[Retros] Cook in Thema Danicum

[Ryan M.]

8870 - Per Grevlund
Dedicated to Jan Mortensen's 70th birthday
2NQk3/r7/2P1RK2/B7/8/8/2P5/8 (7+2)

Last 4 halfmoves? (Monochromatic chess)

The problem is cooked: -1.Qe7-d8 and now black may retract Kf7-e8 or Rc7-a7
as the following gamescore shows.

1. f4 e5 2. a4 exf4 3. Ra3 b5 4. Rg3 fxg3 5. axb5 gxh2 6. g4 h5 7. gxh5 g5
8. hxg6 hxg1=R 9. Rh3 Rg3 10. e4 Ra3 11. d4 d5 12. Qg4 Bxg4 13. gxf7+ Kd7
14. fxg8=R Bd6 15. Rg6 Be5 16. exd5 c5 17. dxc6+ Ke8 18. Bg2 Bxh3 19. Kf2
Bxg2 20. Be3 Qd6 21. dxe5 Qb4 22. Rg4 Qxb2 23. Rg6 Qb4 24. Rg4 Qd6 25. Kg3
Rh6 26. Kf4 Qc7 27. Kg5 Rd6 28. exd6 Bd5 29. dxc7 a5 30. bxa6 Ba2 31. Kf6
Bxb1 32. Bd2 Ba2 33. Be1 Be6 34. Bd2 Bc8 35. Be1 Bb7 36. axb7 R3a7
37.cxb8Q Ra5 38.Qd6 Rc8 39.bxc8N Ra7 40.Qe7 Rc7 41.Re4 Ra7 42.Re6 Rc7 43.Ba5
Ra7 44.Qd8+.

Black could have also played Kf7-e8 for waiting moves at the end.

-Ryan McCracken