[Retros] Shortest Knight Double Checkmates

[Hirokaz ONODA]

Hi,

Knight to the 7th rank
 1. Cg1-f3   Pe7-e5     2. Cf3xe5   Ff8-b4     3. Ce5xf7   Fb4xd2    
 4. Fc1xd2   Pd7-d6     5. Fd2-b4   Fc8-d7     6. Dd1-d2   Dd8-c8    
 7. Cf7xd6   Re8-d8     8. Re1-d1   Fd7-e8     9. Cd6xb7   

Knight to the 3rd rank
 1. Pe2-e4   Pg7-g6     2. Dd1-g4   Ff8-h6     3. Ff1-e2   Re8-f8    
 4. Fe2-d1   Rf8-g7     5. Cg1-e2   Rg7-f6     6. Dg4-e6   Rf6-g5    
 7. Ph2-h4   Rg5-h5     8. Ce2-g3   
captureless

Knight to the 4th rank
 1. Pe2-e4   Pg7-g6     2. Dd1-g4   Ff8-h6     3. Ff1-e2   Re8-f8    
 4. Fe2-d1   Rf8-g7     5. Cg1-e2   Rg7-f6     6. Dg4-e6   Rf6-g5    
 7. Ph2-h4   Rg5-h5     8. Ce2-f4   
captureless

Hiro


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