Antifreeze 23

Checkmate in Moves

A lot of protagonists populate the 64 fields, which are definitely not only of interest to netschach. Many players are involved - players who act to irritate the problem solver are in the game. They are supposed to obscure the way to overthrow the black king. An antifreeze is needed, resilience is required, only the reduction to the essentials can lead you to success. Concentrate on the important things and try to lead your characters to the goal. Good luck - you have two moves!
Manual
Move for White with the best possible moves and achieve checkmate before the countdown expires. Black responds automatically and tries to prevent the checkmate.
Chesspuzzle: 186

Solution moves

Chess composer
Halvar Hermanson
Problemisten, 1977
Statistics
Fails: 7 // Checkmate: 3