Die Schwalbe

35 problem(s) found in 4463 milliseconds (displaying 35 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT K='Umwandlungsscherz' AND A='Lois, Jorge Joaquin'] [download as LaTeX]

1 - P0005591
Alfred Gschwend
Jorge Joaquin Lois
Julio Alberto Pancaldo
Pedro Gomez Masia
Emiliano F. Ruth

Die Schwalbe 25 02/1974
P0005591
(16+14)
BP in 29,5
1. Sa3 Sa6 2. Sc4 Tb8 3. Se5 Sh6 4. Sg6 Sg8 5. Sxh8 Sh6 6. Sg6 Sg8 7. Se5 Sh6 8. Sc6 Sg8 9. Sxb8 Sh6 10. Sc6 Sg8 11. Sa5 Sh6 12. Sc4 Sg8 13. b4 Sh6 14. b5 Sg8 15. b6 Sh6 16. La3 Sg8 17. Db1 Sh6 18. Kd1 Sg8 19. Kc1 Sh6 20. Kb2 Sg8 21. Kc3 Sh6 22. Kd3 Sg8 23. Ke3 Sh6 24. Kf3 Sg8 25. Kg3 Sh6 26. Kh3 Sg8 27. Dd1 Sh6 28. Lc1 Sg8 29. Sa3 Sb8 30. Sb1
play all play one stop play next play all
Konstruktionsausschreiben 06/1973
Moldenhauer: Computerprüfung: C+ NUPG Stelvio 1.11 00:07:09 Minuten. (hh:mm:ss)
Keine Lösung: BP 28.5, BP 29.0.
Beispiel: 1.Sa3 Sa6 2.Sb5 Tb8 3.Sd4 Ta8 4.Sc6 Tb8 5.Sxb8 Sb4 6.Sc6 Sa6
7.Se5 Sb4 8.Sg6 Sa6 9.Sxh8 Sb4 10.Sg6 Sa6 11.Se5 Sb4 12.Sc4 Sa6 13.b4 Sb8
14.La3 Sa6 15.Db1 Sb8 16.Kd1 Sa6 17.Kc1 Sb8 18.Kb2 Sa6 19.Kc3 Sb8
20.Kd3 Sa6 21.Ke3 Sb8 22.Kf3 Sa6 23.Kg3 Sb8 24.Kh3 Sa6 25.Dd1 Sb8
26.Lc1 Sa6 27.Sa3 Sb8 28.Sb1 Sa6 29.b5 Sb8 30.b6 (2023-04-24)
comment
Keywords: Construction task, Non-Unique Proof Game
Genre: Retro
FEN: 1nbqkbn1/pppppppp/1P6/8/8/7K/P1PPPPPP/RNBQ1BNR
Input: Gerd Wilts, 1995-06-05
Last update: A.Buchanan, 2012-04-08 more...
2 - P0005597
Frank Schützhold
Jorge Abel Barros
Raul Ocampo
Jorge Joaquin Lois
Julio Alberto Pancaldo

(2) Die Schwalbe 25 02/1974
P0005597
(15+15)
BP in 28,5
(27,5?)
1. Sc3 Sh6 2. Sd5 Tg8 3. b4 Sc6 4. b5 Sb8 5. b6 Sc6 6. La3 Sb8 7. Db1 Sc6 8. Db5 Sb8 9. Da6 bxa6 10. Kd1 Lb7 11. Kc1 Dc8 12. Sf6+ Kd8 13. Sxg8 Sc6 14. Sf6 Sg8 15. Sd5 Ke8 16. Kb2 Dd8 17. Kc3 Lc8 18. b7 Sh6 19. b8=D Sg8 20. Db1 Sh6 21. Dd1 Sg8 22. Lc1 Sh6 23. Kd3 Sg8 24. Ke3 Sh6 25. Kf3 Sg8 26. Kg3 Sh6 27. Kh3 Sg8 28. Sc3 Sb8 29. Sb1
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Konstruktionsausschreiben 06/1973
Moldenhauer: Computerprüfung: C+ NUPG BP 28.5 cooked in 1 Sekunde.
Keine Lösung: BP 26.5 bis BP 28.0.
Beispiel: 1.Sc3 Sa6 2.Sd5 Tb8 3.b4 Ta8 4.La3 Tb8 5.Db1 Ta8 6.Kd1 Tb8 7.Kc1 Ta8
8.Kb2 Tb8 9.Kc3 Ta8 10.Kd3 Tb8 11.Ke3 Ta8 12.Kf3 Tb8 13.Kg3 Ta8
14.Kh3 Tb8 15.b5 Ta8 16.b6 Sb8 17.Db5 Sc6 18.Da6 bxa6 19.b7 Sh6
20.b8D Tg8 21.Db1 Lb7 22.Dd1 Dc8 23.Sf6+ Kd8 24.Sxg8 Sb8 25.Sf6 Sg8
26.Sd5 Ke8 27.Lc1 Dd8 28.Sc3 Lc8 29.Sb1 (2023-04-02)
comment
Keywords: Non-Unique Proof Game, Construction task, Promotion
Genre: Retro
FEN: rnbqkbn1/p1pppppp/p7/8/8/7K/P1PPPPPP/RNBQ1BNR
Input: Gerd Wilts, 1995-06-05
Last update: A.Buchanan, 2012-04-08 more...
3 - P1013083
Roberto Osorio
Jorge Joaquin Lois
Oscar Cuasnicú

R230 Probleemblad 02/2004
3. Lob
P1013083
(15+15) C+
BP in 21,5
1. g3 Sa6 2. Lg2 Tb8 3. Lc6 bxc6 4. Sf3 Tb3 5. 0-0 Ta3 6. bxa3 e6 7. Lb2 Le7 8. Ld4 Lh4 9. Sc3 Dg5 10. Tb1 Se7 11. Tb8 0-0 12. Db1 Lb7 13. Te8 Sg6 14. Te7 Ta8 15. Te8+ Sf8 16. Td8 Lc8 17. Db7 Db5 18. Ta1 Db1+ 19. Se1 Dd1 20. Sb1 Sb8 21. Lb2 a6 22. Lc1
play all play one stop play next play all
Aufwändige Manöver zum Einschleusen des wTa1 nach d8 und der sD nach d1. wTa1/sTa8 sind wTh1/sTh8.
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:10:35 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.5, BP 21.0. (2023-03-16)
comment
Keywords: Unique Proof Game, Promenade, Interchange, Castling (2), Switchback (LSls), Impostor (Tt)
Genre: Retro
Computer test: Stelvio 1.11
FEN: rnbR1nk1/1Qpp1ppp/p1p1p3/8/7b/P5P1/P1PPPP1P/RNBqN1K1
Reprints: (81) Die Schwalbe 250A 08/2011
Input: Gerd Wilts, 2004-02-20
Last update: Silvio Baier, 2023-03-20 more...
4 - P1028632
Jorge Joaquin Lois
1577 feenschach 29 08-09/1975
1. Lob
P1028632
(12+3) C+
s#3
1. d8=S+ Txd8 2. f8=S+ Txf8 3. De4+ Le5#
1. ... Lxd8 2. Sc7+ Lxc7 3. Sd4+ Txd4#
play all play one stop play next play all
BS Problemid: 13522
Authors: Lois, Jorge J
Sources:
Years: 1975
SBD: Reziproke Batteriebildung "in elementarster Form" laut Chlubna (DMDWK, Seite 82). (2014-03-12)
more ...
comment
Keywords: Brian Stephenson Collection (13522), Battery creation
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/1R1P1P2/2PrkbP1/1N4B1/5KP1/1N2PQ2/8/8
Reprints: Das Matt des weißen Königs
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-12-19 more...
5 - P1067819
Jorge Joaquin Lois
Roberto Osorio

R269 Probleemblad 1 01-02/2005
P1067819
(15+15) C+
BP in 20,0
1. g4 h6 2. g5 hxg5 3. Lg2 Th3 4. Le4 Tb3 5. axb3 Sf6 6. Ta5 Sh5 7. Tf5 a5 8. d3 a4 9. Lf4 a3 10. e3 a2 11. Dg4 a1=T 12. Sf3 T1a6 13. 0-0 Tg6 14. Tc1 f6 15. Se1 Kf7 16. f3 Ke6 17. Te5+ Kd6 18. Td5+ Kc6 19. Ta5+ Kb6 20. Ta1 c5
play all play one stop play next play all
Der wT gibt dreimal Schach und Schachschutz für den sK.
Henrik Juel: Natch 3.1 found little in half an hour
Stopped at position 4 (2018-12-21)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 00:24:45 Minuten (hh:mm:ss).
Keine Lösung: BP 19.0, BP 19.5. (2023-03-01)
comment
Keywords: Unique Proof Game, Phoenix (t), Check Protection
Genre: Retro
Computer test: Stelvio 1.0
FEN: rnbq1b2/1p1pp1p1/1k3pr1/2p3pn/4BBQ1/1P1PPP2/1PP4P/RNR1N1K1
Input: Gerd Wilts, 2005-02-04
Last update: Silvio Baier, 2023-03-02 more...
6 - P1067873
Roberto Osorio
Jorge Joaquin Lois

StrateGems 2004
5. Preis
P1067873
(15+13) C+
BP in 22,5
1. b3 g6 2. La3 Lg7 3. Ld6 Lc3 4. Lxc7 Sf6 5. Lxb8 Da5 6. h4 Da3 7. Lh2 a5 8. g3 Ta6 9. Lg2 Te6 10. Kf1 Te3 11. dxe3 d6 12. Dd3 Kd7 13. Da6 bxa6 14. La8 Lb7 15. Sf3 Tc8 16. Lg1 Tc4 17. Sh2 Tg4 18. f4 Kc6 19. Lf2 Kc5 20. Le1 Lf3 21. Ld2 Se4 22. Lc1 Sd2+ 23. Kg1
play all play one stop play next play all
paul: wBc1 circuit (2020-11-29)
more ...
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Natch 3.1 (3 min.)
FEN: B7/4pp1p/p2p2p1/p1k5/5PrP/qPb1PbP1/P1PnP2N/RNB3KR
Reprints: feenschach 155, p. 296, Herb/2004
Input: Gerd Wilts, 2005-05-14
Last update: Alfred Pfeiffer, 2018-12-21 more...
7 - P1068229
Roberto Osorio
Jorge Joaquin Lois

4921 Phénix 142 07-08/2005
P1068229
(14+13) C+
BP in 20,0
1. f3 c6 2. Kf2 Da5 3. Kg3 Dc3 4. dxc3 h5 5. Dd6 h4+ 6. Kg4 h3 7. Dc7 hxg2 8. Sh3 g1=D 9. Lg2 Db6 10. Dxc8+ Dd8 11. Dc7 Th5 12. Dg3 Db6 13. Td1 Dg1 14. Td6 Td5 15. Le3 g5 16. Sd2 Dxa1 17. Lc5 Dg1 18. La3 Db6 19. De1 Td4+ 20. cxd4 Dd8
play all play one stop play next play all
Henrik Juel: d2xDc3xTd4 was too tricky for Natch 3.1, which did not find the solution in half an hour
Stopped at pos. 917 (2018-12-22)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 00:08:50 Minuten.
Keine Lösung: BP 19.0, BP 19.5. (2023-03-01)
more ...
comment
Keywords: Unique Proof Game, Pronkin Theme (d), Promotion (d)
Genre: Retro
Computer test: Stelvio 1.0
FEN: rn1qkbn1/pp1ppp2/2pR4/6p1/3P2K1/B4P1N/PPPNP1BP/4Q3
Reprints: (6) StrateGems 10-12/2007
Input: Gerd Wilts, 2006-01-22
Last update: Silvio Baier, 2023-03-02 more...
8 - P1068639
Roberto Osorio
Jorge Joaquin Lois

1961 Orbit 32 10/2006
Nicolas Dupont gewidmet
3rd Prize
P1068639
(15+13) C+
BP in 20,0
1. Sc3 Sc6 2. Sd5 Tb8 3. Sxe7 Kxe7 4. a4 Kf6 5. a5 Kg6 6. a6 Dh4 7. axb7 Sf6 8. bxc8=S Tb3 9. h3 Lb4 10. Sd6 Te8 11. Sf5 Tee3 12. Sg3 Se5 13. f4 Tf3 14. e4 Tf2 15. S1e2 Tbf3 16. Sc3 c6 17. d3 Td2 18. Sb1 Tff2 19. Se2 Kh5 20. Sg1+ Tfe2#
play all play one stop play next play all
Henrik Juel: Sb1 is actually [Sg1], and Sg1 is [Pa2] promoted on c8.
Testing with Euclide ran out of time. (2011-02-27)
paul: The first 19 moves checked by Euclide in half a day. (2020-12-02)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 01:04:22 Stunde. (hh:mm:ss)
Keine Lösung: BP 19.0, BP 19.5. (2023-03-02)
more ...
comment
Keywords: Unique Proof Game, Interchange
Genre: Retro
Computer test: Stelvio 1.0
FEN: 8/p2p1ppp/2p2n2/4n2k/1b2PP1q/3P3P/1PPrr1P1/RNBQKBNR
Reprints: H30 Vkontakte 2013
H30 Phénix 261/262, p. 10353, 05-06/2016
Input: Gerd Wilts, 2006-12-05
Last update: Silvio Baier, 2023-03-03 more...
9 - P1068645
Roberto Osorio
Jorge Joaquin Lois

Moutecidis Fougiaxis Prentos Jubiläumst. 12/2006
1. ehrende Erwähnung K. Prentos 40 Jahre
P1068645
(13+13) C+
BP in 17,0
1. a4 Sa6 2. a5 Sc5 3. a6 c6 4. axb7 Da5 5. b8=L La6 6. Lg3 0-0-0 7. f4 Kb8 8. Kf2 Tc8 9. f5+ Tc7 10. f6 Lb5 11. fxe7 a6 12. e8=L Ld6 13. Lxf7 Se7 14. La2 Dxa2 15. Kf3 Tf8+ 16. Kg4 Txf1 17. Lf2 Txf2
play all play one stop play next play all
Silvio Baier: C+ (Euclide 0.95) (2010-02-02)
paul: BB Prentos theme (2020-11-29)
comment
Keywords: Unique Proof Game, Ceriani-Frolkin Theme (LL)
Genre: Retro
Computer test: Euclide 0.95
FEN: 1k6/2rpn1pp/p1pb4/1bn5/6K1/8/qPPPPrPP/RNBQ2NR
Reprints: (3) StrateGems 10/2007
Input: Gerd Wilts, 2006-12-21
Last update: A.Buchanan, 2014-05-11 more...
10 - P1070008
Roberto Osorio
Jorge Joaquin Lois

13821 Die Schwalbe 232 08/2008
P1070008
(13+15) C+
BP in 20.5
1. h4 c5 2. Th3 Db6 3. Tb3 Dxb3 4. a3 Da2 5. Sc3 Db1 6. Sh3 Dxc1 7. Dxc1 d6 8. Db1 Sd7 9. Da2 Sdf6 10. 0-0-0 Kd7 11. Da1 Ke6 12. Kb1 Kf5 13. Ka2 Kg4 14. Kb3 Lf5 15. Da2 Tc8 16. Ta1 Tc6 17. Db1 Tb6+ 18. Ka2 Tb3 19. Dd1 b6 20. Sb1 Txh3 21. g3
play all play one stop play next play all
zweifacher Platzwechsel von Dd1 und Ta1, Rückkehr Sb1
Henrik Juel: The double interchange (Lois theme) is a challenge for solvers
Natch 3.1 did little in an hour
Stopped at pos. 5 (2018-12-26)
Moldenhauer: Computerprüfung: C+ Stelvio 1.2 127:03:03 Stunden. (hhh:mm:ss)
Keine Lösung: BP 19.5, BP 20.0 22:17:49 Stunden. (2023-05-18)
more ...
comment
Keywords: Unique Proof Game, Interchange (DT x2), Switchback (S), Lois Theme (DT), Castling
Genre: Retro
Computer test: Stelvio 1.2
FEN: 5bnr/p3pppp/1p1p1n2/2p2b2/6kP/P5Pr/KPPPPP2/RN1Q1B2
Input: Gerd Wilts, 2008-09-05
Last update: Silvio Baier, 2023-08-15 more...
11 - P1070094
Roberto Osorio
Jorge Joaquin Lois

2322 Orbit 38 04/2008
P1070094
(14+14) C+
BP in 17.0
1. c4 Sc6 2. Dc2 Se5 3. Dg6 hxg6 4. f4 Th3 5. Kf2 Tb3 6. axb3 Sg4 7. Kg3 e5 8. Ta6 La3 9. Tf6 a5 10. Kh4 Ta6 11. Kg5 Td6 12. h4 b6 13. Th3 Lb7 14. Tc3 Td3 15. bxa3 Tg3 16. Te3 Lf3 17. Te4 Sxf6#
play all play one stop play next play all
paul: 17.--S4xf6# (2020-11-30)
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comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Natch 3.1 (19 m)
FEN: 3qk1n1/2pp1pp1/1p3np1/p3p1K1/2P1RP1P/PP3br1/3PP1P1/1NB2BN1
Input: Gerd Wilts, 2008-09-15
Last update: Alfred Pfeiffer, 2018-12-27 more...
12 - P1080581
Roberto Osorio
Jorge Joaquin Lois

StrateGems 01-03/2006
P1080581
(15+12) C+
BP in 25,5
1. h4 f5 2. h5 Kf7 3. h6 Kg6 4. Sh3 Kh5 5. Sc3 g6 6. Sd5 Lg7 7. Sb4 Lf6 8. Sg1+ Lh4 9. Sf3 Sf6 10. e3 Dg8 11. Ke2 Db3 12. axb3 Tg8 13. Ta6 Tg7 14. Te6 dxe6 15. Sg1 Ld7 16. Kf3 Lb5 17. Le2 Sc6 18. Df1 Td8 19. Ld1 Td3 20. Se2 Sd4+ 21. Kf4 c6 22. exd4 Tg3 23. hxg7 Ld3 24. cxd3 h6 25. Lc2 Sh7 26. Sg1
play all play one stop play next play all
Silvio Baier: 1.h4 f5 2.h5 Kf7 3.h6 Kg6 4.Sh3 Kh5 5.Sc3 g6 6.Sd5 Bg7 7.Sb4 Lf6 8.Sg1+ Lh4 9.Sf3 Sf6 10.e3 Dg8 11.Ke2 Db3 12.ab Tg8 13.Ta6 Tg7 14.Te6 de 15.Sg1 Ld7 16.Kf3 Lb5 17.Le2 Sc6 18.Df1 Td8 19.Ld1 Td3 20.Se2 Sd4+ 21.Kf4 c6 22.ed Tg3 23.hg Ld3 24.cd h6 25.Lc2 Sh7 26.Sg1
Dreifache Rückkehr des Sg1 (2010-02-16)
Henrik Juel: Natch 3.1 did little in more than an hour
Stopped at pos. 1 (2018-12-25)
Vladimir Rey: Update: 2. Preis (source: feenschach 171 2008) (2022-07-28)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 16:43 Minuten.
Keine Lösung: BP 24.5, 25.0. (2023-02-14)
comment
Keywords: Unique Proof Game, Switchback (S)
Genre: Retro
Computer test: Stelvio 1.0
FEN: 8/pp2p1Pn/2p1p1pp/5p1k/1N1P1K1b/1P1P2r1/1PBP1PP1/2B2QNR
Reprints: StrateGems 10-12/2007
Input: Gerd Wilts, 2009-01-11
Last update: Silvio Baier, 2023-03-02 more...
13 - P1080589
Roberto Osorio
Jorge Joaquin Lois

(O5) StrateGems 10-12/2007
P1080589
(14+12) C+
BP in 15,0
1. f4 d5 2. f5 Le6 3. f6 Sd7 4. fxe7 f5 5. exf8=L Se7 6. a4 Sc8 7. Ld6 Dh4 8. Lg3 0-0 9. a5 Tf6 10. a6 Tg6 11. axb7 Tg5 12. b8=D g6 13. Dxa7 Kg7 14. Da2 Txa2 15. Lf2 Dxf2+
play all play one stop play next play all
Silvio Baier: 1.f4 d5 2.f5 Le6 3.f6 Sd7 4.fe f5 5.efL Se7 6.a4 Sc8 7.Ld6 Dh4 8.Lg3 0-0 9.a5 Tf6 10.a6 Tg6 11.ab Tg5 12.b8D g6 13.D:a7 Kg7 14.Da2 T:a2 15.Lf2 D:f2+
Rundläufe zweier Bauern mit anschließendem Schlag - damit auch Ceriani-Frolkin(DL); C+ (Euclide 0.95) (2010-02-16)
paul: QB Prentos theme (2020-11-29)
comment
Keywords: Unique Proof Game, Ceriani-Frolkin Theme (DL), Pure Round Trip (BB), Homebase (W)
Genre: Retro
Computer test: Euclide 0.95
FEN: 2n5/2pn2kp/4b1p1/3p1pr1/8/8/rPPPPqPP/RNBQKBNR
Input: Gerd Wilts, 2009-01-11
Last update: A.Buchanan, 2015-04-06 more...
14 - P1080625
Roberto Osorio
Jorge Joaquin Lois

R133 Problem Paradise 01-03/2006
P1080625
(13+15) C+
BP in 19,5
1. d4 Sc6 2. Dd3 Tb8 3. Da6 bxa6 4. Sf3 Tb5 5. Sh4 Th5 6. Sf5 d5 7. Sh6 gxh6 8. g4 Lg7 9. g5 Le5 10. g6 Sf6 11. g7 Sd7 12. g8=S Sdb8 13. Sf6 exf6 14. dxe5 Se7 15. e6 Sg8 16. e7 Kd7 17. e8=D+ Kd6 18. Da4 Ld7 19. c3 Le8 20. Dd1
play all play one stop play next play all
paul: This PG (with bBe8) was ranked first (judge K. Prentos) (2020-12-01)
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comment
Keywords: Unique Proof Game, Interchange (ss), Pronkin Theme (D), Ceriani-Frolkin Theme (S), Promotion (SD)
Genre: Retro
Computer test: C+ Natch 3.1 No solution for 19.0 moves
FEN: 1n1qb1nr/p1p2p1p/p2k1p1p/3p3r/8/2P5/PP2PP1P/RNBQKB1R
Input: Gerd Wilts, 2009-01-17
Last update: A.Buchanan, 2021-02-20 more...
15 - P1084086
Roberto Osorio
Jorge Joaquin Lois

R349 Probleemblad 01-03/2009
P1084086
(13+15) C+
BP in 18,5
1. f4 Sf6 2. f5 Se4 3. f6 Sxd2 4. Kf2 Sb3 5. Dd2 b6 6. Dh6 gxh6 7. Lg5 Lg7 8. e3 0-0 9. Ld3 Kh8 10. Lg6 fxg6 11. f7 Tg8 12. f8=D Sc1 13. Df3 Te8 14. Dxa8 Kg8 15. Sf3 Kf7 16. Td1 Th8 17. Dd5 Ke8 18. Dg8 Lf8 19. Td5
play all play one stop play next play all
A.Buchanan: Not just hidden castling, but the full Lois theme with sKh8 & sTe8 (2022-02-08)
more ...
comment
Keywords: Unique Proof Game, Phoenix (D), Switchback (l), Lois Theme (kt), Castling Paradox (hidden sk)
Genre: Retro
Computer test: Stelvio 1.17, 50sec
FEN: 1nbqkbQr/p1ppp2p/1p4pp/3R2B1/8/4PN2/PPP2KPP/RNn5
Input: Gerd Wilts, 2009-03-27
Last update: Reto, 2023-04-11 more...
16 - P1085398
Jorge Joaquin Lois
Roberto Osorio

13285 Die Schwalbe 223 02/2007
2. Preis
P1085398
(14+15) C+
BP in 26,5
1. e4 a6 2. Lb5 axb5 3. h4 Ta3 4. h5 Th3 5. a4 c5 6. a5 c4 7. a6 c3 8. dxc3 h6 9. Lg5 hxg5 10. a7 Th6 11. a8=L Ta6 12. h6 b6 13. Ld5 Ta8 14. Lc4 d5 15. h7 Lf5 16. h8=L Lh7 17. Sf3 g6 18. 0-0 Lg7 19. Te1 Kf8 20. Lf1 De8 21. c4 Lc3 22. b3 La5 23. Lb2 Sf6 24. Dd4 Lg8 25. Sd2 Th8 26. Tad1 Sh7 27. Lc1
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 4 (2018-12-26)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:28:13 Minuten. (hh:mm:ss)
Keine Lösung: BP 25.5, BP 26.0. (2023-04-06)
more ...
comment
Keywords: Unique Proof Game, Pronkin Theme (LL), Interchange (tt), Promotion (LL), Castling
Genre: Retro
Computer test: Stelvio 1.11
FEN: rn2qkbr/4pp1n/1p4p1/bp1p2p1/2PQP3/1P3N2/2PN1PP1/2BRRBK1
Reprints: 74 Die Schwalbe 250A, p. 258, 08/2011
Input: Gerd Wilts, 2009-06-08
Last update: Silvio Baier, 2023-08-15 more...
17 - P1098611
Jorge Joaquin Lois
5629 Phénix 172 04/2008
P1098611
(13+13) C+
BP in 21,5
1. h4 g5 2. hxg5 c5 3. Th6 c4 4. Tb6 axb6 5. Sc3 Ta3 6. Sb5 Te3 7. fxe3 c3 8.
dxc3 h5 9. Dd5 Th6 10. Ld2 Tf6 11. 0-0-0 Txf1 12. Le1 Tf4 13. Df3 f5 14. Td6 Td4
15. Tf6 exf6 16. Sa3 De7 17. Sb1 Da3 18. Ld2 Da8 19. a4 La3 20. Kd1 d6 21. Ke1
Kd7 22. Lc1
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 1 (2018-12-27)
paul: 1.h4 g5 2.hxg5 c5 3.Rh6 c4 4.Rb6 axb6 5.Sc3 Ra3 6.Sb5 Re3 7.fxe3 c3 8.dxc3 h5 9.Qd5 Rh6 10.Bd2 Rf6 11.O-O-O Rxf1 12.Be1 Rf4 13.Qf3 f5 14.Rd6 Rd4 15.Rf6 exf6 16.Sa3 Qe7 17.Sb1 Qa3 18.Bd2 Qa8 19.a4 Ba3 20.Kd1 d6 21.Ke1 Kd7 22.Bc1. Hidden white castling. (2020-12-01)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:25:05 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.5, BP 21.0. (2023-03-12)
comment
Keywords: Unique Proof Game, Castling Paradox (wk hidden)
Genre: Retro
Computer test: Stelvio 1.11
FEN: qnb3n1/1p1k4/1p1p1p2/5pPp/P2r4/b1P1PQ2/1PP1P1P1/1NB1K1N1
Input: Gerd Wilts, 2010-01-31
Last update: Silvio Baier, 2023-03-20 more...
18 - P1106542
Roberto Osorio
Jorge Joaquin Lois
Mario Richter

Quartz 32 07-12/2007
1. Preis
Raican-50-JT
P1106542
(15+12) cooked
BP in 27.0
1. Sf3 e5 2. Sh4 Lb4 3. f3 Lc3 4. bxc3 d5 5. La3 d4 6. Lc5 d3 7. Sa3 dxe2 8. Kxe2 Ld7 9. Kd3 b5 10. De2 b4 11. Kc4 Sc6 12. Kb5 e4 13. Ka6 e3 14. Db5 e2 15. Sc4 e1=L 16. Le2 Lg3 17. The1 Ld6 18. Lg1 Lf8 19. Lf1+ De7 20. Te6 Td8 21. Tae1 Sb8+ 22. Kxa7 g5 23. Ta6 g4 24. Tee6 g3 25. Tec6 Lc8 26. Se5 Td4 27. cxd4 Dd8
play all play one stop play next play all
Cook: 1. Sf3 Sc6 2. Sh4 Sd4 3. f3 Sxe2 4. Kxe2 b6 5. Kd3 Tb8 6. Kc4 Tb7 7. Kb5 g5 8. Ka6 b5 9. Ld3 Tb6+ 10. Kxa7 Tc6 11. Te1 Tc3 12. Te6 g4 13. Ta6 e5 14. bxc3 e4 15. La3 e3 16. Lc5 e2 17. Sa3 e1=S 18. Lf1 b4 19. De2+ De7 20. Db5 Sd3 21. Te1 g3 22. Tee6 Se5 23. Tec6 d5 24. Lg1 d4 25. cxd4 Sd7 26. Sc4 Sb8 27. Se5 Dd8
hans: . (2014-09-09)
Henrik Juel: A record in comment brevity... (2014-09-09)
Michel Caillaud: cooked using Jacobi 0.7.5 with constraints :
1.Sf3 Sc6 2.Sh4 Sd4 3.f3 Sxe2 4.Kxe2 b6 5.Kd3 Tb8 6.Kc4 Tb7 7.Kb5 g5 8.Ka6 b5 9.Ld3 Tb6+ 10.Kxa7 Tc6 11.Te1 Tc3 12.Te6 g4 13.Ta6 e5 14.bxc3 e4 15.La3 e3 16.Lc5 e2 17.Sa3 e1=S 18.Lf1 b4 19.De2+ De7 20.Db5 Sd3 21.Te1 g3 22.Tee6 Se5 23.Tec6 d5 24.Lg1 d4 25.cxd4 Sd7 26.Sc4 Sb8 27.Se5 Dd8 (2021-07-29)
A.Buchanan: Mario: sorry to read this. Is it fixable do you think? (2021-07-29)
more ...
comment
Keywords: Unique Proof Game, Pronkin Theme (l), Switchback (Lsld), Retro Shield
Genre: Retro
Computer test: cooked by Jacobi 0.7.5 with constraints
FEN: 1nbqkbnr/K1p2p1p/R1R5/1Q2N3/1p1P3N/5Pp1/P1PP2PP/5BB1
Reprints: (H3) The Problemist 05/2010
Input: Gerd Wilts, 2010-06-02
Last update: A.Buchanan, 2021-07-31 more...
19 - P1109637
Silvio Baier
Roberto Osorio
Mario Richter
Juha M. Saukkola
Göran Wicklund
Jorge Joaquin Lois

(G) Die Schwalbe 233 10/2008
P1109637
(12+13)
Nach 13,5 Zügen stehen die KK in gegenüberliegenden Eckfeldern
Doppellängstzüger
Joost de Heer: Lots of duals:
1.Sc3 Sa6 2.Sh3 Sf6 3.Sg5 Sd5 4.Se6 Se3 5.Sxf8 Sxd1 6.Se6 Sxb2 7.Sxd8 O-O 8.Sc6 Sc4 9.Ba3 Sxa3 10.O-O-O Sb4 11.Sxe7+ Kh8 12.Sb1 Sxa2+ 13.Kb2 Sc4+ 14.Ka1 (2023-07-16)
comment
Keywords: Maximummer, Non-Unique Proof Game
Genre: Retro, Fairies
FEN: r1b2r1k/ppppNppp/8/8/2n5/8/n1PPPPPP/KN1R1B1R
Input: Gerd Wilts, 2010-07-03
Last update: James Malcom, 2021-08-24 more...
20 - P1177782
Roberto Osorio
Jorge Joaquin Lois

14636 Die Schwalbe 245 10/2010
P1177782
(12+15) C+
BP in 21,0
1. e4 h5 2. Dg4 hxg4 3. a4 g3 4. Ta3 gxh2 5. Tb3 hxg1=L 6. Th6 a5 7. Ta6 Sc6 8. Tbb6 Tb8 9. Lb5 Lxf2+ 10. Kf1 Ld4 11. Ta8 Lc3 12. Tba6 b6 13. dxc3 Tb7 14. Sd2 Ta7 15. Sb3 Lb7 16. Tc8 Ta8 17. Sc5 Tb8 18. Ta8 La6 19. b3 Tb7 20. Tab8 Ta7 21. Sb7 Ta8
play all play one stop play next play all
Henrik Juel: The keyword Pure Round Trip (tt) suggests roundtrips by two black rooks; in fact Ta8 does a double roundtrip (2018-12-29)
Henrik Juel: Natch 3.1 did not find the solution in an hour
Stopped at pos. 75
The puzzle in the NW corner is almost impossible for a solver like Natch, whereas a human solver would find it simple, if he got that far is the solving process
The double roundtrip is automatic (2018-12-29)
ras@bsiag.com: Actually, this problem is solvable by computer, tested by Stelvio 0.92 and found to be correct (just one of many PDB problems that will be either C+ or C- in the near future). It took a bit more than 1h. (2022-12-08)
comment
Keywords: Unique Proof Game, Pure Round Trip (tt), Ceriani-Frolkin Theme (l)
Genre: Retro
Computer test: Stelvio 1.0
FEN: rRRqkbnr/1Nppppp1/bpn5/pB6/P3P3/1PP5/2P3P1/2B2K2
Input: Gerd Wilts, 2010-10-07
Last update: Silvio Baier, 2023-03-02 more...
21 - P1215905
Jorge Joaquin Lois
Jorge Marcelo Kapros

StrateGems 2010
M. Prcic gewidmet
1. Preis
P1215905
(2+14)
h#8
0.1.1...
1. ... Lxe4 2. a1=L Lxc6 3. Le5 Lb5 4. Kb7 Ld3 5. Kc6 Lxf5 6. Kd5 Lg4 7. Ke4 Le2 8. Kf5 Ld3#
play all play one stop play next play all
Anton Baumann: C+ Alybadix (2021-03-17)
comment

Genre: h#
FEN: 8/k1p2br1/1np1np2/5pr1/4pp2/1p1B3K/p7/8
Input: Felber, Volker, 2011-10-27
Last update: hpr, 2012-09-29 more...
22 - P1240688
Roberto Osorio
Jorge Joaquin Lois

5629 Phénix 172 04/2008
P1240688
(13+13) C+
BP in 21,5
1. h2-h4 g7-g5 2. h4xg5 c7-c5 3. Th1-h6 c5-c4 4. Th6-b6 a7xb6 5. Sb1-c3 Ta8-a3 6. Sc3-b5 Ta3-e3 7. f2xe3 c4-c3 8. d2xc3 h7-h5 9. Dd1-d5 Th8-h6 10. Lc1-d2 Th6-f6 11. 0-0-0 Tf6xf1 12. Ld2-e1 Tf1-f4 13. Dd5-f3 f7-f5 14. Td1-d6 Tf4-d4 15. Td6-f6 e7xf6 16. Sb5-a3 Dd8-e7 17. Sa3-b1 De7-a3 18. Le1-d2 Da3-a8 19. a2-a4 Lf8-a3 20. Kc1-d1 Ke8-e7 21. Kd1-e1 Ke7-d6 22. Ld2-c1
play all play one stop play next play all
Mario Richter: I do not know the intended solution, but the following play does the job:
1.h2-h4 g7-g5 2.h4xg5 c7-c5 3.Rh1-h6 c5-c4 4.Rh6-b6 a7xb6 5.Nb1-c3 Ra8-a3 6.Nc3-b5 Ra3-e3 7.f2xe3 c4-c3 8.d2xc3 h7-h5 9.Qd1-d5 Rh8-h6 10.Bc1-d2 Rh6-f6 11.0-0-0 Rf6xf1 12.Bd2-e1 Rf1-f4 13.Qd5-f3 f7-f5 14.Rd1-d6 Rf4-d4 15.Rd6-f6 e7xf6 16.Nb5-a3 Qd8-e7 17.Na3-b1 Qe7-a3 18.Be1-d2 Qa3-a8 19.a2-a4 Bf8-a3 20.Kc1-d1 Ke8-e7 21.Kd1-e1 Ke7-d6 22.Bd2-c1
I think the theme is the so-called Lois-theme, here executed by wK and wBc1 (2014-10-02)
Henrik Juel: Thanks, Mario.
Besides the interchange by two men doubled (Lois), there is a nice roundtrip by Sb1 and an unlikely castling; very good (2014-10-02)
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 2 (2018-12-27)
more ...
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Moldenhauer Computerprüfung: C+ Stelvio 1.11 00:43:00 Minuten. (hh:mm:ss) Keine Lösung: BP 20.5, BP 21.0.
FEN: qnb3n1/1p1p4/1p1k1p2/5pPp/P2r4/b1P1PQ2/1PP1P1P1/1NB1K1N1
Input: Gerd Wilts, 2012-06-04
Last update: A.Buchanan, 2023-03-23 more...
23 - P1243394
Nicolas Dupont
Roberto Osorio
Jorge Joaquin Lois

15121 Die Schwalbe 253 02/2012
P1243394
(12+14) C+
KBP in 17.0
1. d4 g6 2. d5 Lh6 3. d6 Lg5 4. dxc7 d5 5. a4 Dd7 6. a5 Dg4 7. a6 Lf5 8. c8=L Sh6 9. Ld7 Sxd7 10. axb7 Sf6 11. b8=L Sh5 12. Ld6 0-0-0 13. Lcf4 Txd6 14. e3 Tf6 15. Lb8 a5 16. La6+ Kxb8 17. Lc8 Txc8
play all play one stop play next play all
paul: BB Prentos theme (2020-12-02)
more ...
comment
Keywords: Unique Proof Game, Ceriani-Frolkin Theme (LL), Anti-Pronkin (LL)
Genre: Retro
Computer test: Euclide
FEN: 1kr5/4pp1p/5rpn/p2p1bbn/6q1/4P3/1PP2PPP/RN1QK1NR
Input: Mario Richter, 2012-06-29
Last update: Arnold Beine, 2021-04-05 more...
24 - P1258504
Jorge Joaquin Lois
Problemist Ukrainy 2009
Spezielle ehrende Erwähnung
Semenenko-50-Jubiläumsturnier
P1258504
(4+11) C+
h#3
2.1...
1) 1. e1=L Te5 2. Sd5 Kxd1 3. Lg2 Txe1#
2) 1. e1=T Txd1 2. Ke2 Kxc3 3. Ke3 Txe1#
play all play one stop play next play all
VL: Schnoebelen Theme (t;l) (2022-01-23)
comment

Genre: h#
Computer test: Popeye Windows-32Bit v4.51 (100000 KB)
FEN: 3r4/8/1q5b/3R4/2p3p1/2n2pPb/2K1p3/3n1k1N
Input: hpr, 2013-01-06
Last update: hpr, 2013-01-06 more...
25 - P1276141
Jorge Joaquin Lois
Jorge Marcelo Kapros

Springaren , p. 160, 12/2011
2. Preis
Viktor Bene MT 2010
P1276141
(6+14)
h#4
b) -sBe4
a) 1. Kd7 Lxc4 2. Kc6 Ld5+ 3. Kxd5 dxe4+ 4. Kc4 d3#
b) 1. Ke7 Lxf4 2. Kf6 Le5+ 3. Kxe5 d4+ 4. Kf4 e3#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2021-06-23)
comment

Genre: h#
FEN: 1q2k3/8/8/1prBBpp1/1pp1ppr1/1p1P4/n2PP2K/6n1
Input: Felber, Volker, 2013-08-09
Last update: Felber, Volker, 2013-08-09 more...
26 - P1339426
Jorge Joaquin Lois
Roberto Osorio

StrateGems 2013
1. Preis
StrateGems 2013
P1339426
(12+12) C+
PG in 23.0
1. Sg1-f3 Sb8-c6 2. Sf3-d4 Sc6-e5 3. Sd4-c6 d7xc6 4. Sb1-c3 Lc8-e6 5. Sc3-a4 Le6-b3 6. Sa4-b6 c7xb6 7. g2-g4 Dd8-c7 8. g4-g5 0-0-0 9. g5-g6 Td8-d3 10. g6xh7 g7-g5 11. e2-e4 Se5-g6 12. e4-e5 Lf8-g7 13. e5-e6 Lg7-e5 14. c2xb3 Sg8-f6 15. b3-b4 Th8-d8 16. h7-h8=S a7-a5 17. Sh8xf7 Sg6-h8 18. Sf7-d6 e7xd6 19. b4xa5 Dc7-h7 20. e6-e7 Td8-d7 21. e7-e8=S Kc8-d8 22. Se8-c7 Sf6-e8 23. Sc7-a6 b7xa6
play all play one stop play next play all
Henrik Juel: Pa6,b6,c6,d6 look as if they have moved forward one step, but in reality they are [Pb7,c7,d7,e7], who have captured four knights, two of which were promoted
An original form of Impostors, along with well-hidden double Frolkin-Ceriani (2017-09-15)
Vladimir Rey: 1. Sf3 Sc6 2. Sd4 Se5 3. Sc6 dxc6 4. Sc3 Le6 5. Sa4 Lb3 6. Sb6 cxb6 7. g4 Dc7 8. g5 0-0-0 9. g6 Td3 10. gxh7 g5 11. e4 Sg6 12. e5 Lg7 13. e6 Le5 14. cxb3 Sf6 15. b4 Thd8 16. h8=S a5 17. Sxf7 Sh8 18. Sd6+ exd6 19. bxa5 Dh7 20. e7 Td7 21. e8=S Kd8 22. Sc7 Se8 23. Sa6 bxa6 (2022-08-03)
more ...
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Euclide 1.01
FEN: 3kn2n/3r3q/pppp4/P3b1p1/8/3r4/PP1P1P1P/R1BQKB1R
Reprints: H1 The Problemist 25-1, p. 38, 01/2015
Input: A.Buchanan, 2017-09-15
Last update: Alfred Pfeiffer, 2017-09-15 more...
27 - P1339612
Roberto Osorio
Jorge Joaquin Lois

R496 The Problemist 2015-2016
1. ehrende Erwähnung
The Problemist 2015-2016
P1339612
(11+14) C+
PG in 20.5
1. c4 d5 2. Db3 Lf5 3. Db6 axb6 4. Sh3 Ta3 5. Tg1 Tc3 6. a4 e6 7. a5 Ke7 8. a6 Kf6 9. a7 Le7 10. a8=D Df8 11. Da4 Txc1+ 12. Dd1 Tc3 13. Ta6 Tf3 14. gxf3 bxa6 15. Tg6+ hxg6 16. Sg1 Th3 17. Db3 Tg3 18. Lh3 Kg5 19. De3+ Kh4 20. Dh6+ gxh6 21. fxg3+
play all play one stop play next play all
Judge's comment [Silvio Baier]: "Two cross-captures with the same type of captured pieces (QR) are combined with a cross-capture of two black rooks. This is not the highest number of cross- captures in an orthodox proof game (see e.g. P1003984 for comparison), but the pairs are very harmonious and the additional white Q-Pronkin is difficult to implement, and especially the motivation of the promotion of Pa2 is very deep. The check in the diagram position does not detract, since g2-g3+ is also possible with respect to pure retroanalysis."
A.Buchanan: Great problem, but I disagree with the last sentence in Silvio's comment. The alternative at the end g2-g3+ would force an obtrusive bishop. If the composers could have figured out how to do this without the final check, they obviously would have. (2017-09-18)
Henrik Juel: I also like this proof game very much
It seems the kind of problem that is most readily solved by hand; the missing [Lc1] and the missing black rooks might prompt the suspicious solver to consider cross-captures
Euclide did find the solution, but after a long time, and he was not able to verify uniqueness within an hour (2017-09-18)
Moldenhauer: Computerprüfung: C+ Stelvio 1.4 00:01:28 Minute. (hh:mm:ss)
Wegen Retraktion, keine Überprüfung auf 20.0. (2023-07-17)
more ...
comment
Keywords: Unique Proof Game, Cross-capture (DT,DT,tt), Ceriani-Frolkin Theme (D), Impostor (ppppPP)
Genre: Retro
Computer test: Stelvio 1.4
FEN: 1n3qn1/2p1bp2/pp2p1pp/3p1b2/2P4k/5PPB/1P1PP2P/1N2K1N1
Reprints: The Problemist , p. 5, 03/2017
Input: A.Buchanan, 2017-09-18
Last update: Silvio Baier, 2023-08-15 more...
28 - P1340215
Roberto Osorio
Jorge Joaquin Lois

R470 The Problemist vol.24-8, p. 341, 03/2014
after Satoshi Hashimoto
Lob
The Problemist 2013-2014
P1340215
(15+9)
PG in 18.5
1. d3 g5 2. Lxg5 Lg7 3. Dd2 Lc3 4. Sxc3 c5 5. 0-0-0 Dc7 6. Sb1 Dg3 7. hxg3 h6 8. Txh6 b6 9. Te6 Th3 10. gxh3 Lb7 11. Lg2 Lf3 12. Sxf3 Sf6 13. Th1 Se4 14. Dd1 Sd2 15. Kxd2 fxe6 16. Ke1 Kf7 17. Lc1 Kf6 18. Sg1 Ke5 19. Lf1
play all play one stop play next play all
Judge's comment [Thomas Brand]: "This elegant proof game seems me original enough compared with Hashimoto's Probleemblad 1999, 3rd Prize, (PDB P1000642), even though the theme is not doubly set. The only missing white man is a Rook captured at e6, but Ra1 could not leave home."
Henrik Juel: The white plan is obvious, and Black ensures uniqueness by putting his men to be captured on squares, where White can go anyway, and by a late king's walk
This proof game is an enjoyable solving object showing that man can beat the computer; Euclide was still trying to find a strategy (a list of moves, possibly infeasible, that leads to the diagram position), when I had solved the problem and written the present lines...
You might call Pg3,h3 impostors also, as well as Th1 (2017-09-27)
Moldenhauer: Computerprüfung: C+ Natch 3.3 in 5 Std. 57 Min. nur obige Lösung
BP in 17.5 keine Lösung. (2022-09-05)
more ...
comment
Keywords: Unique Proof Game, Impostor (TPP), Switchback (SLDKLS), Cross-capture (gh)
Genre: Retro
FEN: rn6/p2pp3/1p2p3/2p1k3/8/3P2PP/PPP1PP2/1NBQKBNR
Reprints: R470 The Problemist vol.25-8, p. 347, 03/2016
Input: A.Buchanan, 2017-09-27
Last update: Alfred Pfeiffer, 2019-06-03 more...
29 - P1384484
Roberto Osorio
Jorge Joaquin Lois

Problemaz 2007
2. Preis
P1384484
(14+13) C+
BP in 16.5
1. f3 e6 2. Kf2 La3 3. bxa3 h5 4. a4 h4 5. Sa3 h3 6. Tb1 hxg2 7. Tb6 gxh1=L 8. Td6 b6 9. Lh3 La6 10. Lf5 Ld3 11. cxd3 Lg2 12. Sc2 Lh3 13. La3 Lg4 14. Da1 Lh5 15. Df6 Lg6 16. d4 Lh7 17. Lxh7
play all play one stop play next play all
more ...
comment
Keywords: Prenix (l), Promotion (l)
Genre: Retro
FEN: rn1qk1nr/p1pp1ppB/1p1RpQ2/8/P2P4/B4P2/P1NPPK1P/6N1
Input: fs/hg, 2020-12-30
Last update: James Malcom, 2022-08-06 more...
30 - P1384649
Jorge Joaquin Lois
Roberto Osorio

Springaren 2009-2010
6. Preis
Julturnering
P1384649
(14+15) C+
BP in 15
1. e4 a6 2. Lb5 axb5 3. d4 Ta6 4. d5 Th6 5. d6 f6 6. dxe7 Kf7 7. e8=L+ Ke7 8. Lg6 b4 9. Lf5 Ke8 10. e5 De7 11. e6 Dc5 12. e7 Kf7 13. e8=L+ Ke7 14. Leg6 hxg6 15. Kf1 Ke8
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 1 Sekunde.
Keine Lösung: BP 14.0, BP 14.5.
Notation: 1.e4 a6 2.Lb5 axb5 3.d4 Ta6 4.d5 Th6 5.d6 f6 6.dxe7 Kf7
7.e8L+ Ke7 8.Lg6 b4 9.Lf5 Ke8 10.e5 De7 11.e6 Dc5 12.e7 Kf7
13.e8L+ Ke7 14.Leg6 hxg6 15.Kf1 Ke8 (2023-03-01)
comment

Genre: Retro
Computer test: Stelvio 1.0
FEN: 1nb1kbnr/1ppp2p1/5ppr/2q2B2/1p6/8/PPP2PPP/RNBQ1KNR
Input: fs/hg, 2020-12-30
Last update: Silvio Baier, 2023-11-14 more...
31 - P1384653
Jorge Joaquin Lois
Springaren 2013-2014
4. Preis
Julturnering
P1384653
(15+16) C+
BP in 20
1. a4 h5 2. Ta3 Th6 3. Td3 Tf6 4. Td6 exd6 5. d3 Se7 6. Sd2 Sg6 7. Sb3 Sh8 8. Sa1 g6 9. b3 Lh6 10. La3 Lc1 11. e3 Kf8 12. Df3 Kg8 13. Dc6 d5 14. Lf8 d6 15. Se2 Sd7 16. Sg3 Sb6 17. Le2 Ld7 18. 0-0 Tc8 19. Sh1 Sa8 20. g3 b6
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 1 Sekunde.
Keine Lösung: BP 19.0, BP 19.5.
Notation:
1.a4 h5 2.Ta3 Th6 3.Td3 Tf6 4.Td6 exd6 5.d3 Se7 6.Sd2 Sg6 7.Sb3 Sh8
8.Sa1 g6 9.b3 Lh6 10.La3 Lc1 11.e3 Kf8 12.Df3 Kg8 13.Dc6 d5 14.Lf8 d6
15.Se2 Sd7 16.Sg3 Sb6 17.Le2 Ld7 18.0–0 Tc8 19.Sh1 Sa8 20.g3 b6 (2023-05-01)
comment

Genre: Retro
Computer test: Stelvio 1.17, 2sec
FEN: n1rq1Bkn/p1pb1p2/1pQp1rp1/3p3p/P7/1P1PP1P1/2P1BP1P/N1b2RKN
Input: fs/hg, 2020-12-30
Last update: Silvio Baier, 2023-11-14 more...
32 - P1384699
Jorge Joaquin Lois
Roberto Osorio

WCCC 2017
1. Preis
Champagner TT, Abteilung A
P1384699
(12+14) C+
BP 18
paul: 1.Sc3 a5 2.Sd5 a4 3.S×e7 L×e7 4.d4 Lg5 5.d5 Lh6 6.d6 Dh4 7.d×c7 d5 8.c4 Lf5 9.c8=L Lb1 10.Ld7+ S×d7 11.c5 0-0-0 12.c6 Kb8 13.c7+ Ka8 14.c8=S f5 15.Se7 S×e7 16.e4 The8 17.Lb5 Sf8 18.Ld7 T×d7 (2022-09-30)
comment

Genre: Retro
FEN: k3rn2/1p1rn1pp/7b/3p1p2/p3P2q/8/PP3PPP/RbBQK1NR
Input: fs/hg, 2020-12-30
Last update: fs/hg, 2020-12-30 more...
33 - P1393618
Jorge Joaquin Lois
C071 10. WCCT 2015-2017
22.-24. Platz
P1393618
(7+11) C+
#14
1. Ld8-e7! Kf3-e3 2. Le7-f6+ Ke3-f3 3. Lf6-e5 Kf3-e3 4. Le5-c3+ Ke3-f3 5. Te8-d8 Kf3-e3 6. Lc3-d2+ Ke3-f3 7. Ld2-a5 Kf3-e3 8. La5-b6+ Ke3-f3 9. Td8-d4 Kf3-e3 10. Td4-d5+ Ke3-f3 11. Td5-c5 Kf3-e3 12. Tc5-e5+ Ke3-f3 13. Lb6-e3 f4xe3 14. Te5xf5#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-09-12)
comment

Genre: n#
FEN: 3BR3/8/8/5p2/2P2pp1/3P1kpp/2P1n1pb/3BKbn1
Input: Marcin Banaszek, 2021-09-11
Last update: Marcin Banaszek, 2021-09-13 more...
34 - P1394895
Roberto Osorio
Jorge Joaquin Lois

WCCC Rhodes 10/2021
2nd Prize Champagne-TT A
P1394895
(13+13) C+
BP in 22.0
1. a2-a4 f7-f5 2. a4-a5 f5-f4 3. a5-a6 f4-f3 4. Ta1-a5 f3xg2 5. Sg1-f3 g2-g1=L 6. Lf1-h3 g7-g5 7. Lh3-f5 g5-g4 8. h2-h3 g4-g3 9. Sf3-h2 g3-g2 10. f2-f3 Lg1-d4 11. Ta5-d5 Ld4-c3 12. d2xc3 g2-g1=L 13. Lc1-f4 Lg1-c5 14. Lf4-g3 Lc5-b4 15. c3xb4 h7-h5 16. Sb1-c3 h5-h4 17. Dd1-b1 h4xg3 18. Sc3-d1 g3-g2 19. c2-c3 g2-g1=L 20. Ke1-f1 Lg1-b6 21. e2-e3 Lb6-a5 22. b4xa5 b7xa6
play all play one stop play next play all
Moldenhauer: Computerprüfung: Auch C+ Stelvio 1.11 in 37 Sekunden.
Keine Lösung: BP 21.0, BP 21.5. Notation:
1. a2-a4 f7-f5 2. a4-a5 f5-f4 3. a5-a6 f4-f3 4.Ta1-a5 f3xg2
5.Sg1-f3 g2-g1=L 6.Lf1-h3 g7-g5 7.Lh3-f5 g5-g4 8. h2-h3 g4-g3
9.Sf3-h2 g3-g2 10. f2-f3 Lg1-d4 11.Ta5-d5 Ld4-c3 12.d2xc3 g2-g1=L
13.Lc1-f4 Lg1-c5 14.Lf4-g3 Lc5-b4 15. c3xb4 h7-h5 16.Sb1-c3 h5-h4
17.Dd1-b1 h4xg3 18.Sc3-d1 g3-g2 19. c2-c3 g2-g1=L 20.Ke1-f1 Lg1-b6
21. e2-e3 Lb6-a5 22. b4xa5 b7xa6.
Welches Format braucht man im Player? Lang oder kurz? Format aus Stelvio?
Soll man die Kurzversion aus Fritz nehmen?
Danke! (2023-04-19)
comment
Keywords: Unique Proof Game, Champagne-TT (2021)
Genre: Retro
FEN: rnbqkbnr/p1ppp3/p7/P2R1B2/8/2P1PP1P/1P5N/1Q1N1K1R
Input: A.Buchanan, 2021-10-25
Last update: Silvio Baier, 2023-11-14 more...
35 - P1413815
Jorge Joaquin Lois
H4683 The Problemist 29-3, p. 108, 05/2023
P1413815
(10+13)
h#4
0.1.1...
b) wBe2->g3
a) 1. ... Sxc5 2. Kxe7 Sxe6 3. Kxe6 Lxe5 4. Kxe5 exd3#
b) 1. ... Sxf5 2. Kxd7 Sxd6 3. Kxd6 Txe5 4. Kxe5 g4#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 also (2023-11-30)
comment

Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 3k4/3NN3/ppppp1p1/1qbrppP1/8/2Pb1K1P/3PP2B/4R3
Input: Felber, Volker, 2023-11-30
Last update: Felber, Volker, 2023-11-30 more...
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