Pass

Nobody has claimed this yet.

**Superbra jobbat!**

However, I cannot compile your application. I judge this to be a case of "but it works on my machine".

```rust
error[E0277]: `[[Option; 8]; 8]` is not an iterator
--> src\lib.rs:291:21
|
291 | for line in self.board {
| ^^^^^^^^^^ borrow the array with `&` or call `.iter()` on it to iterate over it
|
= help: the trait `Iterator` is not implemented for `[[Option; 8]; 8]`
= note: arrays are not iterators, but slices like the following are: `&[1, 2, 3]`
= note: required because of the requirements on the impl of `IntoIterator` for `[[Option; 8]; 8]`
= note: required by `into_iter`

error[E0277]: `[[Option; 8]; 8]` is not an iterator
--> src\lib.rs:291:21
|
291 | for line in self.board {
| ^^^^^^^^^^ borrow the array with `&` or call `.iter()` on it to iterate over it
|
= help: the trait `Iterator` is not implemented for `[[Option; 8]; 8]`
= note: arrays are not iterators, but slices like the following are: `&[1, 2, 3]`
= note: required because of the requirements on the impl of `IntoIterator` for `[[Option; 8]; 8]`
= note: required by `into_iter`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
error: could not compile `eliased-chess`

To learn more, run the command again with --verbose.
warning: build failed, waiting for other jobs to finish...
error: build failed
```

Tips: It is more efficient to search for check from the king's perspective, rather than calculating potential positions for every of the opponent's pieces.

I really liked that you wrote an AI script, despite of the out-commented code mess!

Start at src/lib.rs:291 and reproduce the reported compilation failure. Use the compiler diagnostic about iterating over self.board as the guide, then confirm that the project compiles successfully; no test file is mentioned.

Written by the indexing model from the issue text.