Genrikh Kasparyan
Shakhmaty v SSSR 1934(version 1962)
Win
The 1962 version had the white bishop on g2, but in 1985 Kasparyan
placed it on f1.

White: Kg8, Nc4, Ne4, Bf1
Black: Ke8, Nb7, Ng4; pawn - b4

1.Bh3 Nh6+/i 2.Kg7 Nf7 3.Bc8 bNd8!/ii 4.Nf6+/iii Ke7 5.Nd5+ Ke8
6.cNb6/iv Ne5/v 7.Bd7+!/vi Nxd7 8.Nc7+ Ke7 9.Nc8 mate.
i) If Nh2 2.Bc8 Nd8 3.Nf6+ Ke7 4.Nd5+ Ke8 5.Nd6 mate.
ii) This is the best defence. [The main line continuation also meets fNd8.]
iii) After 4.Ne3? Black would save himself with 4...Nc6.
iv) 6.Bf5? fails to b3 7.cNb6 Nb7 8.Bd7+ Kd8 9.Kxf7 b2, drawing.
v) Defending against the mate threat.
vi) In spite of everything!
  Similar mates have been shown many times before in studies and
problems, for instance in an ancient Persian position, in the work of
Troitzky, and elsewhere. The present study differs in that the checkmate is
in mid-board and is the outcome of play that lasts nine moves. It can be
compared to 017a.
