Blackmar Diemer Gambit Accepted Pietrowsky Defense Puzzle (Rated 907): Win with a Fork — Decisive Material Gain
This middlegame puzzle is a classic example of a tactical fork that creates a decisive material gain. White’s active knight jumps into the enemy camp, forcing a response and exposing key defenders around the king. The idea is not a slow positional squeeze, but a forcing sequence that wins material by exploiting loose pieces and a vulnerable back rank. Once the first tactical shot lands, the follow-up simplifies the position while preserving the advantage.