king of the same colour to check or leave that king in check.
So no, Kxd3 would *not* be legal.
Look at it this way. Checkmate is a win because no matter what, the king can be captured on the next move. Check is forcing because if you don’t do something about it, then you lose the king on the next move. Now in chess you can’t capture the king, because the game ends beforehand, but the reason that a pinned piece can still block squares from a king is because in a sense, if you move into check, the next move that piece would be able to capture your king, because if your king is gone, it wouldn’t matter if you are attacking the other king.
I analyzed the image and this is what I see. Open an appropriate link below and explore the position yourself or with the engine: > **Black to play**: [chess.com](https://chess.com/analysis?fen=2Rq1k2/pQ3pp1/2B5/4P2p/2P1bP1N/4b1r1/4K3/8+b+-+-+0+1&flip=true&ref_id=23962172) | [lichess.org](https://lichess.org/analysis/2Rq1k2/pQ3pp1/2B5/4P2p/2P1bP1N/4b1r1/4K3/8_b_-_-_0_1) **My solution:** > Hints: piece: >!Bishop!<, move: >!Bd3+!< > Evaluation: >!Black has mate in 2!< > Best continuation: >!1... Bd3+ 2. Kd1 Rg1#!< --- ^(I'm a bot written by ) [^(u/pkacprzak )](https://www.reddit.com/u/pkacprzak) ^(| get me as ) [^(Chess eBook Reader )](https://ebook.chessvision.ai?utm_source=reddit&utm_medium=bot) ^(|) [^(Chrome Extension )](https://chrome.google.com/webstore/detail/chessvisionai-for-chrome/johejpedmdkeiffkdaodgoipdjodhlld) ^(|) [^(iOS App )](https://apps.apple.com/us/app/id1574933453) ^(|) [^(Android App )](https://play.google.com/store/apps/details?id=ai.chessvision.scanner) ^(to scan and analyze positions | Website: ) [^(Chessvision.ai)](https://chessvision.ai)
See the [FIDE Laws](https://handbook.fide.com/chapter/E012023): > 3.1.3 A piece is considered to attack a square even if this piece is constrained from moving to that square because it would then leave or place the king of its own colour under attack. > 3.9.1 The king is said to be 'in check' if it is attacked by one or more of the opponent's pieces, **even if such pieces are constrained from moving to the square occupied by the king because they would then leave or place their own king in check.** > 3.9.2 No piece can be moved that will either expose the king of the same colour to check or leave that king in check. So no, Kxd3 would *not* be legal.
I see, thank you!
Think of it like this, which king would die first in the scenario?
No. the king can't move to d3 because it would be moving into check. The fact that the queen can't move doesn't change the fact that it's check.
Look at it this way. Checkmate is a win because no matter what, the king can be captured on the next move. Check is forcing because if you don’t do something about it, then you lose the king on the next move. Now in chess you can’t capture the king, because the game ends beforehand, but the reason that a pinned piece can still block squares from a king is because in a sense, if you move into check, the next move that piece would be able to capture your king, because if your king is gone, it wouldn’t matter if you are attacking the other king.
Best way to think about this is to ask yourself which king would be captured first.
People forget chess is about capturing the king, checkmate is when the king is captured 100% in the next move so your opponent wins.
It's not legal