[Retros] SPG task (1+1)

[Joost de Heer]

> Sam Loyd also composed positions with wKf1/bKf8 and wKe2/bKe7, but I do

> not know if they are exact PG?s.  Back then, the emphasis was only on

> getting to the position as fast as possible.

> 

> The first example has duals, but I cannot find an obvious dual in the

> second:

> 

> 1.c4 d5 2.cxd5 Qxd5 3.Qc2 Qxg2 4.Qxc7 Qxg1 5.Qxb7 Qxh2

> 6.Qxb8 Qe5 7.Qxc8+ Rxc8 8.Rxh7 Qxb2 9.Rxh8 Qxa2 10.Rxg8 Qxd2+

> 11.Kxd2 Rxc1 12.Rxg7 Rxb1 13.Rxf7 Rxf1 14.Rxf8+ Kxf8 15.Rxa7 Rxf2

> 16.Rxe7 Rxe2+ 17.Kxe2 Kxe7.


1. c4 d5 2. cxd5 Bh3 3. Nxh3 Qxd5 4. Ng5 Qxa2 5. Nxh7 Qxb1 6. Nxf8 Qxc1 7.
Qxc1 Rxh2 8. Qxc7 Rxg2 9. Qxb7 Rxf2 10. Qxb8+ Rxb8 11. Rxa7 Rxf1+ 12. Rxf1
Rxb2 13. Rxf7 Rxd2 14. Rxg7 Rxe2+ 15. Kxe2 Kxf8 16. Raxe7 Nxe7 17. Rxe7
Kxe7

1. d4 c5 2. Nh3 h6 3. Bxh6 cxd4 4. Bxg7 Rxh3 5. Bxf8 Rxh2 6. Bxe7 Rxg2 7.
Qxd4 Rxf2 8. Qxa7 Rxf1+ 9. Rxf1 Nxe7 10. Qxb8 Rxa2 11. Rxf7 Rxb2 12. Qxc8
Rxb1+ 13. Rxb1 Qxc8 14. Rxb7 Qxc2 15. Rxd7 Qxe2+ 16. Kxe2 Kxd7 17. Rxe7+
Kxe7

1. e4 d5 2. exd5 Qxd5 3. Bd3 Qxa2 4. Bxh7 Qxb1 5. Bxg8 Qxc2 6. Bxf7+ Kxf7
7. Rxa7 Qxc1 8. Rxb7 Rxh2 9. Rxb8 Rxb8 10. Qxc1 Rxg2 11. Qxc7 Rxb2 12. Qxc8
Rxg1+ 13. Rxg1 Rxd2 14. Qxf8+ Kxf8 15. Rxg7 Rxf2 16. Rxe7 Re2+ 17. Kxe2
Kxe7

Joost
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