Learn How to Win Material: Long Opening Skewer
This puzzle comes from the Blackmar-Diemer Gambit, where active piece play can outweigh static material. White’s rook activity on the seventh rank creates a forcing tactical sequence against the black king and back rank. The key idea is a long skewer: a checking move forces the king to step aside, exposing a valuable piece behind it. In practical classical chess, this kind of tactical refutation often turns a slightly worse position into a decisive material win.