chess.com daily puzzle 20220104, Grischukmate, white to move, Step 3

 chess.com daily puzzle 20220104, Grischukmate, white to move, Step 3

#dailypuzzle #chesstactics #chesssteps

Difficulty level: Step 3

Key concepts: blocking, smothering mate

My analysis: https://www.youtube.com/c/AmateursView