user26669: Why cannot black rook on c5 in the bottom timeline capture the king on c5 in the top timeline? Why is the king not in check?


user26685: The rook on the center board in the present is blocking the check. Even if it goes to the past, a copy stays on the board where it moved from. The rook on the center board isn't checking the king because it already moved to the past.

26669: <p>Why cannot black rook on c5 in the bottom timeline capture the king on c5 in the top timeline? Why is the king not in check?</p>
<p><a href="https://i.stack.imgur.com/watWP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/watWP.png" alt="chess position" /></a></p>
 26685: <p>The rook on the center board in the present is blocking the check. Even if it goes to the past, a copy stays on the board where it moved from. The rook on the center board isn't checking the king because it already moved to the past.</p>
