Semi Slav Defense Marshall Gambit Puzzle (Rated 1180): Win Material — Semi-Slav Tactical Refutation
This Semi-Slav middlegame features a sharp tactical refutation where active piece placement matters more than raw material count. White’s queen and bishop activity create pressure, but Black has a forcing counterattack against the exposed queen and central king. The key idea is to use a checking move to gain tempo, then exploit the fact that White’s queen is overextended and the bishop on c4 is vulnerable. In classical chess, these positions often turn on forcing moves that win material immediately.