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1 problem(s) found in 8403 milliseconds (displaying 1 problem(s)). [COMMENTDATE>=20220810 AND G='Retro' AND NOT K='Wer ist am Zug?' AND S='chessproblem.net'] [download as LaTeX]

1 - P1312964
Michel Caillaud
chessproblem.net 26/11/2015
1st-2nd Prize e.a
1st chessproblem.net Composing Tournament
P1312964
(10+13)
What were the promotion moves?
R: 1. Db1-d1 Ta8-d8 2. Db8-b1 Ta1-a8 3. Dc8-b8 a2-a1=T 4. Db8-c8 a3-a2 5. Dc8-b8 a4-a3 6. Db8-c8 a5-a4 7. b7-b8=D a7-a5 8. a6xSb7 Sc5-b7 9. a5-a6 Se4-c5 10. a4-a5 Sg5-e4 11. a3-a4 Sh3-g5 12. a2-a3 Sg1-h3 13. Tf1-f2 Lf2-e1 14. Tb1-f1 Le3-f2 15. Tf2-g2 Kg2-h1 16. Tf1-f2+ Kh3-g2 17. f2-f3 Sf3-g1 18. Tb8-b1 Sd4-f3 19. b7-b8=T Sb3-d4 20. Tg1-f1 Sc1-b3 21. b6-b7 c2-c1=S 22. b5-b6 c3-c2 23. b4-b5 c4-c3 24. Th1-g1 b5xLc4 25. Ld5-c4 Kg4-h3 26. Lg2-d5 Lc5-e3 27. Lf1-g2 Kf4-g4 28. g2-g3+ Sg3-h5 29. Kh5-g6 Se4-g3+
play all play one stop play next play all
Henrik Juel: Composer’s solution:
a2-a1=R; n.b7-b8=Q a7-a5 n-1.a6×Nb7 Nc5(d6)-b7 n-2.a5-a6 Ne4-c5(d6) n-3.a4-a5 Ng5-e4 n-4.a3-a4 Nh3-g1 n-5.a2-a3 Ng1-h3 n-6.Rf2-f1 Bf2-e1 just in time. then b7-b8=R; c2-c1=N; b4-b5; b5×Bc4! (precisely; not b7×Bc6?? or b2-b3?? b3×Bc2).and Bf1-c4; g2-g3; Ng3-h5!; Bc8-g8; c7-c8=B! Five promotions: three white : b7-b8=Q, b7-b8=R and c7-c8=B and two black : a2-a1=R and c2-c1=N.
[The judge was Thomas Volet]
Judge’s comments: What is a judge to do with a composition containing so many features valued by that judge? Enjoy it, of course! An elegant arid setting (without obtrusive force or King in check) conceals the depth of the retroplay. The precise timing represents the best exploitation of the Kislyak theme. In addition to his ever-present clarity of logic, Michel often gives us much humor in his compositions. Naturally the Bg8 is not the one that started on f1! The slant pawn on h2 shows Michel’s long memory for tournament stipulations, and thankfully, spares the audience from inventory tedium that we all experience but are reluctant to acknowledge. A fun composition, and what more can be asked? (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 a-,b-,c-files are open (2015-12-04)
Henrik Juel: Solution by Andrej Frolkin
Retract: -1.Qb1-d1 (any side can start the retraction; this is unessential here) Ra8-d8 -2.Qb8-b1 Ra1-a8 -3.Qc8-b8 a2-a1=R -4.Qb8-c8 a3-a2 -5.Qc8-b8 a4-a3 -6.Qb8-c8 a5-a4 -7.b7-b8=Q a7-a5 -8.a6xSb7 Sc5-b7 -9.a5-a6 Se4-c5 -10.a4-a5 Sg5-e4 -11.a3-a4 Sh3-g5 -12.a2-a3 Sg1-h3 -13.Rf1-f2 Bf2-e1 -14.Rb1-f1 Be3-f2 -15.Rf2-g2 Kg2-h1 -16.Rf1-f2+ Kh3-g2 -17.f2-f3 Sf3-g1 -18.Rb8-b1 Sd4-f3 -19.b7-b8=R Sb3-d4 -20.Rg1-f1 Sc1-b3 -21.b6-b7 c2-c1=S
-22.b5-b6 c3-c2 -23.b4-b5 c4-c3 -24.Rh1-g1 b5xBc4 25.Bd5-c4 Kg4-h3 -26.Bg2-d5 Bc5-e3 -27.Bf1-g2 Kf4-g4 -28.g2-g3+ Sg3-h5 -29.Kh5-g6 Se4-g3+; later, Bg8 to c8, c7-c8=B
. (2015-12-04)
James Malcom: Optimal PG: 1. Nc3 Nc6 2. Ne4 Nf6 3. Nd6+ cxd6 4. h4 Qa5 5. b4 Qg5 6. Bb2 Nh5 7. Be5 dxe5 8. Eb1 b5 9. Rb3 Bb7 10. Qa1 e6 11. Qd4 f6 12. Qf4 exf4 13. Rg3 fxg3 14. Nf3 Ne5 15. Nh2 Be4 16. c4 Bg6 17. c5 gxh2 18. c6 Bc5 19. Kd1 Ke7 20. hxg5 Raf8 21. c7 Be8 22. Kc2 Kd6 23. c8=B Rf7 24. Bb7 Re7 25. Be4 Nf7 26. Kd3 h6 27. Bh7 Bd4 28. Ke4 Ng3+ 29. Kf4 Ne4 30. Kg4 Ke5 31. Kh5 Kf4 32. Bg8 Rh7 33. g6 Bc5 34. gxh7 Ng3+ 35. Kg6 Nh5 36. g3+ Kg4 37. Bg2 Bd4 38. Bd5 Kh3 39. Bc4 bxc4 40. b5 c3 41. b6 c2 42. b7 c1=N 43. b8=R Nd3 44. Rf1 Ne1 45. Rb1 Nf3 46. Rbe1 Ng1 47. f3 Kg2 48. Rf2+ Kh1 49. Rg2 Bf2 50. Rf1 Be1 51. Rff2 Nh3 52. a3 Nhg5 53. a4 Ne4 54. a5 Nc5 55. a6 Nb7 56. axb7 a5 57. b8=Q a4 58. Qb1 a3 59. Qd1 a2 60. Qc2 a1=R 61. Qc1 Ra8 62. Qd1 Rd8 (2022-11-12)
comment
Keywords: Kislyak Theme
Genre: Retro
FEN: 3rb1B1/3prnpP/4ppKp/7n/8/5PP1/3PPRRp/3Qb2k
Reprints: Kislyak Theme: New Developments , p. 5, 2/12/2015
Input: A.Buchanan, 2015-12-04
Last update: James Malcom, 2022-11-11 more...
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