Four Knights Game Scotch Variation Accepted Pin in Chess

In the Four Knights Game Scotch Variation Accepted, the “accepted pin” refers to a tactical motif where a piece is pinned to a more valuable target after the Scotch exchange sequence. A defining feature is that Black’s acceptance of the Scotch creates a line where White can pin a knight (often on c6) or a related defender to the king or a key piece, limiting its ability to move. The result is a temporary restriction that can win tempo, recover material, or improve piece placement.