for the previous one: Not possible in 2 moves. Because. If White Queen moves (cannot check) other than e4 and g6, which makes no sense, because Qe4 will follow with Bxe4 and Qf6 will follow with d2, then Black Pawn will xc2+ making mate impossible in 2 moves, or Pawn can still, in any case when no check, d2 and threaten promotion to queen except, Rxe7 threatening Rc7++, then still no check, Black will definitely Rxf5, by which it will control the the entire diagonal with bishop on dark square. Any other cheks that follow, cannot mate or stalemate. unless, Bxd5 then Black will Bxd5, still can't mate in 2 there are two pieces that can check the king in the first move. Rc6 or Rb5. But both results in loss of Rook, and the next move of white can't mate. also, if Rc6, then Kb4 will protect it from mate in next move. White pawn can b4 and check. But with Kc4, Black can't be mated in the next move. if Rd6, then either Kxd6 or d2 prevent mate in 2. if white plays xd3, then Nxd3, can't mate in next move. the bishop in dark square is prety much doing nothing. the pawn in e3 can go to e4, then Bxe4 and still can't mate in next move. White Knight doesn't have any save square to movet to. so, i think mate in 2 is exaggerate. anyone with any other thoughts