[Retros] Two little SPG-challenges

[Mario Richter]

Hello,


> Another attempt:

>

> SPG in 11.0 moves - Christoph Fieberg - 26.11.2004 - C-

> 2bqkbnr/4p1pp/8/8/8/8/1PP2P1P/RNBQK1N1 w Qk - 0 12


Unfortunately, my computer found a lot of cooks, e.g.:

1.  d4  f5 2.  d5  f4 3.  d6  f3 4. dxc7 fxe2 5. cxb8=R exf1=B 6. Rb8xb7
Bf1xg2 7. Rb7xa7 Bg2xh1 8. Ra7xd7 Ra8xa2 9. Ra1xa2 Bh1-b7 10. Rd7xb7 Bc8xb7
11. Ra2-a1 Bb7-c8

or

1.  d4  f5 2.  d5  f4 3.  d6  f3 4. dxc7 fxe2 5. cxb8=Q exf1=B 6. Qb8xa7
Bf1xg2 7. Qa7xb7 Bg2xh1 8. Qb7xh1  d5 9. Qh1xd5 Ra8xa2 10. Ra1xa2 Qd8xd5 11.
Ra2-a1 Qd5-d8

greetings
   mario