(intermediate)
Deduce a piece’s movement by elimination
You can often deduce the location of a knight—or another major piece— by elimination. Suppose the opponent moves a knight. You know this because you could see it before, and now you can’t. Here is an example.
A knight has up to eight possible squares it can move to (or fewer if it is near the edge of the board). Some of those squares may already be occupied by your pieces, so the knight cannot be there. Other squares may be covered by your bishop or queen, so you know the knight didn’t move there either.
That may leave only two possible squares. If one of those is clearly occupied by an enemy pawn that you know is blocked, then only one square remains. That is where the knight must have gone.
This kind of deduction is common in Fog of War, but beginners often miss it because they don’t take the time to reason through the possibilities.
Thanks! I will try these tips