[Retros] FW: FW: FW: Distance-PG

[Nicolas Dupont]

> The Mate SPG in 11.5 shown below achieves an average above 3.91

When the only constraint is to reach a checkmate position, the actual  
Max for move-length average is 4,74 (list of 5.5 games provided by  
François). I thought possible to overstep 5 via the game:

1. Pe2-e4   Ph7-h5     2. Dd1xh5   Pa7-a5     3. Dh5xa5   Th8-h3
4. Da5-h5   Ta8xa2     5. Ff1-c4   Ta2-a8     6. Ta1xa8   Th3-a3
7. Fc4xf7#

But it is surprisingly cooked because of the alternative:

1. Pe2-e4   Pa7-a6     2. Ff1xa6   Ph7-h5     3. Fa6-c4   Ta8xa2
4. Ta1xa2   Th8-h6     5. Ta2-a8   Th6-a6     6. Dd1xh5   Ta6-a3
7. Fc4xf7#

I'm nevertheless able to break 4,74 (but not 5), via the following game:

1. Pe2-e4   Ph7-h5     2. Dd1xh5   Pa7-a5     3. Dh5xa5   Th8-h3
4. Da5-h5   Ta8xa2     5. Ff1-c4   Ta2-a8     6. Ta1-a6   Th3-a3
7. Ta6-h6   Ta3-a7     8. Fc4xf7#

It is a #(60,10,0) in 7.5 with move-length average around 4,94.  
Breaking the emblematic 5 barrier is thus still open.