Contador Peças FEN Xadrez

A FEN turns up in an engine report, in a puzzle link or pasted into a chess group chat, and before setting the position up you want the basics: are the queens off? How many pawns does each side still have? Is this a rook endgame already? Paste the line and the page returns a count broken down by piece type, with each side's total next to it, no board required.

Only the first FEN field is read, the piece placement, which sidesteps a classic mistake: the b marking black to move, right after the space, would otherwise be counted as a bishop. Inside that field ranks run from the eighth down to the first, digits stand for runs of empty squares, uppercase is white and lowercase is black. The knight is N rather than K, since king already claimed that letter.

The page counts characters, it does not validate the position: it never checks for eight ranks, for digits adding up to eight squares per rank, or for exactly one king per side. Text that is not a FEN returns all zeros instead of an error, so a count of zero pieces means you pasted the wrong thing or left a stray space at the front. It does not total material either. Nothing leaves your browser as you type.