Modern Defense Kotov Variation Pin in Chess

In the Modern Defense Kotov Variation, the “pin” motif appears when Black’s pieces line up so that a White piece cannot move without exposing something more valuable behind it. A defining feature is the pressure along a key diagonal or file that makes White’s central or queenside piece “stick” to its duty. The pin often supports Black’s plan to gain tempo, win a pawn, or improve piece placement by restricting White’s responses.