Learn How to Mate in 2: Triangle Mate
This chess endgame puzzle is a classic forcing finish: your queen and rook coordinate to trap the enemy king with no escape squares. The key idea is not material gain, but king geometry. In positions like this, a checking move can drive the king onto a vulnerable square where the second check lands as a mate. That is why pattern recognition matters so much in classical chess and bullet chess alike: the best move is often the one that creates a mating net, not the one that wins the most material.