how can I improve my checkmate?
https://www.chess.com/lessons/finding-checkmate
There are many lessons available on checkmating.
The endgame drills are helpful too. https://www.chess.com/endgames/checkmates/two-rooks-mate/challenge
https://www.chess.com/lessons/finding-checkmate
There are many lessons available on checkmating.
The endgame drills are helpful too. https://www.chess.com/endgames/checkmates/two-rooks-mate/challenge