[Retros] FW: FW: Distance-PG

[Nicolas Dupont]

> 1. e3 f6 2. e4 Kf7 3. e5 Kg6 4. e6 Kg5 5. d3+ Kh4 6. g3#
> 1. f3 b6 2. f4 Bb7 3. f5 Qc8 4. f6 Kd8 5. fxg7 f6 6. gxf8=Q#
> 1. f3 b6 2. f4 Bb7 3. f5 Qc8 4. f6 Kd8 5. fxg7 f6 6. gxf8=R#
> 1. h3 b6 2. h4 Bb7 3. h5 Qc8 4. h6 Kd8 5. hxg7 h6 6. gxf8=Q#
> 1. h3 b6 2. h4 Bb7 3. h5 Qc8 4. h6 Kd8 5. hxg7 h6 6. gxf8=R#

As a matter of fact, solution becomes unique with the "no capture"
condition. It makes me think that this condition may be added or replace
the mate condition, leading to NC#(a,b,c) and NC(a,b,c).

Among other questions, it would be interesting to find the  
highest/lowest possible average speed under those new setups... I beg  
that the above first game is actually the record for lowest NC#.