[Retros] Shortest Knight Double Checkmates

[Hirokaz ONODA]

Hi,

Knight to the 8th rank 

 1. Pd2-d4   Pg7-g6     2. Pd4-d5   Ff8-h6     3. Pd5-d6   Re8-f8    
 4. Pd6xe7   Rf8-g7     5. Pe7-e8=C Rg7-f8     6. Ce8-f6   Rf8-g7    
 7. Dd1-d4   Dd8-f8     8. Cf6-e8   

 1. Pd2-d4   Pe7-e5     2. Pd4xe5   Cg8-f6     3. Pe5xf6   Pd7-d6    
 4. Pf6xg7   Fc8-e6     5. Pg7-g8=C Cb8-d7     6. Cg8-f6   Re8-e7    
 7. Fc1-g5   Dd8-e8     8. Cf6-g8   

 1. Pe2-e4   Pd7-d5     2. Pe4xd5   Cb8-c6     3. Pd5xc6   Pe7-e6    
 4. Pc6xb7   Ff8-d6     5. Pb7-b8=C Cg8-e7     6. Cb8-c6   Re8-d7    
 7. Ff1-b5   Th8-e8     8. Cc6-b8   

 1. Pc2-c4   Pe7-e6     2. Pc4-c5   Ff8-e7     3. Pc5-c6   Fe7-f6    
 4. Pc6xb7   Cb8-c6     5. Pb7xc8=C Ta8-b8     6. Cc8-d6   Re8-e7    
 7. Dd1-c2   Dd8-e8     8. Dc2-c5   Cc6-d8     9. Cd6-c8   

 1. Pe2-e4   Cg8-f6     2. Pe4-e5   Cf6-h5     3. Pe5-e6   Pf7-f6    
 4. Pe6xd7   Re8-f7     5. Dd1-g4   Dd8-e8     6. Pd7-d8=C Rf7-g8    
 7. Cd8-e6   Rg8-f7     8. Ff1-c4   Th8-g8     9. Ce6-d8   

Knight to the 6th rank

 1. Pd2-d4   Cg8-f6     2. Pd4-d5   Cf6-h5     3. Pd5-d6   Pf7-f6    
 4. Pd6xe7   Re8-f7     5. Pe7xd8=C Rf7-g8     6. Cd8-f7   Pd7-d6    
 7. Dd1-d5   Cb8-d7     8. Cf7-h6   

Knight to the 5th rank

 1. Pd2-d4   Pg7-g6     2. Pd4-d5   Ff8-h6     3. Pd5-d6   Re8-f8    
 4. Pd6xe7   Rf8-g7     5. Pe7-e8=C Rg7-f8     6. Ce8-f6   Rf8-g7    
 7. Dd1-d4   Dd8-f8     8. Cf6-h5   

 1. Pd2-d4   Pe7-e5     2. Pd4xe5   Cg8-f6     3. Pe5xf6   Pd7-d6    
 4. Pf6xg7   Fc8-e6     5. Pg7-g8=C Cb8-d7     6. Cg8-f6   Re8-e7    
 7. Fc1-g5   Dd8-e8     8. Cf6-d5   

 1. Pe2-e4   Pd7-d5     2. Pe4xd5   Cb8-c6     3. Pd5xc6   Pe7-e6    
 4. Pc6xb7   Ff8-d6     5. Pb7-b8=C Cg8-e7     6. Cb8-c6   Re8-d7    
 7. Ff1-b5   Th8-e8     8. Cc6-e5   

 1. Pc2-c4   Pe7-e6     2. Pc4-c5   Ff8-e7     3. Pc5-c6   Fe7-f6    
 4. Pc6xb7   Cb8-c6     5. Pb7xc8=C Ta8-b8     6. Cc8-d6   Re8-e7    
 7. Dd1-c2   Dd8-e8     8. Dc2-c5   Cc6-d8     9. Cd6-f5   

Hiro


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