Die Schwalbe

22 problem(s) found in 4040 milliseconds (displaying 22 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT K='Eck zu Eck' AND S='RIFACE'] [download as LaTeX]

1 - P1305230
Thierry Le Gleuher
1 RIFACE 2015
P1305230
(11+1)
Ajouter des pièces.
+wSb2d2 +wLc4
R: 1. Dd1-c2+ Kc2-c3 etc
play all play one stop play next play all
A.Buchanan: How about wLa1 instead? (2020-10-06)
Henrik Juel: Yes, that would improve the economy slightly (2020-10-06)
Ladislav Packa: wBa1 is illegal... (2020-10-07)
A.Buchanan: Hi Ladislav why is wLa1 illegal, please? That was essentially my question before (2020-10-07)
Mario Richter: wLa1 instead of wDa1 is of course legal too: one of the dark-squared wBishops unpromotes on h8, one wQueen on g8. Black pawns g7+h7 let the wPawns g2+h2 pass by cross-capturing the 2 original wRooks. (2020-10-07)
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comment
Keywords: Add pieces
Genre: Retro
FEN: 8/P7/P7/P1Q5/P3K3/P1k5/P1Q5/Q3B3
Input: A.Buchanan, 2015-07-08
Last update: A.Buchanan, 2023-04-13 more...
2 - P1305233
Alexandre Leroux
4 Retro Championnat de France RIFACE 2015
P1305233
(2+1) C+
KBP in 7.0
Ergänze die fehlenden Steine!
a) 1. a4 Sf6 2. a5 Se4 3. a6 Sxd2 4. Kxd2 h5 5. Kc3 Th6 6. Kb4 Te6 7. Ka5 Te4
play all play one stop play next play all
Originalforderung: Ajouter des pieces pour avoir une PCPJ en 7,0 Coups
Henrik Juel: Given the final position, the proof game is C+ by Euclide 1.01 (2015-07-08)
paul: Easily verified by Jacobi with the code: stipulation PG 7 pieces white Ka5 Pa6 black Re4 AddPieces (2021-07-06)
A.Buchanan: An essential linking word in the author's stipulation has been lost in translation: "Ajouter des pieces *pour* avoir une PCPJ en 7,0 Coups." I'm glad that on this occasion the Originalforderung was retained, but can we use a German template for these which is something like "Ergänze die fehlenden Steine um ein KBP in 7,0 zu haben". In English it would be "Add the missing pieces for an SPG in 7.0." (2021-07-07)
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comment
Keywords: Unique Proof Game, Add pieces, Constrained problem
Genre: Retro
Computer test: rawbats, jacobi & Euclide
FEN: 8/8/P7/K7/4r3/8/8/8
Reprints: Phénix 2015
12 Phénix 296-297, p. 11536, 05-06/2019
1 Die Schwalbe 301, p. 440, 02/2020
Input: A.Buchanan, 2015-07-08
Last update: A.Buchanan, 2023-04-13 more...
3 - P1347210
Pascal Wassong
Thierry Le Gleuher
Axel Gilbert

RIFACE 2017
2nd Prize
P1347210
(16+16) C+
KBP in 16,5
Weißer Längstzüger
Weißer Ohneschlag
1. Sf3 Sc6 2. Sd4 Se5 3. Sc6 a6 4. Sb8 c6 5. Sa3 Db6 6. Sc4 Db3 7. Sa5 Sc4 8. a4 Db5 9. Sb3 g5 10. Sc5 Lg7 11. Se4 Le5 12. Sc3 Lc7 13. Sb1 d6 14. Sd7 Sf6 15. Se5 0-0 16. Sf3 Kh8 17. Sg1
play all play one stop play next play all
Joost de Heer: Solution: 1.Sf3 Sc6 2.Sd4 Se5 3.Sc6 a6 4.Sb8 c6 5.Sa3 Qb6 6.Sc4 Qb3 7.Sa5 Sc4 8.a4 Qb5 9.Sb3 g5 10.Sc5 Bg7 11.Se4 Be5 12.Sc3 Bc7 13.Sb1 d6 14.Sd7 Sf6 15.Se5 O-O 16.Sf3 Kh8 17.Sg1 (2021-01-04)
comment
Keywords: Unique Proof Game, No-capture chess (w), Maximummer (w), RIFACE Retro Composition Tourney (2017)
Genre: Retro, Fairies
FEN: r1b2r1k/1pb1pp1p/p1pp1n2/1q4p1/P1n5/8/1PPPPPPP/RNBQKBNR
Reprints: Phénix 279-280, p. 10966, 11-12/2017
Input: A.Buchanan, 2018-02-24
Last update: Gerd Wilts, 2021-01-04 more...
4 - P1347216
Philippe Rouzaud
RIFACE 2017
1. Lob
P1347216
(12+16) C+
KBP in 15,0
Weißer Längstzüger
Weißer Ohneschlag
paul: 1.Sa3 d5 2.Sc4 d×c4 3.Sf3 Qd3 4.Sd4 Kd8 5.Sb3 c×b3
6.h4 b×c2 7.Rh3 c×d1=B 8.Re3 Ba4 9.Re6 Be8 10.Ra6 Qd7
11.Rh6 g6 12.a4 Bg7 13.Ra3 Be5 14.Rh3 Bg3 15.Rh1 Bh2 (2021-08-19)
comment
Keywords: Unique Proof Game, No-capture chess (w), Maximummer (w), Non-standard material (l), RIFACE Retro Composition Tourney (2017)
Genre: Retro, Fairies
FEN: rnbkb1nr/pppqpp1p/6pR/8/P6P/8/1P1PPPPb/2B1KB1R
Reprints: Phénix 279-280, p. 10967, 11-12/2017
Input: A.Buchanan, 2018-02-24
Last update: A.Buchanan, 2020-10-05 more...
5 - P1347219
François Labelle
RIFACE 2017
3. Lob
P1347219
(16+16) C+
Move a black rook to c2 in 6 moves
Längstzüger
Schwarzer Ohneschlag
1. c4 Sc6 2. Dc2 Sd4 3. Dxh7 Sb5 4. Dh4 Th5 5. cxb5 Tc5 6. Dg5 Tc2
play all play one stop play next play all
Joost de Heer: 1. c4 Sc6 2. Qc2 Sd4 3. Qh7 Sb5 4. Qh4 Rh5 5. cxb5 Rc5 6. Qg5 Rc2 (2021-01-04)
comment
Keywords: Synthetic problem, No-capture chess (s), Maximummer, RIFACE Retro Composition Tourney (2017), Homebase
Genre: Retro, Fairies
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR
Reprints: Phénix 279-280, p. 10968, 11-12/2017
Input: A.Buchanan, 2018-02-24
Last update: James Malcom, 2023-07-04 more...
6 - P1355829
Michel Caillaud
R3 Retro Championnat de France RIFACE 20/05/2018
P1355829
(8+6)
-2 & #1
Proca Retractor
Henrik Juel: -1.Td1? thr. -2.0-0-0, 1.Tb8# fails on -1... Lf1xPf2!,
showing that Black has promoted f2-f1=L, and wK has moved
-1.Td1xLh1 any -2.0-0-0, 1.Tb8#
-1... Lf1xPf2?? is now illegal, as it would entail six captures by [Pc7,e7], which is one too many, because [Lc1,f1] were captured by officers (2018-10-03)
Mario Richter: Another try is R: 1. Th4xTh1? (2018-10-04)
Henrik Juel: Mario's try would permit Black to mate, another way to thwart the white aim of mating:
R: 1.Th4xTh1?? Lf1-g2+ and 1... Lh3#
The entire stipulation should read: -2 & #1, Proca retractor
to make the forward stipulation clear (2021-03-03)
A.Buchanan: @Henrik The stipulation always was correctly input, but for some reason did not display properly. Thanks for spotting. I jiggled it and it now mysteriously is willing to display properly! (2021-03-04)
comment
Keywords: Defensive Retractor, Type Proca
Genre: Retro
FEN: k7/PR1p1ppp/8/8/8/8/1PPPP1b1/2K4R
Input: A.Buchanan, 2018-10-03
Last update: A.Buchanan, 2021-03-04 more...
7 - P1380663
Pascal Wassong
RIFACE 2016
1st prize
P1380663
(15+16) C+
BP in genau 9.5
vertikaler Zylinder
1. d4 Sf6 2. Lh6 Tg8 3. e3 Ta8-h8 4. Da6 Sxa6 5. Sd2 Tb8 6. 0-0-0 Tba8 7. Kb1 Sb8 8. La6 Tgh8 9. Sf1 Sg8 10. Le1
play all play one stop play next play all
Henrik Juel: C+ Jacobi 0.7.5
1.d4 Sf6 2.Bh6 Rg8 3.e3 Rah8 4.Qa6 Sxa6 5.Sd2 Rb8 6.O-O-O Rba8 7.Kb1 Sb8 8.Ba6 Rgh8 9.Sf1 Sg8 10.Be1
On a standard board Black would have made an even number of moves; not so here, with Ra8-h8-b8-a8 (2020-10-05)
A.Buchanan: This has exactly 200 solutions as a PG in 8.5, for example 1.d4 Sf6 2.Sd2 Sd5 3.e3 Sc3 4.Ba6 Sxd1 5.Sf1 Sc3 6.Bd2 Se4 7.O-O-O Sf6 8.Kb1 Sg8 9.Be1. It's restored to soundness if "genau" is stuck in the stipulation. (2021-06-10)
comment
Keywords: Unique Proof Game, Vertical Cylinder, Homebase (s), RIFACE Retro Composition Tourney (2016), Initial Game Array (s)
Genre: Retro, Fairies
Computer test: C+ Jacobi 0.7.5 but shorter BPs exist
FEN: rnbqkbnr/pppppppp/B7/8/3P4/4P3/PPP2PPP/1K1RBNNR
Reprints: II Phénix 310-311, p. 12121, 09-10/2020
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2021-06-10 more...
8 - P1380664
Michel Caillaud
RIFACE 2016
2nd prize
P1380664
(15+15) C+
BP in 7.5
vertikaler Zylinder
more ...
comment
Keywords: Unique Proof Game, Vertical Cylinder, RIFACE Retro Composition Tourney (2016)
Genre: Retro, Fairies
Computer test: C+ Jacobi
FEN: r1bq1bnr/ppppp1pp/k3R3/6n1/7P/8/PPPP1PP1/RNBQKBN1
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2021-06-09 more...
9 - P1380665
Michel Caillaud
Philippe Rouzaud

RIFACE 2016
1st honourable mention
P1380665
(14+15) cooked
BP in 15.0
vertikaler Zylinder
Henrik Juel: Jacobi 0.7.5 was too slow (for me) (2020-10-05)
Michel Caillaud: cooked (2020-10-05)
paul: Author's solution: 1.d4 c6 2.Bf4 Qb6 3.Bc7 a5 4.f4 h5 5.Kf2 Rh6 6.Kg3 a4+ 7.h4 a×h3 e.p. 8.Kh2 h×g2 9.Sh3 g1=S 10.c4 Sf3 11.e×f3 Rd6 12.Be2 g6 13.Qf1 Be1 14.Rg1 Sh6 15.Rah1 0-0-0-0. But cooked with classical castling: 1.d4 c6 2.Bf4 Qb6 3.Bc7 a5 4.f4 Ra6 5.Kf2 Rd6 6.Kg3 a4+ 7.h4 a×h3 e.p. 8.Kh2 h×g2 9.Sh3 g1=S 10.c4 Sf3 11.e×f3 g6 12.Be2 h5 13.Qf1 Be1 14.Rg1 Sh6 15.Rah1 0-0. (2021-08-19)
comment
Keywords: Unique Proof Game, Vertical Cylinder, RIFACE Retro Composition Tourney (2016)
Genre: Retro, Fairies
FEN: 1nb2rk1/1pBppp2/1qpr2pn/7p/2PP1P2/5P1N/PP2B2K/1N2bQRR
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2021-06-09 more...
10 - P1380666
Thierry Le Gleuher
Pascal Wassong
Jacques Dupin

RIFACE 2016
2nd honourable mention
P1380666
(14+15) C+
BP in 8.0
vertikaler Zylinder
Henrik Juel: C+ Jacobi 0.7.5
1.Sf3 b5 2.Sh4 Bf3 3.gxf3 b4 4.Bc6 dxc6 5.h3 Qd6 6.Rh2 Qxh2 7.Sg2 Qd6 8.O-O-O-O Qd8
Looks like kingside castling, but is loong castling with [Ra1] (2020-10-05)
comment
Keywords: Unique Proof Game, Vertical Cylinder, RIFACE Retro Composition Tourney (2016)
Genre: Retro, Fairies
Computer test: C+ Jacobi v0.7.5 & no shorter solution -0.5,-1.0,-1.5
FEN: rn1qkbnr/p1p1pppp/2p5/8/1p6/5P1P/PPPPPPN1/1NBQ1RK1
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2021-06-10 more...
11 - P1380667
Thierry Le Gleuher
RIFACE 2016
3rd honourable mention
P1380667
(15+13) C+
BP in 9.0
vertikaler Zylindre
1. Sc3 g5 2. Sd5 g4 3. Sxe7 g3 4. Sxg8 gxf2+ 5. Kxf2 h5 6. Kg3 Th6 7. Kh3 Te6 8. Sh6 Te7 9. Ka3 Te3#
play all play one stop play next play all
Henrik Juel: C+ Jacobi 0.7.5
Cylinder-specific mate with triple-check (2020-10-05)
comment
Keywords: Unique Proof Game, Vertical Cylinder, RIFACE Retro Composition Tourney (2016)
Genre: Retro, Fairies
Computer test: C+ Jacobi v0.7.5 & no shorter solution -0.5,-1.0,-1.5 (AB)
FEN: rnbqkb2/pppp1p2/7N/7p/8/K3r3/PPPPP1PP/R1BQ1BNR
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2021-06-10 more...
12 - P1380668
Michel Caillaud
RIFACE 2016
1st commendation
P1380668
(0+1) C+
BP in 6,0
Ergänze Steine zu einem Vierfachschach
vertikaler Zylinder
1. e4 e6 2. Dd1xb7 Da3 3. Dxa7 Txa7 4. e5 Tb7 5. Ke2 Da8 6. Kf3 Tb3++++
play all play one stop play next play all
Henrik Juel: This proof game is C+ Jacobi 0.7.5 (2020-10-06)
A.Buchanan: Thanks Henrik: wish we could show any solution in the animation, by including a sequence of actual diagrams where a fairy move cannot be animated directly. All this requires to implement this is some documentation (2020-10-07)
comment
Keywords: Unique Proof Game, Vertical Cylinder, RIFACE Retro Composition Tourney (2016), Miniature
Genre: Retro, Fairies
Computer test: C+ Jacobi 0.7.5 & no shorter solution -1.0 (WTM)
FEN: 8/8/4p3/8/8/8/8/8
Input: A.Buchanan, 2020-10-05
Last update: Arnold Beine, 2022-10-27 more...
13 - P1380669
Marco Bonavoglia
RIFACE 2016
2nd commendation
P1380669
(14+15) C+
BP in 5.0
2 Lösungen
vertikaler Zylindre
Kees: 1.e4 g6 2.Da6 hxa6 3.c4 Th6 4.d3 Fg7 5.Fxh6 axh6
1.c4 a6 2.Dg6 hxg6 3.d3 Th6 4.Fxh6 gxh6 5.e4 Fg7 (2022-11-22)
more ...
comment
Keywords: Unique Proof Game, Vertical Cylinder, RIFACE Retro Composition Tourney (2016)
Genre: Retro, Fairies
Computer test: C+ Jacobi
FEN: rnbqk1n1/1pppppb1/p5pp/8/2P1P3/3P4/PP3PPP/RN2KBNR
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2021-06-09 more...
14 - P1380670
Dmitri Baibikow
Retro Championnat de France RIFACE 2015
5. ehrende Erwähnung
Phenix 2015-2016
P1380670
(12+9)
Ordre et lieux des captures?
Beispielauflösung mri:
R: 1. ... Lc8xDb7 2. Dc6xDb7 g6xTh5 3. Da4-c6 Dc6-b7 4. Th1-h5 Kb7-a8 5. Sf4-e6 Ta8-b8 6. Sh3-f4 Kb8-b7 7. Sg1-h3 Lb7-c8 8. Kd7-d8 Dc5-c6 9. Ke6-d7 Kc8-b8 10. Ke5-e6 Kd7-c8 11. Da1-a4 Th8-a8 12. Kd4-e5 Dd6-c5 13. Kc3-d4 Lc8-b7 14. Kc2-c3 Ke8-d7 15. La8-d5 Tb7-a7 16. a7-a8=L Tb8-b7 17. Kd1-c2 b7xTa6 18. Ke1-d1 Dd7-d6 19. Dd1-a1 Ta8-b8 20. Ta1-a6 Dd8-d7 21. a6-a7 a7xLb6 22. Ld4-b6 Dd7-d8 23. Lb2-d4 Dd8-d7 24. Lc1-b2 Dd7-d8 25. c3-c4 Dd8-d7 26. b2xLc3 Lg7-c3 27. a5-a6 Lf8-g7 28. a4-a5 g7-g6 29. g6xBh7 Tg8-h8 30. f5xSg6 Th8-g8 31. Sc3-e4 Se5-g6 32. h5-h6 Sc6-e5 33. e4xBf5 Sb8-c6 34. d3xSe4 Sf6-e4 35. c2xBd3 d4-d3 36. Sb1-c3 d5-d4 37. h4-h5 Sg8-f6 38. h3-h4 f7-f5 39. h2-h3 d7-d5 40. a2-a4
play all play one stop play next play all
Reihenfolge und Art der Entschläge sind vollständig determiniert:
sLc8xDb7, wDc6xDb7, sBg6xTh5, sBb7xTa6, sBa7xLb6, wBb2xLc3, wBg6xBh7, wBf5xSg6, wBe4xBf5,
wBd3xSe4, wBc2xBd3
Kees: All captures are determinate.
R: sLc8xDb7 / wDc6xDb7 / sg6xTh5 / sb7xTa6 / sa7xLb6 / wb2xLc3 / wg6xh7 / wf5xSg6 / we4xf5 /
wd3xSe4 / wc2xd3

R: -1. … Lc8xDb7+ -2. Dc6xDb7+ g6xTh5 -3. Da4-c6 Dc6-b7 -4. Ke8-d8 Db7-c6+ -5. Kf7-e8 Dc6-b7 -6. Db5-a4 Ld7-c8 -7. Da4-b5 Tg8-b8 -8. Db5-a4 Kb8-a8 -9. c3-c4 Dc5-c6 -10. Sf4-e6 Kc8-b8 -11. Da4-b5 Tb7-a7 -12. Db5-a4 Tb8-b7 -13. La8-d5 Th8-g8 -14. a7-a8=L b7xTa6 -15. Ta5-a6 Dc6-c5 -16. a6-a7 a7xLb6 -17. Lc5-b6 Kd8-c8 -18. La3-c5 Dc5-c6 -19. Lc1-a3 Kc8-d8 -20. b2xLc3 Lg7-c3 -22. Da4-b5 Lf8-g7 -23. Th1-h5 g7-g6 etc. (2022-02-22)
comment
Keywords: Volet Pawn, Obvious promotion (wL)
Genre: Retro
FEN: kr1K4/rbp1p2P/pp2N2P/3B3p/2P1N3/8/3PPPP1/5B2
Reprints: R2 Phénix 253 09/2015
Phénix 290-291, p. 11371, 11-12/2018
Input: A.Buchanan, 2020-10-05
Last update: Mario Richter, 2022-02-23 more...
15 - P1380676
Pascal Wassong
Axel Gilbert

RIFACE 2015
3rd Place
P1380676
(16+16)
BP in 12.5
Anti take&make
Henrik Juel: Jacobi 0.7.5 was too slow for me (2020-10-05)
comment
Keywords: Anti-take&make, Unique Proof Game, RIFACE Retro Composition Tourney (2015)
Genre: Retro, Fairies
FEN: rnbq1knr/p2P1P2/1P1ppp1P/8/7p/b1P1P1PR/2p1p1pP/1NBQKBNR
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2020-12-22 more...
16 - P1380678
Pascal Wassong
Axel Gilbert

RIFACE 2015
4th Place
P1380678
(16+16)
BP in 8.0
Anti take&make
Henrik Juel: C+ Jacobi 0.7.5
1.Sf3 Sc6 2.Se5 Sxe5 [+wSc6] 3.g3 Sd3+ 4.cxd3 [+bSc5] Se4 5.dxe4 [+bSd6] Sf5 6.exf5 [+bSh4] Sg6 7.fxg6 [+bSe5] Sxc6 [+wSb8] 8.Bg2 Sxb8 [+wSa6] (2020-10-05)
comment
Keywords: Anti-take&make, Unique Proof Game, RIFACE Retro Composition Tourney (2015), Homebase (s)
Genre: Retro, Fairies
FEN: rnbqkbnr/pppppppp/N5P1/8/8/6P1/PP1PPPBP/RNBQK2R
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2020-12-22 more...
17 - P1380679
Allan Bell
RIFACE 2015
5th Place
P1380679
(16+16)
BP in 13.5
Anti take&make
Henrik Juel: Jacobi 0.7.5 was too slow for me (2020-10-05)
comment
Keywords: Anti-take&make, RIFACE Retro Composition Tourney (2015), Unique Proof Game
Genre: Retro, Fairies
FEN: 1nb1k2r/1Qqpnpbp/1pP1P1P1/r6P/8/1pPp1p1p/PB1NPKPR/R4BN1
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2020-12-22 more...
18 - P1380681
Marco Bonavoglia
RIFACE 2015
6th Place
P1380681
(16+16)
BP in 6.0
Anti take&make
Henrik Juel: Solution
1.e4 f5 2.exf5 [+bPf4] g5 3.fxg6 e.p. [+bPg4] Sf6 4.g7 Bxg7 [+wPg8=B] 5.Bxh7 [+bPh5] Sxh7 [+wBd3] 6.Bde2 O-O
The Capture-free keyword is misleading: there are lots of captures, but the captured men 'make' a move to re-appear (2020-10-06)
A.Buchanan: Yes Henrik I started putting that on before I read the definition. I will pull those tags off soon. (2020-10-07)
more ...
comment
Keywords: Anti-take&make, RIFACE Retro Composition Tourney (2015), Unique Proof Game, Home Circuit (wBe)
Genre: Retro, Fairies
Computer test: C+ Jacobi
FEN: rnbq1rk1/ppppp1bn/8/7p/5pp1/8/PPPPBPPP/RNBQKBNR
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2020-12-22 more...
19 - P1380682
Oliver Sick
RIFACE 2015
7th Place
P1380682
(16+16)
BP in 8.0
Anti take&make
Henrik Juel: C+ Jacobi 0.7.5
1.Sf3 f6 2.Se5 fxe5 [+wSc4] 3.Sb6 axb6 [+wSc4] 4.Sd6+ exd6 [+wSf7] 5.Sxd8 [+bQf6] Sc6 6.Sxc6 [+bSa5] bxc6 [+wSd4] 7.Sf3 Qxf3 [+wSg1] 8.exf3 [+bQf6] Qd8
Active Sg1 (2020-10-05)
comment
Keywords: Anti-take&make, RIFACE Retro Composition Tourney (2015), Unique Proof Game
Genre: Retro, Fairies
FEN: r1bqkbnr/2pp2pp/1ppp4/n3p3/8/5P2/PPPP1PPP/RNBQKBNR
Input: A.Buchanan, 2020-10-05
Last update: A.Buchanan, 2020-12-22 more...
20 - P1389732
Jeff Coakley
4 Retro Championnat de France RIFACE 2020
P1389732
(15+14)
KBP in 4,5
1. d3 e6 2. Le3 Se7 3. Lxa7 Sec6 4. Lxb8 Sxb8 5. d4
play all play one stop play next play all
Sibling Sb8
Moldenhauer: Computerprüfung: C+ Stelvio 1.6 1 Sekunde.
Keine Lösung: BP 4.0. (2023-10-03)
comment
Keywords: Unique Proof Game, Pawn step variations
Genre: Retro
FEN: rnbqkb1r/1ppp1ppp/4p3/8/3P4/8/PPP1PPPP/RN1QKBNR
Reprints: R4 Phénix 312, p. 12149, 11/2020
Input: A.Buchanan, 2021-05-17
Last update: Gunter Jordan, 2021-05-18 more...
21 - P1389733
Jeff Coakley
5 Retro Championnat de France RIFACE 2020
P1389733
(14+14)
KBP in 6,0
1. d3 Sh6 2. Lxh6 e5 3. e3 Lc5 4. Se2 Lxe3 5. Sc1 Lxc1 6. Lxc1 0-0
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Jacobi v0.7.6 beta1 in 7 Min. PG demolition mode (2022-08-07)
comment
Keywords: Unique Proof Game, Castling, Switchback (L)
Genre: Retro
FEN: rnbq1rk1/pppp1ppp/8/4p3/8/3P4/PPP2PPP/RNBQKB1R
Reprints: R5 Phénix 312, p. 12149, 11/2020
Input: A.Buchanan, 2021-05-17
Last update: Gunter Jordan, 2021-05-18 more...
22 - P1389734
Paul Raican
6 Retro Championnat de France RIFACE 2020
P1389734
(15+15) C+
KBP in 14.5
1. e4 d5 2. exd5 Dxd5 3. Dg4 Db3 4. Db4 Kd7 5. Sc3 Ke6 6. Lc4+ Ke5 7. d3 Kd4 8. Lg5 e5 9. f4 Ke3 10. Kf1 Kd2 11. Kf2 Lc5+ 12. Kf3 Lf2 13. Tf1 Le1 14. Se4+ Kd1 15. Dd2#
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.4 in 10 Sekunden.
Keine Lösung: BP 14.0 mit Stelvio 1.0 geprüft.
Notation: 1.e4 d5 2.exd5 Dxd5 3.Dg4 Db3 4.Db4 Kd7 5.Sc3 Ke6 6.Lc4+ Ke5
7.d3 Kd4 8.Lg5 e5 9.f4 Ke3 10.Kf1 Kd2 11.Kf2 Lc5+ 12.Kf3 Lf2 13.Tf1 Le1
14.Se4+ Kd1 15.Dd2# (2023-07-22)
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Stelvio 1.4
FEN: rnb3nr/ppp2ppp/8/4p1B1/2B1NP2/1q1P1K2/PPPQ2PP/3kbRNR
Input: A.Buchanan, 2021-05-17
Last update: Silvio Baier, 2023-08-15 more...
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A.Buchanan (22)