[Retros] Double Edgemover 10-piece (kings to original places)

[Mario Richter]

> The job can be done in 18.5 moves:

> 1.a2-a4 h7-h5 2.a4-a5 h5-h4 3.a5-a6 h4-h3 4.g2xh3 b7xa6 

> 5.Ra1xa6 Rh8xh3 6.Nb1-a3 Ng8-h6 7.Ra6xa7 Nb8-a6 8.Ra7xa6 Rh3xa3 

> 9.Ra6xh6 g7xh6 10.b2xa3 Ra8xa3 11.Bf1-h3 Ra3xh3 12.Bc1-a3 Rh3xa3 

> 13.Qd1-c1 Bc8-a6 14.Qc1xa3 Qd8-a8 15.Qa3xa6 Qa8xh1 16.Qa6xh6 Qh1xh2 

> 17.Qh6xf8+ Ke8xf8 18.Ke1-f1 Qh2xg1+ 19.Kf1xg1


I just realized, that the subject line of Juha's posting contained
an additional constraint: "kings to original places", so an extra 
half move is needed:

1.a2-a4 h7-h5 2.a4-a5 h5-h4 3.a5-a6 b7xa6 4.Ra1xa6 h4-h3 
5.g2xh3 Rh8xh3 6.Ra6xa7 Bc8-a6 7.Ra7xa6 Rh3xh2 8.Bf1-h3 Rh2xh3 
9.Ra6-h6 Rh3-a3 10.b2xa3 g7xh6 11.Rh1xh6 Ra8xa3 12.Ng1-h3 Ra3xh3 
13.Bc1-a3 Rh3xa3 14.Rh6-h8 Ra3-a1 15.Rh8xg8 Ra1xb1 16.Qd1xb1 Qd8-c8 
17.Rg8xf8+ Ke8xf8 18.Qb1xb8 Qc8-e8 19.Qb8xe8+ Kf8xe8

Best regards,
 
   mario