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Shortest Proof Games ending in a Knight Mate

For (almost) each square of the board, which is the shortest proof game without duals, in which a Knight mates? Some additional conditions may be considered, e.g. double check mate, discovered check mate, etc.

Many thanks to Hirokaz Onoda, who posted the current record table on the Retro mailing list on Oct. 28th, 2007.

Overview

Single Checkmates, by the Knight itself,
to the 8th - 7th - 6th - 5th -4th - 3rd - 2nd - 1st rank

Double Checkmates, by the Knight itself,
to the 8th - 7th - 6th - 5th -4th - 3rd - 2nd - 1st rank

Discovered Checkmates

I. Single Checkmates, by Knight itself

Knight to the 8th rank

a 1.Nc3 d5 2.Nxd5 c6 3.Nb6 Qxd2 4.Bxd2 Kd8 5.Be3 Kc7 6.Nxa8# Hirokaz Onoda,  2007
b 1.a4 Nf6 2.Ra3 Ne4 3.Rd3 Nxd2 4.Rxd7 Qxd7 5.e3 Qxa4 6.Ke2 c6 7.Kd3 Bf5 8.Kc3 Nxb1# Hirokaz Onoda, 2007
c 1.a4 e5 2.a5 Ke7 3.a6 Kd6 4.axb7 Be7 5.bxa8N Ba6 6.Nb6 Bxe2 7.Qxe2 Qf8 8.Qc4 Bd8 9.Nc8# Hirokaz Onoda, 2007
d 1.Nf3 e5 2.Nxe5 Bb4 3.Nxf7 Bxd2 4.Qxd2 Ke7 5.Qg5 Ke6 6.Bf4 h6 7.Nxd8# Hirokaz Onoda, 2007
e 1.d4 g6 2.d5 Bh6 3.d6 Kf8 4.dxe7 Kg7 5.exd8N d5 6.Nxb7 Nd7 7.Nd6 Nf8 8.Ne8# Nicolas Dupont, 2006
  Fewer captures: 1.d4 g6 2.d5 Bh6 3.d6 Kf8 4.dxc7 Kg7 5.cxd8N Kf6 6.Ne6 Bf8 7.Nc7 Kg7 8.Ne8# Hirokaz Onoda, 2007
f 1.e4 f6 2.e5 Kf7 3.e6 Kg6 4.exd7 Qe8 5.d8N h6 6.Ne6 Kh7 7.Bd3 Qg6 8.Nxf8# Hirokaz Onoda, 2007
g 1.f4 e6 2.f5 Qe7 3.f6 Qd6 4.fxg7 Nf6 5.g8N Bg7 6.Nh6 Ke7 7.d3 Rd8 8.Kd2 Bf8 9.Kc3 Ne8 10.Ng8# Andrey Frolkin, 2006
h 1.f3 Nc6 2.Kf2 Nd4 3.Qe1 Nf5 4.d4 Ng3 5.Be3 Nxh1# Francois Labelle, 2007

Knight to the 7th rank

a 1.Nc3 d5 2.Nxd5 Be6 3.Nxe7 Kd7 4.Nc6 Kc8 5.c3 Nd7 6.Qc2 Rb8 7.Nxa7# Hirokaz Onoda, 2007
b 1.c4 d5 2.c5 Qd7 3.c6 Kd8 4.cxb7 Qe8 5.bxc8N Nd7 6.Nd6 Rc8 7.Nb7# Hirokaz Onoda, 2007
c 1.d4 e6 2.Bg5 Ba3 3.Nxa3 Qe7 4.Nb5 Qf8 5.Nxc7# Francois Labelle, 2004
  with promotion: 1.a4 c5 2.a5 Qb6 3.axb6 Nc6 4.bxa7 Rb8 5.a8=N Nd8 6.Nc7# Francois Labelle, 2007
d 1.c4 g6 2.c5 Bg7 3.c6 Kf8 4.cxd7 Nc6 5.dxc8N Qd7 6.Nb6 Re8 7.Nxd7# Hirokaz Onoda, 2007
e 1.Nc3 e6 2.Nd5 Qh4 3.c3 Be7 4.Qc2 Bg5 5.Qxh7 Nf6 6.Qh5 O-O 7.Ne7# Hirokaz Onoda, 2007
f 1.d3 c5 2.Bh6 Nxh6 3.g4 Nxg4 4.Qc1 Qa5+ 5.Kd1 Nxf2# Francois Labelle, 2007
  with promotion: 1.f4 c5 2.f5 Qc7 3.f6 Kd8 4.fxg7 Nf6 5.gxh8=N Ne8 6.Nxf7# Francois Labelle, 2007
g 1.g4 Nc6 2.Bg2 Ne5 3.Bc6 Nxg4 4.Nf3 Ne3 5.Rf1 Ng2# Francois Labelle, 2007
h 1.Nc3 e5 2.Ne4 Ke7 3.Ng5 Kf6 4.e3 Ne7 5.Qg4 Rg8 6.Nxh7# Francois Labelle, 2007

Knight to the 6th rank

a    
b 1.Nc3 d5 2.Nxd5 Be6 3.c3 Kd7 4.Qa4+ Kc8 5.Qc6 a5 6.Nb6# Francois Labelle, 2007
c 1.Nc3 d5 2.Nxd5 b5 3.Nxe7 Qxd2+ 4.Qxd2 Nd7 5.Qe3 Kd8 6.Nc6# Francois Labelle, 2007
d 1.c4 Na6 2.c5 Nxc5 3.e3 a6 4.Ne2 Nd3# Richard Stanley &
Noam D. Elkies, 1996
  with promotion: 1.c4 e5 2.c5 Ne7 3.c6 Rg8 4.cxb7 c5 5.bxc8=N Nbc6 6.Nd6# Francois Labelle, 2007
e 1.e4 g6 2.e5 Bg7 3.e6 Kf8 4.exd7 Qe8 5.d8N Be6 6.Qf3 Nd7 7.Nxe6# Christoph Fieberg, 2002
f 1.Nf3 g5 2.Ne5 g4 3.Nxd7 e5 4.a3 Ne7 5.Nf6# Noam D. Elkies, 2002
  with promotion: 1.f4 e5 2.f5 Ba3 3.f6 Ne7 4.fxg7 Rf8 5.g8=N Na6 6.Nf6# Francois Labelle, 2007
g 1.h4 Nf6 2.h5 Nxh5 3.c3 f6 4.Qa4 Kf7 5.Qc6 dxc6 6.f3 Bd7 7.Kf2 Be8 8.Ke3 Qxd2 9.Ke4 Ng3# Hirokaz Onoda, 2007
h 1.Nc3 g5 2.Nd5 Bg7 3.Nxe7 Bxb2 4.Nf5 Ne7 5.Bxb2 O-O 6.Nh6# Francois Labelle, 2007

Knight to the 5th rank

a captureless: 1.d4 d5 2.Nd2 Kd7 3.Nb3 Kc6 4.Qd2 Kb5 5.a4 Kc4 6.Na5# Hirokaz Onoda, 2007
b captureless: 1.e4 e5 2.Ne2 Ke7 3.Nec3 Kd6 4.Qe2 Kc5 5.b4+ Kd4 6.Nb5# Francois Labelle, 2007
c captureless: 1.d4 d5 2.Nd2 Kd7 3.Nb3 Kc6 4.Bd2 Kb5 5.e4 Ka4 6.Nc5# Hirokaz Onoda, 2007
d captureless: 1.c4 e5 2.Qa4 Bb4 3.Kd1 c5 4.Kc2 Nc6 5.Kb3 Nd4# Francois Labelle, 2007
e captureless: 1.c3 f5 2.Qb3 f4 3.Qb6 Kf7 4.Nf3 Qe8 5.Ne5# Francois Labelle, 2007
f captureless: 1.e4 e5 2.Ke2 Ne7 3.Kf3 Ng6 4.Kg4 d5 5.Kh5 Nf4# Hirokaz Onoda, 2007
g captureless: 1.d3 e5 2.Bh6 Qf6 3.Kd2 Qc6 4.Ke3 Nf6 5.Nd2 Ng4# Francois Labelle, 2007
h captureless: 1.e4 e5 2.Ne2 Ke7 3.Ng3 Kf6 4.Qe2 Kg5 5.h4 Kf4 6.Nh5#  Hirokaz Onoda, 2007

Knight to the 4th rank

a captureless: 1.e3 d6 2.Ne2 Kd7 3.Nec3 Kc6 4.Qf3+ Kc5 5.Qd5+ Kb6 6.Na4# Francois Labelle, 2007
b 1.Nc3 d5 2.Nxd5 Bd7 3.c3 Bb5 4.Qa4 Kd7 5.Qd4 Kc6 6.Nb4# Francois Labelle, 2007
c captureless: 1.e3 d5 2.Ba6 Qd7 3.Ke2 Qg4+ 4.Kd3 Nd7 5.Nc3 Nc5# Francois Labelle, 2007
d captureless: 1.e3 c5 2.Ke2 Qa5 3.Kd3 Qa4 4.Kc3 Nf6 5.Bd3 Nd5# Francois Labelle, 2007
e captureless: 1.f3 d5 2.Kf2 Qd6 3.Ke3 Nd7 4.Kd4 Qc5+ 5.Kd3 Ne5# Francois Labelle, 2007
f captureless: 1.d3 e5 2.Bh6 Qh4 3.Kd2 Bb4+ 4.Ke3 Ne7 5.Nf3 Nf5# Francois Labelle, 2007
g 1.Nc3 d5 2.Nxd5 e6 3.Ne3 Ke7 4.d4 Kf6 5.Qd3 Be7 6.Ng4# Francois Labelle, 2007
h captureless: 1.e3 f6 2.Qf3 Kf7 3.Qd5 Kg6 4.Nf3 Nh6 5.Nh4# Hirokaz Onoda, 2007

Knight to the 3rd rank

a captureless: 1.d4 d5 2.Kd2 Kd7 3.Kc3 Ke6 4.Kb4 Bd7 5.Kc5 Na6# Hirokaz Onoda, 2007
b captureless: 1.e4 e5 2.Ke2 Bc5 3.Kd3 d6 4.Kc4 Nd7 5.Kd5 Nb6# Hirokaz Onoda, 2007
  captureless: 1.d3 f6 2.Qd2 Kf7 3.Qf4 Ke6 4.Nd2 Kd5 5.Qf5 Kd4 6.Nb3# Hirokaz Onoda, 2007
c 1.e3 e6 2.Qf3 Ke7 3.Qxb7 Kd6 4.Qxc7+ Kd5 5.Nc3# Francois Labelle, 2007
  captureless: 1.d3 e6 2.Kd2 Qg5 3.Kc3 Ne7 4.Kd4 Qg4 5.Ke5 Nec6# Hirokaz Onoda, 2007
d 1.c3 d5 2.Qc2 Bh3 3.Nxh3 Kd7 4.Nf4 Kd6 5.Qg6+ Ke5 6.Nd3# Francois Labelle, 2007
e 1.d4 Nc6 2.Kd2 Nxd4 3.Ke3 c6 4.Kf4 Qc7 5.Kg5 Qxh2 6.f4 Qh3 7.Rh2 Ne6# Hirokaz Onoda, 2007
f captureless: 1.e3 f5 2.Qf3 Kf7 3.Bc4 Kf6 4.Qc6 Ke5 5.Nf3# Goeran Forslund, 1996
g 1.e3 e6 2.Qg4 Ke7 3.Ne2 Kf6 4.Qxg7+ Kf5 5.Ng3# Francois Labelle, 2007
  captureless: 1.f3 e6 2.Kf2 Qf6 3.Kg3 Qf5 4.Kh4 Ne7 5.g3 Ng6# Hirokaz Onoda, 2007
h captureless: 1.e4 e5 2.Ke2 Ke7 3.Kf3 Kd6 4.Kg4 Be7 5.Kf5 Nh6#  Hirokaz Onoda, 2007

Knight to the 2nd rank

a    
b    
c    
d captureless: 1.d4 d5 2.Kd2 Be6 3.Kc3 Qd7 4.Kb4 Qa4 5.Kc5 Nd7# Hirokaz Onoda, 2007
e captureless: 1.e4 e5 2.Ke2 Ke7 3.Kf3 Kd6 4.Kg4 Qh4 5.Kf5 Ne7# Hirokaz Onoda, 2007
f    
g    
h    

Knight to the 1st rank

a    
b captureless: 1.d3 d6 2.Be3 Kd7 3.Qd2 Kc6 4.Qc3 Kb5 5.Nd2 Ka4 6.b3 Ka3 7.Nb1# Hirokaz Onoda, 2007
c    
d    
e    
f 1.d3 h6 2.Bxh6 Nf6 3.Bg5 Nh5 4.Bxe7 Bxe7 5.Kd2 Bb4 6.Ke3 d6 7.Ke4 Nd7 8.Kf5 f6 9.Kg6 Nf8# Hirokaz Onoda, 2007
g captureless: 1.e3 e6 2.Ke2 Bd6 3.Kf3 Qf6 4.Kg4 Ne7 5.Kh5 g6 6.Kh6 Ng8# Itamar Faybish, 2006
h 1.d3 h6 2.Bxh6 f5 3.Bg5 Nh6 4.Kd2 Nf7 5.Ke3 f4 6.Ke4 Rh3 7.Kf5 d6 8.Kg6 Nh8#  Hirokaz Onoda, 2007

II. Double Checkmates

Knight to the 8th rank

a 1.Nc3 d5 2.Nxd5 c6 3.Nb6 Qxd2 4.Bxd2 Kd8 5.Ba5 Kc7 6.Nxa8#  Hirokaz Onoda, 2007
b 1.e4 d5 2.exd5 Nc6 3.dxc6 e6 4.cxb7 Bd6 5.b8N Ne7 6.Nc6 Kd7 7.Bb5 Re8 8.Nb8# Hirokaz Onoda, 2007
  {without promotion: 1.Nc3 d5 2.Nxd5 Kd7 3.Nxe7 Qe8 4.Nc6 Qxe2 5.Qxe2 Be7 6.Qe5 Bd8 7.Bb5 Ne7 8.Nb8# } Hirokaz Onoda, 2007
c 1.c4 e6 2.c5 Be7 3.c6 Bf6 4.cxb7 Nc6 5.bxc8N Rb8 6.Nd6 Ke7 7.Qc2 Qe8 8.Qc5 Nd8 9.Nc8#  Hirokaz Onoda, 2007
d 1.e4 Nf6 2.e5 Nh5 3.e6 f6 4.exd7 Kf7 5.Qg4 Qe8 6.d8N Kg8 7.Ne6 Kf7 8.Bc4 Rg8 9.Nd8# Hirokaz Onoda, 2007
  without promotion: 1.Nf3 b6 2.Ne5 Ba6 3.Nxd7 Bxe2 4.Ne5 Bh5 5.Nc6 Kd7 6.Qf3 Kc8 7.Be2 Kb7 8.O-O Qc8 9.Nd8# Hirokaz Onoda, 2007
e 1.d4 g6 2.d5 Bh6 3.d6 Kf8 4.dxe7 Kg7 5.e8N Kf8 6.Nf6 Kg7 7.Qd4 Qf8 8.Ne8# Hirokaz Onoda, 2007
  without promotion: 1.Nf3 g6 2.Ne5 Bh6 3.Nxd7 Bxd2 4.Bxd2 c6 5.Nf6 Kf8 6.Bc3 Kg7 7.Qd2 Qf8 8.Ne8# Hirokaz Onoda, 2007
f 1.e4 f6 2.e5 Kf7 3.e6 Kg6 4.exd7 h6 5.dxc8N Kh7 6.Nxe7 Qc8 7.Ng6 Bd6 8.Bd3 Be5 9.Nf8#  Hirokaz Onoda, 2007
g 1.Nc3 d5 2.Nxd5 e6 3.Nf6 Ke7 4.c3 Qxd2 5.Bxd2 Bd7 6.Bg5 Be8 7.Nxg8# Hirokaz Onoda, 2007
  with promotion: 1.d4 e5 2.dxe5 Nf6 3.exf6 d6 4.fxg7 Be6 5.g8N Nd7 6.Nf6 Ke7 7.Bg5 Qe8 8.Ng8# Hirokaz Onoda, 2007
h 1.Nf3 e5 2.Nxe5 Qe7 3.Ng6 Qxe2 4.Bxe2 h5 5.Bxh5 f6 6.Qe2 Kf7 7.Nxh8# Hirokaz Onoda, 2007

Knight to the 7th rank

a 1. d4 Nf6 2. Nd2 Nd5 3. Nb3 Nb4 4. Kd2 d5 5. Kc3 Bd7 6. Bd2 Bb5 7. Be1 c6 8. Qd2 Qa5 9. Rd1 Nxa2# Satoru Hayakawa, 2007
b 1.Nf3 e5 2.Nxe5 Bb4 3.Nxf7 Bxd2 4.Bxd2 d6 5.Bb4 Bd7 6.Qd2 Qc8 7.Nxd6 Kd8 8.Kd1 Be8 9.Nxb7#  Hirokaz Onoda, 2007
c 1.d3 Nf6 2.Bf4 Nd5 3.Bxc7 Nb4 4.Bd6 Qa5 5.c4 Nc2# Francois Labelle, 2007
  invisible: 1.f4 Nf6 2.f5 Ne4 3.f6 Nxd2 4.fxe7 Nxb1 5.exf8N Nc3 6.Ne6 Nxe2 7.Qxe2 Rf8 8.Nxc7#  Hirokaz Onoda, 2007
d 1.e4 Nc6 2.e5 Nxe5 3.Bb5 Nc4 4.Bxd7 Bxd7 5.Kf1 Bb5 6.Qe1 Nxd2#  Hirokaz Onoda, 2007
e 1.Nf3 Nc6 2.Ne5 Nd4 3.f3 c6 4.Kf2 Qb6 5.Kg1 Nxe2# Francois Labelle, 2007
f 1.g3 Nf6 2.Bh3 Ne4 3.Bxd7 Bxd7 4.Nh3 Bc6 5.O-O Qd7 6.Kh1 Kd8 7.Rg1 Nxf2#  Hirokaz Onoda, 2007
g invisible: 1.f4 Nf6 2.f5 Ne4 3.f6 Nxd2 4.fxe7 Nxb1 5.exf8N Nc3 6.Ne6 Nxe2 7.Qxe2 Rf8 8.Nxg7#  Hirokaz Onoda, 2007
h 1.Nc3 d5 2.Nxd5 e6 3.c3 Be7 4.Qa4 Kf8 5.Qf4 f6 6.Nxf6 Qe8 7.Nxh7# Hirokaz Onoda, 2007

Knight to the 6th rank

a 1.d4 Nc6 2.d5 Na5 3.d6 c6 4.dxe7 Qb6 5.exf8N Kd8 6.Bg5 Kc7 7.Ne6 Kb8 8.Nc7 Nf6 9.Qd6 Rd8 10.Na6# Hirokaz Onoda, 2007
b 1.e3 d5 2.Qg4 Bf5 3.Nf3 Kd7 4.Ne5+ Kc8 5.Nd7 Bd3 6.Nb6# Francois Labelle, 2007
  invisible: 1.d3 e5 2.Bf4 exf4 3.Kd2 f3 4.Kc1 fxg2 5.Nf3 gxf1N 6.Rg1 Nd2 7.Rxg7 Qg5 8.Rxg8 Nb3#  Hirokaz Onoda, 2007
c captureless: 1.Nc3 e6 2.Nd5 Qe7 3.c3 Kd8 4.Qa4 Qe8 5.Ne7 Nc6 6.Qh4 Ne5 7.Nc6#  Hirokaz Onoda, 2007
d 1.d4 Nf6 2.Bf4 Nd5 3.Bxc7 Nb4 4.Bd6 Qa5 5.Bc5 Nd3#  Francois Labelle, 2007
e 1.g3 Nf6 2.Bh3 Nd5 3.Bxd7+ Qxd7 4.Kf1 Qc6 5.Kg2 Ne3#  Francois Labelle, 2007
f 1.d3 Nf6 2.Bf4 Ne4 3.Bxc7 Nd2 4.Bd6 Qa5 5.Bc5 Nf3# Noam D. Elkies, May 1996
  captureless: 1.Nf3 Nc6 2.Ne5 Nd4 3.Nc4 e5 4.f4 Qf6 5.Kf2 Qb6 6.Kg1 Nf3# Unto Heinonen, 1996
  captureless: 1.Nf3 d5 2.Ne5 Bf5 3.Nd7 e5 4.c3 Ne7 5.Qa4 Rg8 6.Nf6# Goeran Wicklund, 1996
g 1.Nc3 e5 2.Nd5 Bb4 3.Ne7 Bc3 4.bxc3 Kf8 5.Ba3 Qe8 6.Ng6# Francois Labelle, 2007
  invisible: 1.d4 b5 2.d5 b4 3.d6 b3 4.dxe7 bxc2 5.exf8N cxb1B 6.Ng6 Bf5 7.Ne7 Kf8 8.Qd6 Qe8 9.Ng6#  Hirokaz Onoda, 2007
h 1.d4 Nf6 2.d5 Nh5 3.d6 f6 4.dxe7 Kf7 5.exd8N Kg8 6.Nf7 d6 7.Qd5 Nd7 8.Nh6# Hirokaz Onoda, 2007

Knight to the 5th rank

a 1.Nf3 b6 2.Ne5 Ba6 3.Nxd7 Bxe2 4.Ne5 Bh5 5.Nc6 Kd7 6.Qf3 Kc8 7.Be2 Kb7 8.O-O Qc8 9.Na5# Hirokaz Onoda, 2007
b 1.e3 a6 2.Bxa6 Ra7 3.Bb5 Na6 4.Bxd7 Bxd7 5.d3 Be6 6.Kd2 Bxa2 7.Kc3 Bxb1 8.Kb3 Bxc2 9.Ka2 Nb4#  Hirokaz Onoda, 2007
c captureless: 1.d3 d6 2.Nd2 Kd7 3.Nb3 Kc6 4.Bd2 Kb5 5.c4 Ka4 6.Nc5#  Hirokaz Onoda, 2007
d captureless: 1.c4 e6 2.Nc3 Ba3 3.b4 Qg5 4.Bb2 Ke7 5.Qb1 Kf6 6.Nd5# Francois Labelle, 2007
  with promotion: 1.d4 e5 2.dxe5 Nf6 3.exf6 d6 4.fxg7 Be6 5.g8N Nd7 6.Nf6 Ke7 7.Bg5 Qe8 8.Nd5#  Hirokaz Onoda, 2007
e captureless: 1.d3 d5 2.Bg5 Kd7 3.f4 Ke6 4.Nf3 Kf5 5.e4+ Kg4 6.Ne5# Francois Labelle, 2007
  with promotion: 1.e4 d5 2.exd5 Nc6 3.dxc6 e6 4.cxb7 Bd6 5.b8N Ne7 6.Nc6 Kd7 7.Bb5 Re8 8.Ne5#  Hirokaz Onoda, 2007
f 1.c4 e6 2.c5 Be7 3.c6 Bf6 4.cxb7 Nc6 5.bxc8N Rb8 6.Nd6 Ke7 7.Qc2 Qe8 8.Qc5 Nd8 9.Nf5#  Hirokaz Onoda, 2007
g 1.d3 h6 2.Bxh6 Rh7 3.Bg5 Nh6 4.Bxe7 Bxe7 5.Kd2 Bd6 6.Ke3 Bxh2 7.Kf3 Bxg1 8.Kg3 Bxf2 9.Kh2 Ng4#  Hirokaz Onoda, 2007
h 1.d4 g6 2.d5 Bh6 3.d6 Kf8 4.dxe7 Kg7 5.e8N Kf8 6.Nf6 Kg7 7.Qd4 Qf8 8.Nh5# Hirokaz Onoda, 2007
  without promotion: 1.Nf3 g6 2.Ne5 Bh6 3.Nxd7 Bxd2 4.Bxd2 c6 5.Nf6 Kf8 6.Bc3 Kg7 7.Qd2 Qf8 8.Nh5# Hirokaz Onoda, 2007

Knight to the 4th rank

a 1.e4 Nc6 2.e5 Nxe5 3.Bb5 Nc4 4.Bxd7 Qxd7 5.Ke2 Qc6 6.Kd3 e5 7.Kc3 Be6 8.Kb3 Na5#  Hirokaz Onoda, 2007
b 1.e4 Nc6 2.Bb5 Nd4 3.Bxd7 Qxd7 4.d3 Qa4 5.Bh6 gxh6 6.Kd2 Bg7 7.Kc3 Be5 8.Nd2 Nb5#  Hirokaz Onoda, 2007
c 1.b3 d6 2.Bb2 Nd7 3.Bxg7 Bxg7 4.f3 Be5 5.Kf2 f6 6.Ke3 Kf7 7.Ke4 Kg6 8.Kd5 c6 9.Ke6 Nc5#  Hirokaz Onoda, 2007
d 1.e4 g6 2.Ke2 Bh6 3.Kd3 Kf8 4.Kd4 e5 5.Kxe5 Ne7 6.Kf6 d6 7.e5 Nd5#  Hirokaz Onoda, 2007
e captureless: 1.d4 f6 2.Qd3 Kf7 3.Qf3 Kg6 4.Nd2 Kg5 5.g3 g6 6.Ne4#  Francois Labelle, 2007
f captureless: 1.d3 f5 2.Bg5 Kf7 3.e3 Kg6 4.Ne2 Kh5 5.h4 g6 6.Nf4# Francois Labelle, 2007
g 1.d4 Nf6 2.Bg5 Ne4 3.Bxe7 Qxe7 4.e3 Qh4 5.Ba6 bxa6 6.Ke2 Bb7 7.Kf3 Bd5 8.Ne2 Ng5#  Hirokaz Onoda, 2007
h 1.d4 Nf6 2.d5 Nxd5 3.Bg5 Nf4 4.Bxe7 Qxe7 5.Kd2 Qb4 6.Ke3 d5 7.Kf3 Bd6 8.Kg3 O-O 9.Nf3 Nh5# Hirokaz Onoda, 2007

Knight to the 3rd rank

a 1.d3 Na6 2.Bg5 Nc5 3.Bxe7 Qxe7 4.Kd2 Qe6 5.Kc3 Qxa2 6.Kb4 d5 7.c3 Bd7 8.Qc2 Na6#  Hirokaz Onoda, 2007
b    
c 1.e3 a6 2.Bxa6 Nc6 3.Bb5 Na7 4.Bxd7 Kxd7 5.d3 Ke6 6.Kd2 Qd5 7.Kc3 Bd7 8.Kb4 Qb3 9.Ka5 Nc6#  Hirokaz Onoda, 2007
d (5.5, ?): PUZZLE!! 6.Nd3#  Francois Labelle, 2007
e    
f captureless: 1.d3 f6 2.Qd2 Kf7 3.Qb4 Kg6 4.Nd2 Kg5 5.g4 g6 6.Ndf3#  Francois Labelle, 2007
g captureless: 1.d3 f5 2.Bf4 Kf7 3.e3 Kg6 4.Ne2 Kh5 5.h4 g6 6.Ng3# Francois Labelle, 2007
h 1.e3 Nh6 2.Bb5 Nf5 3.Bxd7 Qxd7 4.Ke2 Qd6 5.Kf3 Qxh2 6.Kg4 e5 7.Nf3 Be7 8.Rg1 Nh6#  

Knight to the 2nd rank

a 1.d3 d6 2.Kd2 Qd7 3.Kc3 Qc6 4.Kb4 Qc3 5.Kb5 Nc6 6.Be3 Bd7 7.Bxa7 Nxa7# Hirokaz Onoda, 2007
b    
c    
d    
e 1.d3 h6 2.Bxh6 d6 3.Bg5 Bf5 4.Bxe7 Bh7 5.Bxf8 Ne7 6.Kd2 Ng6 7.Ke3 Qg5 8.Ke4 Qg3 9.Kf5 Ne7#  Hirokaz Onoda, 2007
f    
g    
h    

Knight to the 1st rank

a 1.e3 a6 2.Bxa6 c5 3.Bb5 Na6 4.Ke2 Nc7 5.Kd3 c4 6.Kd4 Ra3 7.Kc5 e6 8. Kb6 Na8#  Hirokaz Onoda, 2007
b 1.d3 e6 2.Kd2 Ke7 3.Ke3 Kd6 4.Bd2 Kc5 5.Be1 Bd6 6.Nd2 Ne7 7.b4 Kxb4 8.Qc1 Kc3 9.Nb1#  Hirokaz Onoda, 2007
c 1.g3 e6 2.Bg2 Ne7 3.Bxb7 Bxb7 4.d4 Bd5 5.Kd2 c6 6.Ke3 Qb6 7.Kf4 Kd8 8.Ke5 f6 9.Kd6 Nc8#  Hirokaz Onoda, 2007
d 1.c4 d5 2.Nc3 Kd7 3.Qa4+ Kd6 4.b3 a6 5.Qxa6+ Kc5 6.Qf6 Kb4 7.Ba3+ Kxa3 8.d3 Kb2 9.Kd2 Ra3 10.Nd1# Satoru Hayakawa, 2007
e 1.e3 d6 2.Qf3 Kd7 3.Qc6 Ke6 4.Nf3 Kf5 5.g4 Kxg4 6.Bh3 Kxh3 7.Ke2 Kg2 8.h4 Bh3 9.Ne1#  Hirokaz Onoda, 2007
f 1.b3 d6 2.Bb2 Nd7 3.Bxg7 Bxg7 4.f3 Be5 5.Kf2 f6 6.Ke3 Kf7 7.Ke4 Kg6 8.Kd5 c6 9.Ke6 Nf8#  Hirokaz Onoda, 2007
g captureless: 1.e3 d6 2.Ke2 Bh3 3.Kf3 e6 4.Kf4 Ne7 5.Kg5 g6 6.Kf6 Ng8# Roberto Osorio, 2006
h 1.d3 h6 2.Bxh6 f5 3.Bg5 Nh6 4.Bxe7 Nf7 5.Bh4 Be7 6.Kd2 Kf8 7.Ke3 Qe8 8.Kf4 Bd8 9.Kxf5 Rh5 10.Kg6 Nh8# Hirokaz Onoda, 2007

III. Discovered Checkmates

in which the last move's Knight takes part in forming the mating net

1.a4 c6 2.a5 Qb6 3.axb6 Kd8 4.bxa7 b6 5.axb8N Bb7 6.Rxa8 Ba6 7.Nxa6# Noam D. Elkies, 2002
1.e3 Nc6 2.Ke2 Nd4 3.Kd3 c6 4.Ne2 Qa5 5.Ng3 Qd5 6.Be2 Nb5# Andrew Buchanan, 2002
1.Nc3 f6 2.Nd5 Kf7 3.c3 Ke6 4.Qa4 Kd6 5.Qd4 e6 6.a4 Qe7 7.Nb4# Andrew Buchanan, 2002
1.h4 f6 2.h5 Kf7 3.h6 Kg6 4.Nh3 Kh5 5.f4 g6 6.Nf2# Noam D. Elkies, 2002

no condition on the mating net

(5.5, 3) 1.e3 d5 2.Qh5 Bh3 3.Nxh3 Nd7 4.Ng5 Rb8 5.Nxf7 g5 6.Nxh8# Francois Labelle, 2007
  [no example to the 7th rank] Francois Labelle, 2007
(5.5, 0) 1.e3 d6 2.Qf3 Kd7 3.Qf4 Kc6 4.Ne2 Kb5 5.Nd4+ Ka4 6.Nc6# Francois Labelle, 2007
(5.5, 2) 1.e3 d5 2.Qh5 Bh3 3.Nxh3 Nd7 4.Ng5 Rb8 5.Nxf7 g5 6.Nh6# Francois Labelle, 2007
(5.5, 2) 1.e3 d5 2.Qh5 Bh3 3.Nxh3 Na6 4.Ng5 Rb8 5.Nxf7 g5 6.Ne5# Francois Labelle, 2007
(5.0, 0) 1.e3 d5 2.Ke2 Qd6 3.Kf3 Nd7 4.Kg4 Qg3+ 5.Kf5 Nc5# Francois Labelle, 2007
(5.5, 0) 1.e3 d6 2.Qe2 Kd7 3.Qa6 Ke6 4.Ne2 Kd5 5.Qa5+ Kc4 6.Nd4# Francois Labelle, 2007
(5.0, 0) 1.e3 d5 2.Ke2 Qd6 3.Kf3 Nd7 4.Kg4 Qg3+ 5.Kf5 Ne5# Francois Labelle, 2007
(5.0, 0) 1.e3 e6 2.Ke2 Bd6 3.Kf3 Ne7 4.Kg4 h5+ 5.Kg5 Nf5# Francois Labelle, 2007
(5.0, 0) 1.e3 d5 2.Ke2 Qd6 3.Kf3 Nd7 4.Kg4 Qg3+ 5.Kf5 Nb6# Francois Labelle, 2007
(5.0, 0) 1.e3 e6 2.Ke2 Bd6 3.Kf3 Ne7 4.Kg4 h5+ 5.Kg5 Nec6#  
(5.0, 0) 1.e3 d5 2.Ke2 Qd6 3.Kf3 Nd7 4.Kg4 Qg3+ 5.Kf5 Ndf6#  
(5.0, 0) 1.e3 e6 2.Ke2 Bd6 3.Kf3 Ne7 4.Kg4 h5+ 5.Kg5 Ng6#  
(5.0, 1) 1.f3 h5 2.Kf2 Nh6 3.Kg3 h4+ 4.Kxh4 f5 5.g3 Nf7#  
(5.5, 0) 1.d3 f5 2.Bf4 Kf7 3.e3 Kg6 4.Ne2 Kh5 5.g3 Kg4 6.Nc1#  
(5.5, 0) 1.e4 d6 2.Ba6 Kd7 3.d3 Ke6 4.Nd2 Ke5 5.Qh5+ Kf4 6.Nf1#