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1 problem(s) found in 1925 milliseconds (displaying 1 problem(s)). [PROBID='P1312968'] [download as LaTeX]

1 - P1312968
Andrey Frolkin
Joaquim Crusats

chessproblem.net 26/11/2015
1st-2nd Prize e.a
1st chessproblem.net Composing Tournament
P1312968
(13+12) cooked
Release the position
R: 1. Lf8-g7# b3xSc2! 2. Se3-c2 a4xTb3! 3. Sf5-e3 Ke4-e5 4. Sd1-c3 Ke5-e4 5. Tf3-b3 Ke4-e5 6. Se3-d1 Ke5-e4 7. Tf1-f3 Ke4-e5 8. Sg7-f5 Ke5-e4+ 9. Tf6-f1 a5-a4 10. Sf5-e3 Ke4-e5 11. Se8-g7 Ke5-e4 12. Lg7-f8 Ke4-e5 13. Lh8-g7 Ke5-e4 14. Sg7-e8 Ke4-e5 15. Tf8-f6 Ke5-e4 16. f7-f8=T Ke4-e5 17. f6-f7 Ke5-e4 18. b3-b4 Ke4-e5 19. Se3-f5 Ke5-e4+ 20. f5-f6 Ke4-e5 21. Sc2-e3,~ f7xDe6 22. Df6-e6+, etc.
play all play one stop play next play all
Nikolai Beluchow entdeckte als erster eine NL, in der auf b3 nicht ein wT, sondern ein zweiter wS entschlagen wird. Der Trick besteht darin, zwischenzeitlich einen der wSS auf c7 zwischenzuparken.

Inspiriert durch diesen Cook, schuf Nikolai die Version P1376210, in der die Idee der NL zur alleinigen Lösung wird.
Cook: (Beispielauflösung mri)
R: 1. Lf8-g7 b3xSc2 2. Se3-c2 a4xSb3! 3. Sf5-e3 Ke4-e5 4. Sd1-c3 Ke5-e4 5. Se3-d1 Ke4-e5 6. Sg7-f5 Ke5-e4 7. Sf5-e3 Ke4-e5 8. Sa1-b3 Ke5-e4 9. Sc2-a1 Ke4-e5 10. Se3-c2 Ke5-e4 11. Se8-g7 Ke4-e5 12. Sg7-f5 Ke5-e4 13. Sf5-e3 Ke4-e5 14. Sc7-e8 Ke5-e4 15. Se8-g7 Ke4-e5 16. Lg7-f8 a5-a4 17. Lh8-g7 Ke5-e4 18. Sg7-e8 Ke4-e5 19. Se8-c7 Ke5-e4 20. Sf6-e8 Ke4-e5 21. Sh7-f6 Ke5-e4 22. Sf8-h7 Ke4-e5 23. f7-f8=S Ke5-e4 24. f6-f7 Ke4-e5 25. Se3-f5 Ke5-e4 26. f5-f6 Ke4-e5 27. Sc2-e3 f7xDe6 28. Df6-e6 Te6-d6 29. Se8-g7 Te5-e6 30. Dd6-f6 Te6-e5 31. Dg3-d6 Tf6-e6 32. Db3-g3 Ke5-e4 33. Sa3-c2 Td6-d5 34. Lg2-c6 Tc6-d6 35. Lf1-g2 Tc8-c6 36. Dd1-b3 Kd5-e5 37. Te6-b6 Ta8-c8 38. b6-b7 Lc8-a6 39. Te3-e6 Kc6-d5 40. Sd6-e8 a7-a5 41. a5xDb6 Kc7-c6 42. Sc4-d6 Kd8-c7 43. Se5-c4 Ke8-d8 44. d6-d7 Dd8-b6 45. Th3-e3 c7-c5 46. c5xSd6 d5-d4 47. Sf3-e5 Te6-f6 48. Lb2-h8 Sc4-d6 49. Kf4-g5 Se5-c4 50. Ke3-f4 b7-b5 51. Kf2-e3 Sc6-e5 52. Ke1-f2 Sb8-c6 53. Sg1-f3 Tf6-e6 54. f4-f5 d6-d5 55. Te5-h5 d7-d6 56. g5-g6 h5-h4 57. h4xLg5 Tg6-f6 58. Th1-h3 Tg8-g6 59. Sb1-a3 Th8-g8 60. Te3-e5 Lf6-g5 61. Ta3-e3 g5-g4 62. c4-c5 Lg7-f6 63. a4-a5 g6-g5 64. g5xSh6
Thema des Turniers: "Orthodox retroanalysis where the diagram position has at least one open (i.e., unoccupied) file", hier durch die leere f-Linie realisiert

PR Thomas Volet: "The sole entry that did not involve the Kislyak maneuver (the attractiveness of which as a response to the tourney condition was not anticipated by the judge). This fine composition provides an interesting study in retroscreens on two axes involving a moving target. The result is a highly effective exploitation of the open file concept! Careful interplay of the active units is required throughout the retroplay. In addition, the dense matrix to the West of the Black King is much more resistant to release than might appear at first, thus extending the retroplay in an intriguing postscript."
Henrik Juel: Composers’ solution:
-1.Bf8-g7#-, b3xSc2! -2.Se3-c2 a4xRb3! -3.Sf5-e3 Ke4-e5 -4.Sd1-c3+ Ke5-e4 -5.Rf3-c3 Ke4-e5 -6.Se3-d1Ke5-e4 -7.Rf1-f3 Ke4-e5 -8.Sg7-f5 Ke5-e4+ -9.Rf6-f1 a5-a4 -10.Sf5-e3 Ke4-e5 -11.Se8-g7 Ke5-e4 -12.Bg7-f8 Ke4-e5 -13.Bh8-g7 Ke5-e4 -14.Sg7-e8 Ke4-e5 -15.Rf8-f6 Ke5-e4 -16.f7-f8=R Ke4-e5 -17.f6-f7 Ke5-e4 -18.b3-b4 Ke4-e5 -19.Se3-f5 Ke5-e4+ -20.f5-f6 Ke4-e5 -21.~ f7xQe6 -22.Qf6-e6+, etc.
[Judge: Thomas Volet]
Judge’s comments: The sole entry that did not involve the Kislyak maneuver (the attractiveness of which as a response to the tourney condition was not anticipated by the judge). This fine composition provides an interesting study in retroscreens on two axes involving a moving target. The result is a highly effective exploitation of the open file concept! Careful interplay of the active units is required throughout the retroplay. In addition, the dense matrix to the West of the Black King is much more resistant to release than might appear at first, thus extending the retroplay in an intriguing postscript. (2015-12-04)
Henrik Juel: The stipulated theme was
Orthodox retroanalysis where the diagram position has at least one open (i.e., unoccupied) file
Here the f-file is open (2015-12-04)
comment

Genre: Retro
FEN: 8/1P1Pp1B1/bRBrp1PP/1pprk1KR/1P1p2pp/2N5/2pPP3/8
Input: A.Buchanan, 2015-12-04
Last update: Mario Richter, 2020-05-24 more...
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