Learn How to Win with a Queen Sac: Defender Endgame
This chess endgame puzzle shows a classic defender-removal idea: one piece is overloaded, and a forcing capture opens the way for a decisive follow-up. In practical classical chess, these positions often look balanced until you notice that the defender of a key square or file is also the only piece protecting the king. Once that defender is eliminated, the remaining forces can invade with tempo and convert the advantage quickly.