[Retros] Pawn to-the-5th-rank mates (f5#)
    Richard Stanley 
    rstan at math.mit.edu
       
    Tue Jan  2 21:28:20 EST 2007
    
    
  
Here is an improvement for f5# (C+).
  1.d2-d4 f7-f6    2.Qd1-d3 Ke8-f7  3.Qd3*h7 Qd8-e8   
  4.Qh7-h3 Kf7-g6  5.f2-f4 Qe8-f7   6.f4-f5 dia 
Richard
    
    
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