[Retros] rights & ocassions / not answering Andrew anymore

Nicolas Dupont Nicolas.Dupont at univ-lille1.fr
Sat May 24 08:40:32 EDT 2014


> The move sequence up to 18.Txg8+ is unique (C+ Euclide);   the   
> repetition moves are separate from this.  I recall some time ago   
> testing the repetition phase with Popeye a=>b.

Suppose you have a C+ PG in N moves with diagram position D, and then  
a C+ PG in M moves going from D to D. Is it true that the resulting PG  
in N+2M moves, with diagram position D, is C+ with the additional  
hypothesis "remis"?

By the way, is it possible to construct a sound PG with a repetition  
of the diagram position? Of course, if any, it cannot be a SPG.

Best,

Nicolas.


>> > P1011937,
>> > Guus Rol
>> > R222 Probleemblad 12/2003
>> >
>> > (13+13) C+
>> > Die Stellung ist Remis. BP in 41,5
>> > 1. h4 g5 2. hxg5 d5 3. Th6 d4 4. Tg6 Lh6 5. Tg7 d3 6. g6 dxc2 7. d4
>> > Dd5 8. Lg5 Dxg2 9. Kd2 Dd5 10. e4 Dxa2 11. Df3 De6 12. d5 Sf6 13.
>> > dxe6 Sd5 14. Df6 Sc6 15. f3 Sd8 16. Lb5+ c6 17. Se2 Tg8 18. Txg8+
>> > Lf8 19. Df4 Sf6 20. Th8 Sg8 21. Lf6 Lh6 22. Lg7 Lg5 23. Lf8 Sf6 24.
>> > Tg8 Sd7 25. Lg7+ Sf8 26. Lf6 Lh6 27. Tg7 Sd7 28. Lg5 Sb6 29. Df6 Sd5
>> >  30. Tg8+ Lf8 31. Df4 Sf6 32. Th8 Sg8 33. Lf6 Lh6 34. Lg7 Lg5 35.
>> > Lf8  Sf6 36. Tg8 Sd7 37. Lg7+ Sf8 38. Lf6 Lh6 39. Tg7 Sd7 40. Lg5
>> > Sb6 41.  Df6 Sd5 42. Tg8+ remis






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