[Event "Compositie Federoek,A."]
[Site "?"]
[Date "?"]
[Round "?"]
[White "Praktijk stellingen"]
[Black "TurboDambase"]
[Result "*"]
[GameType "20"]
[Setup "1"]
[FEN "W:W25,27,35,39:B14,17,23,24."]
[PlyCount "18"]

{ In een analyse van Harm Wiersma in de Telegraaf van zaterdag
22-07-2006, ontdekte hij de mogelijkheid van het ontstaan van deze
variant in een partij uit "Park Blitz". Ik heb partijen geselecteerd
uit TurboDambase, waarin die stelling voorkomen. } { Een Compositie
door de Rus Fedoroek,A. die vanaf 1962 regelmatig meedeed aan het
RUS-ch, ontstaat na } 13. 39-33 { (8x) } ( { Wit mist remise door }
13. 39-34 { (3x) } 24-29 { (3x) } 14. 35-30 { (4x) Ook deze 4
partijen worden getoond } 29x40 { Een 6-stukken Z+ eindspel ontstaat
na } 15. 30-24 { (2x) } ( { Een 6-stukken remise eindspel ontstaat na
} 15. 27-22 { (2x) } 17x28 { (-0.04/19) } ) { } 15... 23-29 { (2x) }
16. 24x33 { (-9.99/19) } ) { } 13... 14-19 { (7x +1x ten onrechte
remise geaccepteerd) } 14. 35-30 { (8x) Retrogade variant Dijk,van,G.
- Roozenburg,P. 0-2 NLD-ch, 28-03-1954 } ( { Flits Z+ na } 14. 25-20
{ (0x) } 24x15 15. 35-30 15-20 16. 30-25 20-24 ) 14... 24x35 { }
15. 25-20 35-40 { (7x) } 16. 20-15 40-44 { } 17. 15-10 44-50 { }
18. 33-29 { (6x +1x opgegeven) } 23x34 { 6-stukken Z+ eindspel } { In
enkele partijen werd nog doorgespeeld } 19. 10-4 { (5x) } ( { Z+
direct na } 19. 10-5 { (1x) } 19-23 { (1x opgegeven) } ) 19... 50-45
{ (4x) } $1 ( { Zwart mist de winst na } 19... 19-23 { (1x remise) }
$2 20. 4-10 { (1x) } $1 ) 20. 27-22 { (3x) } ( { Flits Z+ na }
20. 27-21 17x26 { (0x Z+ in 33 ply) } ) 20... 17x28 { (3x Z+ in 27
ply) } { } 21. 4-31 { (2x Z+ in 26 ply) } ( 21. 4-27 { (1x Z+ in 26
ply) } 34-39 22. 27-49 19-23 { (1x Z+ in 23 ply maar al opgegeven) }
) 21... 34-39 { (2x Z+ in 25 ply maar al opgegeven) } *

[Event "NLD-chT 1b"]
[Site "?"]
[Date "1977.09.03"]
[Round "?"]
[White "Ballegooijen,van,M."]
[Black "Rooij,de,L."]
[Result "0-1"]
[GameType "20"]
[Setup "1"]
[FEN "W:W25,27,35,39:B14,17,23,24."]
[WhiteTime "2.22"]
[BlackTime "2.07"]
[PlyCount "20"]

{ Een Compositie door de Rus Fedoroek,A. die vanaf 1962 regelmatig
meedeed aan het RUS-ch, ontstaat na } 54. 39-33 { (8x) } ( { Wit mist
remise } 54. 39-34 $902 24-29 55. 35-30 29x40 56. 27-22 17x28 {
(-0.04/19) } ) 54... 14-19 55. 35-30 { (8x) Retrogade variant
Dijk,van,G. - Roozenburg,P. 0-2 NLD-ch, 28-03-1954 } 24x35 56. 25-20
35-40 57. 20-15 40-44 58. 15-10 44-50 59. 33-29 23x34 60. 10-4 50-45
61. 27-22 17x28 62. 4-27 34-39 63. 27-49 19-23 0-1

[Event "VAD paas"]
[Site "?"]
[Date "1981.04.19"]
[Round "?"]
[White "Schippers,T."]
[Black "Oudshoorn,P."]
[Result "0-1"]
[GameType "20"]
[Setup "1"]
[FEN "W:W25,31,33,35:B14,17,23,24."]
[WhiteTime "2.07"]
[BlackTime "2.13"]
[PlyCount "18"]

{ Een Compositie door de Rus Fedoroek,A. die vanaf 1962 regelmatig
meedeed aan het RUS-ch, ontstaat na } 56. 31-27 { (8x) } ( { Wit mist
remise } 56. 31-26 $902 14-19 57. 35-30 24x35 58. 25-20 35-40
59. 20-15 40-44 60. 15-10 44-50 61. 10-4 50x28 { (-0.04/19) }
62. 4-27 28-33 63. 27-21 17-22 64. 21-8 33-24 65. 8-12 23-28
66. 12-23 ) 56... 14-19 57. 35-30 { (8x) Retrogade variant
Dijk,van,G. - Roozenburg,P. 0-2 NLD-ch, 28-03-1954 } 24x35 58. 25-20
35-40 59. 20-15 40-44 60. 15-10 44-50 61. 33-29 23x34 62. 10-4 50-45
63. 27-22 17x28 64. 4-31 34-39 0-1

[Event "NLD-chT"]
[Site "?"]
[Date "1995.03.11"]
[Round "?"]
[White "Thijssen,K."]
[Black "Hoekman,H."]
[Result "1-0"]
[GameType "20"]
[Setup "1"]
[FEN "B:W27,28,34,37:B12,16,24,26."]
[WhiteTime "1.58"]
[BlackTime "2.10"]
[PlyCount "10"]

{ Een Compositie door de Rus Fedoroek,A. die vanaf 1962 regelmatig
meedeed aan het RUS-ch, ontstaat na } 54... 12-18 { (8x) } ( { Zwart
mist remise } 54... 12-17 $902 55. 27-22 16-21 ( 55... 24-29
56. 34x23 16-21 57. 22x11 { (0.04;9.99/15) } ) 56. 22x11 24-29 { (2x)
} ( { W+ na } 56... 21-27 { (2x) } 57. 28-22 27x18 { (9.99/19) } )
57. 34x23 { (0.04/19) } ) 55. 37-32 16-21 { (8x) Retrogade variant
Dijk,van,G. - Roozenburg,P. 0-2 NLD-ch, 28-03-1954 } 56. 27x16 26-31
57. 16-11 31-36 58. 11-7 36-41 59. 7-1 1-0

[Event "NLD-chT 2c"]
[Site "?"]
[Date "1995.03.11"]
[Round "?"]
[White "Rijs,W."]
[Black "Stoorvogel,A."]
[Result "1-0"]
[GameType "20"]
[Setup "1"]
[FEN "B:W27,28,34,37:B12,16,24,26."]
[WhiteTime "1.17"]
[BlackTime "2.41"]
[PlyCount "18"]

{ Een Compositie door de Rus Fedoroek,A. die vanaf 1962 regelmatig
meedeed aan het RUS-ch, ontstaat na } 58... 12-18 { (8x) } ( { Zwart
mist remise } 58... 12-17 $902 59. 27-22 16-21 60. 22x11 24-29 { (2x)
} ( { W+ na } 60... 21-27 { (2x) } 61. 28-22 27x18 { (9.99/19) } )
61. 34x23 { (0.04;9.99/18) } ) 59. 37-32 16-21 { (8x) Retrogade
variant Dijk,van,G. - Roozenburg,P. 0-2 NLD-ch, 28-03-1954 }
60. 27x16 26-31 61. 16-11 31-36 62. 11-7 36-41 63. 7-1 18-22
64. 28x17 41-47 65. 1-6 24-29 66. 34x23 47-20 67. 17-12 1-0

[Event "Nijmegen"]
[Site "?"]
[Date "2001.07.23"]
[Round "?"]
[White "Kosior,A."]
[Black "Mourik,van,A."]
[Result "1/2-1/2"]
[GameType "20"]
[Setup "1"]
[FEN "W:W25,32,33,35,36:B14,17,22,23,24."]
[WhiteTime "2.22"]
[BlackTime "2.23"]
[PlyCount "4"]

{ Een Compositie door de Rus Fedoroek,A. die vanaf 1962 regelmatig
meedeed aan het RUS-ch, ontstaat na } 61. 32-27 ( { Wit mist remise }
61. 36-31 { (1x) } $902 14-19 { (1x) } ( 61... 17-21 { (1x) }
62. 31-26 23-29 63. 26x28 29x27 { (0.02/19) } ) 62. 25-20 { (0x) }
24x15 63. 35-30 15-20 64. 30-25 20-24 65. 32-27 23-29 66. 27x18 29x38
67. 31-27 17-22 ( 67... 38-43 68. 27-22 17x28 { (-0.04/19) } ) (
69... 38-42 70. 27-22 17x28 { (-0.04/19) } ) 68. 18-12 22x31 {
(-0.04/19) } ) 61... 22x31 62. 36x27 { (8x) Zwart accepteerde remise
in een gewonnen stand } { Z+ na } 14-19 1/2-1/2

[Event "Nijmegen"]
[Site "?"]
[Date "2002.07.25"]
[Round "?"]
[White "Swart,P."]
[Black "Huls,J."]
[Result "1/2-1/2"]
[GameType "20"]
[Setup "1"]
[FEN "W:W25,31,33,35:B14,17,23,24."]
[WhiteTime "1.35"]
[BlackTime "2.00"]
[PlyCount "5"]

{ Een Compositie door de Rus Fedoroek,A. die vanaf 1962 regelmatig
meedeed aan het RUS-ch, ontstaat na } 51. 31-27 { (8x) } ( { Wit mist
remise } 51. 31-26 $902 17-22 52. 26-21 23-28 53. 21-16 28x39
54. 16-11 39-43 55. 11-7 43-48 56. 7-1 48-37 57. 1-34 22-27 58. 34-43
37-32 ( 58... 27-31 $2 59. 43-38 $1 ) 59. 43-49 14-19 60. 35-30 24x35
{ (-0.04/19) } ) 51... 14-19 52. 35-30 { (8x) Retrogade variant
Dijk,van,G. - Roozenburg,P. 0-2 NLD-ch, 28-03-1954 } 24x35 53. 25-20
1/2-1/2

[Event "Salou"]
[Site "?"]
[Date "2002.05.12"]
[Round "?"]
[White "Borkowa,M."]
[Black "Nijmeijer,J."]
[Result "1/2-1/2"]
[GameType "20"]
[Setup "1"]
[FEN "W:W25,32,33,35,36:B14,17,22,23,24."]
[WhiteTime "2.19"]
[BlackTime "2.19"]
[PlyCount "17"]

{ Een Compositie door de Rus Fedoroek,A. die vanaf 1962 regelmatig
meedeed aan het RUS-ch, ontstaat na } 59. 32-27 ( { Wit mist remise }
59. 36-31 { (1x) } $902 14-19 60. 25-20 24x15 61. 35-30 15-20
62. 30-25 ) 59... 22x31 60. 36x27 { (8x) } 14-19 61. 35-30 { (8x)
Retrogade variant Dijk,van,G. - Roozenburg,P. 0-2 NLD-ch, 28-03-1954
} 24x35 62. 25-20 35-40 63. 20-15 40-44 64. 15-10 44-50 65. 33-29
23x34 66. 10-4 19-23 $2 ( { Zwart mist winst } 66... 50-45 { (4x) }
$902 67. 27-22 { (3x Z+ in 28 ply) } ) 67. 4-10 $1 1/2-1/2

[Event "ZEE-ch"]
[Site "?"]
[Date "2004.02.04"]
[Round "?"]
[White "Provoost,B."]
[Black "Walraven,M."]
[Result "1-0"]
[GameType "20"]
[Setup "1"]
[FEN "B:W27,28,34,37:B12,16,24,26."]
[WhiteTime "2.35"]
[BlackTime "2.59"]
[PlyCount "14"]

{ Een Compositie door de Rus Fedoroek,A. die vanaf 1962 regelmatig
meedeed aan het RUS-ch, ontstaat na } 57... 12-18 ( { Zwart mist
remise } 57... 12-17 $902 58. 27-22 16-21 59. 22x11 24-29 { (2x) } (
{ W+ na } 59... 21-27 { (2x) } 60. 28-22 27x18 { (9.99/19) } )
60. 34x23 { (0.04/19) } ) 58. 37-32 16-21 { (8x) Retrogade variant
Dijk,van,G. - Roozenburg,P. 0-2 NLD-ch, 28-03-1954 } 59. 27x16 26-31
60. 16-11 31-36 61. 11-7 36-41 62. 7-1 18-22 63. 28x17 41-47 64. 1-6
1-0

[Event "NLD-ch"]
[Site "?"]
[Date "1954.03.28"]
[Round "?"]
[White "Dijk,van,G."]
[Black "Roozenburg,P."]
[Result "0-1"]
[GameType "20"]
[Setup "1"]
[FEN "W:W25,31,38,40:B12,14,18,24."]
[PlyCount "18"]

57. 38-33 18-23 58. 40-34 ( { Een Compositie door de Rus Fedoroek,A.
die vanaf 1962 regelmatig meedeed aan het RUS-ch, ontstaat na }
58. 40-35 12-17 59. 31-27 ) 58... 12-17 59. 31-27 14-19 60. 34-30 {
(8x) Retrogade variant Dijk,van,G. - Roozenburg,P. 0-2 NLD-ch,
28-03-1954 } ( 60. 25-20 $902 24x15 61. 27-21 17x26 {
(-0.04;-9.99/19) } ) 60... 24x35 61. 25-20 35-40 62. 20-15 40-44
63. 15-10 44-50 64. 33-29 23x34 65. 10-5 ( 65. 10-4 $902 19-23
66. 4-13 23-29 67. 27-22 17x28 68. 13-19 28-33 69. 19-32 {
(-2.50;-9.99/13) } ) 65... 19-23 0-1

[Event "NLD-chA sfc"]
[Site "?"]
[Date "1980.04.12"]
[Round "?"]
[White "Tak,van der,C."]
[Black "Kalk,H."]
[Result "1-0"]
[GameType "20"]
[Setup "1"]
[FEN "W:W27,28,29,30,33,37,38:B8,14,15,16,17,18,26."]
[WhiteTime "2.00"]
[BlackTime "2.08"]
[PlyCount "23"]

51. 30-25 8-13 52. 29-23 18x29 53. 33x24 14-19 54. 38-33 ( 54. 38-32
$902 19x30 55. 25x34 15-20 56. 34-29 20-25 57. 29-24 13-19 58. 24x13
25-30 59. 13-8 30-35 60. 8-2 35-40 61. 2-35 40-45 62. 35-30 26-31
63. 27x36 17-21 { (0.91;0.06/10) } ) 54... 19x30 55. 25x34 13-19
56. 33-29 19-24 57. 29x20 15x24 58. 27-22 16-21 { (4x) Retrogade
variant } 59. 22x11 21-27 ( 59... 24-29 $902 60. 34x23 {
(0.04;9.99/19) } ) 60. 28-22 27x18 61. 11-7 18-22 62. 7-2 1-0

[Event "NLD-chT 2a"]
[Site "?"]
[Date "1997.01.18"]
[Round "?"]
[White "Schuur,Albert"]
[Black "Olde Hanhof,P."]
[Result "1/2-1/2"]
[GameType "20"]
[Setup "1"]
[FEN "W:W25,31,35,38,40:B9,19,22,23,24."]
[WhiteTime "2.24"]
[BlackTime "2.35"]
[PlyCount "20"]

51. 38-32 9-14 52. 32-27 24-29 53. 27x18 23x12 54. 35-30 12-17
55. 31-27 19-23 56. 40-34 { (4x) Retrogade variant } 29x40 57. 27-22
17x28 58. 30-24 40-44 59. 24-20 14-19 60. 20-15 44-49 1/2-1/2

[Event "The Hague"]
[Site "?"]
[Date "2002.07.15"]
[Round "?"]
[White "Meeren,B."]
[Black "Drunen,van,M."]
[Result "1/2-1/2"]
[GameType "20"]
[Setup "1"]
[FEN "W:W25,26,27,31,35,38,40:B12,14,16,18,19,24,28."]
[WhiteTime "1.20"]
[BlackTime "2.52"]
[PlyCount "38"]

51. 38-32 28x37 52. 31x42 19-23 53. 26-21 12-17 54. 21x12 18x7
55. 27-22 7-11 56. 42-38 11-17 57. 22x11 16x7 58. 38-32 7-12
59. 40-34 12-17 60. 32-27 24-29 61. 35-30 { (4x) Retrogade variant }
29x40 62. 27-22 17x28 63. 30-24 40-44 64. 24-20 14-19 65. 20-15 23-29
66. 25-20 19-23 67. 20-14 44-49 68. 14-9 49-35 69. 15-10 28-32
1/2-1/2

[Event "Salou"]
[Site "?"]
[Date "2003.05.25"]
[Round "?"]
[White "Kosior,A."]
[Black "Hol,G."]
[Result "1-0"]
[GameType "20"]
[Setup "1"]
[FEN "W:W27,33,39,48,50:B6,8,14,24,26."]
[WhiteTime "1.54"]
[BlackTime "2.17"]
[PlyCount "23"]

51. 50-44 14-19 52. 33-29 ( 52. 39-34 $902 19-23 53. 48-42 6-11
54. 44-40 8-12 55. 42-37 12-18 { (0.61;0.04/10) } ) 52... 24x33
53. 39x28 8-12 54. 44-39 6-11 55. 39-34 12-17 56. 48-42 11-16
57. 42-37 19-24 58. 27-22 16-21 { (4x) Retrogade variant } 59. 22x11
21-27 ( 59... 24-29 $902 60. 34x23 { (0.04;9.99/19) } ) 60. 28-22
27x18 61. 11-7 18-22 62. 7-2 1-0