White to play and checkmate in two moves

1.Qh8!
1...Kh3 2.Bf5#
1...Kh5 2.Bf5#
1...Kf4 2.Qd4#
1...Kh4 2.Bf5#

Date added: 9/3/2020

1. Bg2+
   1....d5 2. exd6 e.p. #

Date added: 10/3/2020

1.Kc1! ~ 2.Bb1#
1...Rxb4 2.axb4#
1...Re4 2.Nd4#
1...Rg6 2.Ng7#
1...e4 2.Ng5#
1...Rf5 2.exf3#
1...Bg5+ 2.Nf4#

Date added: 10/3/2020

1.Qd2! (2.Qd4#)
1...Nf4 2.Rxf4#
1...Bd3 2.Qxd3#
1...Nxf5 2.Nf2#
1...e5 2.Nc3#
1...Rb4 2.Rxb4#

Date added: 10/3/2020

1.Νg5! ~ 2.Qd3#
1...Νe4 2.Νf3#
1...Νc4 2.Νge6#
1...Bc4 2.Qf6#
1...Qe4 2.Bxa7#

Date added: 10/3/2020

1. Qe6! [2. Nxf5 [D] , Qxe5#]
1. ... Qxe6 2. Nxe6#
1. ... Rxa4 2. Rxd5, Qxd5#
1. ... Nd7/f7/c6/g6/f3 2. Nxf5, Qe3#
1. ... Nc4+ 2. dxc4#
1. ... Ng4 2. Nxf5#
1. ... Nxd3+ 2. Rxd3#
1. ... Nxf4 2. Nxf5, c3#
1. ... Ng3 2. Qxe5, c3#

Date added: 10/3/2020

1.Qd7! (2.Bxc3#)
1...Nb5/Nc6 2.Nc6#
1...Nf1/Ng4/Nd1/Nd5/Nxc4 2.d4#
1...Nf5 2.f4#
1...Qxd7 2.Nxd7#
1...Bb6/Ba5 2.Bd6#

Date added: 10/3/2020

1. Qb4! [2. Rd3#]
1... Kxe3 2. Rbe6#
1... Bxe3 2. Ne2#
1... Nxe3 2. Nb3#
1... Nc5 2. Qc3#
1... Qx5/e4/f3 2. Rd6#

Date added: 10/3/2020

1. c8=R!
   1. ..Ka6 2. Ra8#
   (if 1. c8 = Q ? stalemate !)
   

Date added: 14/3/2020

1. Qa5!
   1. ... Kxc1 2. Qe1#
   

Date added: 20/3/2020

1. Bb2!
   1. ... Ke5 2. Kd3#
   

Date added: 20/3/2020

1.Qe4! ~ 2.Q×g2#
1...Bxe4 2.0-0-0#
1...Bf3 2.Kd2#

Date added: 27/12/2020