[Retros] King mated on the 7th/8th rank

[Hirokaz ONODA]

Hello,

[White's King on g8] fewer captures than before
 1.Pf2-f3 Pg7-g5  2.Re1-f2 Ff8-g7  3.Rf2-g3 Fg7-e5
 4.Rg3-g4 Pd7-d5  5.Rg4-h5 Cg8-f6  6.Rh5-h6 Dd8-d6
 7.Rh6-g7 Ph7-h5  8.Rg7xh8 Cf6-d7  9.Rh8-g8 Dd6-g6

[Black's King on g1]
 1.Pg2-g4 Pf7-f6  2.Ff1-g2 Re8-f7  3.Fg2xb7 Rf7-g6
 4.Fb7-e4 Rg6-g5  5.Pd2-d4 Rg5-h4  6.Cg1-f3 Rh4-h3
 7.Dd1-d3 Rh3-g2  8.Ph2-h4 Rg2xh1  9.Cf3-d2 Rh1-g1
10.Dd3-g3   

[White's King on f8] fewer captures than before
 1.Pf2-f3 Pg7-g5  2.Re1-f2 Ff8-g7  3.Rf2-g3 Fg7-e5
 4.Rg3-g4 Pd7-d6  5.Rg4-h5 Cg8-f6  6.Rh5-h6 Dd8-d7
 7.Rh6-g7 Re8-d8  8.Rg7xh8 Cf6-d5  9.Rh8-g8 Cd5-b6
10.Rg8-f8 Dd7-e8    

[Black's King on f1]
 1.Pg2-g4 Pf7-f6  2.Ff1-g2 Re8-f7  3.Fg2xb7 Rf7-g6
 4.Fb7-e4 Rg6-g5  5.Pd2-d3 Rg5-h4  6.Cg1-f3 Rh4-h3
 7.Dd1-d2 Rh3-g2  8.Re1-d1 Rg2xh1  9.Cf3-d4 Rh1-g1
10.Cd4-b3 Rg1-f1 11.Dd2-e1   

[White's King on b7] captureless
 1.Pd2-d3 Pb7-b5  2.Re1-d2 Fc8-b7  3.Rd2-c3 Fb7-d5
 4.Rc3-b4 Pe7-e6  5.Rb4-a5 Cb8-c6  6.Ra5-a6 Ff8-e7
 7.Ra6-b7 Cc6-b4    

[White's King on g7] captureless
 1.Pf2-f3 Pg7-g5  2.Re1-f2 Ff8-g7  3.Rf2-g3 Fg7-e5
 4.Rg3-g4 Pd7-d6  5.Rg4-h5 Cg8-f6  6.Rh5-h6 Dd8-d7
 7.Rh6-g7 Cf6-g4    

And surely not the shortest.
[White's King on h7]  
 1.Pf2-f3 Pg7-g5  2.Re1-f2 Ff8-g7  3.Rf2-g3 Fg7-e5
 4.Rg3-g4 Pd7-d6  5.Rg4-h5 Cg8-f6  6.Rh5-h6 Dd8-d7
 7.Rh6-g7 Dd7-e6  8.Rg7xh8 Cf6-d5  9.Rh8xh7 De6-g6

Hiro


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