Very nice puzzle. Thanks. This is still a tricky win for white, black having the two pawn islands. I could easily draw against the engine, but I couldn't win. My endgame isn't good enough yet. Thanks again.
dr_doc_md is wrong in a lot of ways about his puzzle solution, the king can move to d6 on the third move and the queen can check the white king on the 4th move, more then that i didn't bother to check, the puzzle shown above is the only solution (i think).