Die Schwalbe

23 problem(s) found in 5022 milliseconds (displaying 23 problem(s)). [COMMENTDATE>=20220810 AND G='Retro' AND NOT A='Satulny, Wassili I.' AND S='Quartz'] [download as LaTeX]

1 - P0001121
Michel Caillaud
4298v Die Schwalbe 80 04/1983
2. ehrende Erwähnung
P0001121
(12+14) C+
BP in 30,5
1. a4 c6 2. a5 Dc7 3. a6 De5 4. axb7 a5 5. b4 a4 6. b5 Ta5 7. b6 Sa6 8. b8=D a3 9. Dd6 a2 10. De6 dxe6 11. b7 Kd7 12. b8=T Kd6 13. Tb3 Kd5 14. Tf3 Ke4 15. Tf5 exf5 16. Sa3 Le6 17. Sb5 Lc4 18. La3 e6 19. Tc1 a1=S 20. d4 Sb3 21. d5 Sd2 22. d6 Sxf1 23. d7 Sg3 24. hxg3 Lb4+ 25. Kf1 Se7 26. Th6 Tb8 27. d8=L Sc8 28. Lh4 g5 29. g4 gxh4 30. g5 Le1 31. f3+
play all play one stop play next play all
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Keywords: Ceriani-Frolkin Theme (DTsL), Unique Proof Game, Allumwandlung, Promotion
Genre: Retro
Computer test: Moldenhauer: Computerprüfung: C+ Stelvio 1.11 63 Sekunden. Keine Lösung: BP 29.5, BP 30.0.
FEN: 1rn5/5p1p/n1p1p2R/rN2qpP1/2b1k2p/B4P2/2P1P1P1/2RQbKN1
Reprints: 12 Shortest Proof Games 11/1991
(A) Quartz 26 10-12/2004
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-04-15 more...
2 - P0001550
Michel Caillaud
421 Europe Echecs 295 07/1983
A. Hazebrouck gewidmet
1. Preis
P0001550
(13+12) C+
BP in 35.5
1. h4 c5 2. h5 c4 3. Th4 c3 4. Tc4 b5 5. g4 b4 6. Lg2 b3 7. Lc6 bxa2 8. b4 a5 9. b5 a4 10. b6 a3 11. La4 Sc6 12. b7 d5 13. b8=D d4 14. Dd6 d3 15. Dg6 dxc2 16. d3 fxg6 17. Ld2 c1=L 18. Db3 c2 19. La5 Lh6 20. Sd2 c1=L 21. Sf1 Lcg5 22. f4 Kf7 23. 0-0-0 a1=L 24. fxg5 a2 25. gxh6 Kf6 26. Sh2 Kg5 27. Tf1 Lf6 28. Tff4 a1=L 29. Kb1 Lae5 30. d4 Lb7 31. dxe5 Dd2 32. exf6 Te8 33. f7 Sf6 34. Dd3 Sd7 35. Ld1 Sdb8 36. Sgf3+
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5 Frolkin-Ceriani-Umwandlungen: 4 schwarze Läufer und 1 weiße Dame! Eine der bahnbrechenden frühen KBPs.
Silvio Baier: Der wesentliche thematische Inhalt ist bereits nach 31,5 Zügen erreicht. Bis dahin ist es C+ (Euclide 0.98). (2010-08-04)
James Malcom: Is this fully C+ then? (2021-01-27)
Henrik Juel: No, only the first 31.5 moves are tested OK (2021-01-27)
James Malcom: No Henrik, as in is the entire problem testable. (2021-01-27)
Henrik Juel: I guess that testing the entire problem would take an unreasonably long time (2021-04-06)
A.Buchanan: It might be possible these days: the motivation for stopping at 31.5 is that the promotion theme had been demonstrated by then. But there’s still e.g. bSb8 as random impostor (2021-04-07)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 50:24:34 Stunden.(hh:mm:ss)
Keine Lösung: BP 34.5, BP 35.0. (2023-05-08)
Henrik Juel: Thanks for your patience, Moldenhauer; more than two days... (2023-05-08)
comment
Keywords: Ceriani-Frolkin Theme (llllD), Unique Proof Game, Castling, Promotion (llllD), Impostor (s)
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.11 50:24:34 Stunden.(hh:mm:ss) Keine Lösung: BP 34.5, BP 35.0.
FEN: 1n2rb1r/1b2pPpp/2n3pP/B5kP/2R2RP1/3Q1N2/3qP2N/1K1B4
Reprints: 25 Shortest Proof Games 11/1991
(1) diagrammes 103 10-12/1992
(A) Quartz 22 10-12/2002
(8-a) Die Schwalbe 250A 08/2011
Input: Gerd Wilts, 1995-06-03
Last update: James Malcom, 2021-04-07 more...
3 - P0001572
Andrey Frolkin
442 Europe Echecs 313 01/1985
P0001572
(15+13) C+
BP in 16,5
1. Sc3 Sf6 2. Sd5 Se4 3. Sxe7 Sg5 4. Sg6 Lb4 5. e3 d6 6. Se2 Kd7 7. Sc3 Kc6 8. Sb1 Sd7 9. Lb5+ Kxb5 10. Sxh8 c6 11. Sxf7 Da5 12. Se5 Sb6 13. Sf3 Ld7 14. Sg1 Te8 15. f3 Te4 16. Kf2 Le8 17. Kg3
play all play one stop play next play all
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comment
Keywords: Unique Proof Game, Interchange (SS)
Genre: Retro
Computer test: Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong Ergänzung: Stelvio 1.2. Keine Lösung BP 15.5, BP 16.0.
FEN: 4b3/pp4pp/1npp4/qk4n1/1b2r3/4PPK1/PPPP2PP/RNBQ2NR
Reprints: 67 Shortest Proof Games 11/1991
(2) Quartz 21 07-09/2002
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-05-21 more...
4 - P0001577
Michel Caillaud
447 Europe Echecs 316 04/1985
2. Preis
P0001577
(14+11) C+
BP in 26,5
1. f4 h5 2. f5 h4 3. f6 h3 4. fxe7 hxg2 5. h4 g5 6. h5 g4 7. Th4 g3 8. Sh3 g1=L 9. Lg2 Le3 10. Lc6 g2 11. dxe3 g1=T+ 12. Kf2 Tg3 13. e4 Tb3 14. axb3 f5 15. Ta6 f4 16. La4 f3 17. Kg3 f2 18. Th6 f1=D 19. Dd6 Df7 20. Lf4 Dc4 21. bxc4 a5 22. Lb3 a4 23. Da6 a3 24. Ld6 a2 25. Sf4 axb1=S 26. La2 Sc3 27. bxc3
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Erstdarstellung einer Frolkin-Ceriani-Allumwandlung in einer eindeutigen KBP.
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comment
Keywords: Allumwandlung, Ceriani-Frolkin Theme (dtls), Unique Proof Game, Homebase (S)
Genre: Retro
Computer test: Euclide 0.93 Ergänzung Stelvio 1.2. Keine Lösung BP 25.5, BP 26.0.
FEN: rnbqkbnr/1pppP3/Q2B3R/7P/2P1PN1R/2P3K1/B1P1P3/8
Reprints: 13 Shortest Proof Games 11/1991
(19) diagrammes 15 07-09/1994
Thema Danicum 106 2002
(B) Quartz 26 10-12/2004
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-05-21 more...
5 - P0001634
Dmitri W. Pronkin
503v Europe Echecs 358 04/1989
5. Preis
P0001634
(12+11) C+
BP in 31,0
1. b3 h5 2. La3 h4 3. Dc1 h3 4. Kd1 hxg2 5. h4 e5 6. h5 e4 7. h6 e3 8. h7 exf2 9. e4 f5 10. Se2 g1=L 11. Lg2 f1=L 12. e5 Lb6 13. d4 Lfc5 14. dxc5 f4 15. cxb6 f3 16. Df4 f2 17. Sc1 La6 18. Lc5 f1=L 19. a3 Lfb5 20. c4 Se7 21. cxb5 Tg8 22. hxg8=L g5 23. Lc4 d5 24. bxa6 Lf5 25. e6 Sc8 26. e7 Kf7 27. e8=L+ Kg8 28. Leb5 c6 29. Ta2 cxb5 30. Tc2 Sc6 31. Sa2 dxc4+
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paul: Correction of P0001580 (2010-09-25)
Silvio Baier: Mit 30....dc+ ist das C+ (Euclide 0.98, Retractor für den letzten Zug) (2011-07-08)
James Malcom: So this is fully C+? (2021-01-27)
Henrik Juel: No, another problem in 30.0 moves ending with 30. Tc2 dxc4+ is tested OK (2021-01-27)
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Keywords: Ceriani-Frolkin Theme (lllLL), Unique Proof Game, Promotion (lllLL)
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.11 65:30:51 Stunden. (hh:mm:ss) Keine Lösung: BP 30.0, BP 30.5.
FEN: r1nq2k1/pp6/PPn5/1pB2bp1/2p2Q2/PP6/N1R3B1/1N1K3R
Reprints: 580 Ukrainisches Album 1986-1990
26 Shortest Proof Games 11/1991
H25 FIDE Album 1986-1988 1995
(H25) Die Schwalbe 156, p. 237, 12/1995
feenschach 141 06/2001
Thema Danicum 105 2002
(C) Quartz 22 10-12/2002
H2 The Problemist 07/2010
(18) Die Schwalbe 250A 08/2011
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-05-08 more...
6 - P1000406
Gianni Donati
8076 feenschach 135 01-05/2000
2. Preis
P1000406
(14+15) C+
BP in 18,5
1. c3 d6 2. Da4+ Ld7 3. b3 Sf6 4. La3 Se4 5. Lc5 Sxd2 6. e4 Sxb1 7. Lb5 Sa3 8. 0-0-0 Sc2 9. Td5 Sa1 10. Te5 d5 11. Kb2 d4 12. Ka3 d3 13. Dd4 d2 14. Kb4 d1=L 15. a3 L1g4 16. Sf3 Lc6 17. Td1 Lc8 18. Td3 L6d7 19. Lxd7+
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Henrik Juel: This fine proof game by Gianni is faster to solve by hand than by computer
Last move was not 19.Lb5xPd7+, because Sa1 did an uneven number of moves; 18.Lb5xPd7+ fails, because White needs 19 moves, since Td1-d5 must happen early. So [Pd7] has promoted, and Black must play 1... d6 and 2... Dd7 or Ld7; only the latter works
Partially tested by Natch 3.1 in 18.0 moves with wLb5 and sDTLSPd7; only L works (2018-12-14)
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Keywords: Unique Proof Game, Pronkin Theme (l)
Genre: Retro
Computer test: Computerprüfung: C+ Euclide 1.11 nach 237 Std. 28 Min. Keine Lösung bei BP 17,5 , geprüft in 1 Min. Computerprüfung: C+ auch Stevio 1.11 00:27:56 Minuten. (hh:mm:ss) Keine Lösung: BP 18.0. 4994/419k Histogramm.
FEN: rnbqkb1r/pppBpppp/8/2B1R3/1K1QP3/PPPR1N2/5PPP/n7
Reprints: Quartz 25 07-09/2004
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2023-05-14 more...
7 - P1000475
Michel Caillaud
P0056 StrateGems 10 04-06/2000
4. Preis
P1000475
(15+15) C+
BP in 18,5
1. a4 e5 2. a5 e4 3. Ta4 e3 4. Te4+ Se7 5. b4 Sbc6 6. Lb2 Sd4 7. Dc1 Sxe2 8. Lf6 Sg3 9. d4 Sgf5 10. Ke2 Sh6 11. Kf3 Shg8 12. Kg4 e2 13. Dh6 e1=S 14. Se2 Sd3 15. Sc1 Sc5 16. Ld3 Sa6 17. The1 Sb8 18. T1e3 a6 19. Txe7+
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Pronkin-Thema mit Platzwechsel: Sg8 wird auf e7 geschlagen, sSb8 wandert nach g8, umgewandelter sSe1 geht nach b8. Zyklischer Platzwechsel von sSb8, sSg8 und sBe7.
Henrik Juel: Partial testing with Natch 3.1
18.0 moves with sDTLSPe7 and wTd5; only sSe7 works (2018-12-14)
Mario Richter: @Henrik: Did you mean "... and wTe4"? (2018-12-15)
Henrik Juel: Yes, I did, Mario (2018-12-16)
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comment
Keywords: Unique Proof Game, Pronkin Theme (s), Interchange
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.2 04:02:35 Stunden. (hh:mm:ss) Keine Lösung BP 17.5, BP 18.0. Checked by Stelvio 1.2 in about 5 hours.
FEN: rnbqkbnr/1pppRppp/p4B1Q/P7/1P1P2K1/3BR3/2P2PPP/1NN5
Reprints: (7) Quartz 21 07-09/2002
feenschach 153, p. 201, 10-12/2003
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2023-05-30 more...
8 - P1000488
Thierry Le Gleuher
P0030 StrateGems 04-06/1999
Sam Loyd gewidmet
3. Preis
P1000488
(14+14) C+
BP in 25,5
1. d4 g5 2. Lf4 g4 3. Kd2 g3 4. hxg3 Sc6 5. Th6 Se5 6. Tb6 Sf3+ 7. exf3 axb6 8. Lc4 Ta3 9. Df1 Tc3 10. Sa3 h5 11. Te1 h4 12. Te6 h3 13. Tc6 dxc6 14. Ke2 Lf5 15. Le6 Da8 16. Lc8 e6 17. d5 Se7 18. d6 Sg6 19. d7+ Ke7 20. d8=T Th4 21. Td1 Sh8 22. Ta1 Kd8 23. Sb1 La3 24. Lc1 Tb4 25. Ld7 Le4 26. Dd1
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Hervorragend: Pronkin-Thema mit dem völlig eingeschlossenen wTa1, Switchback von Sb1, Lc1 und Dd1. Ein Rätsel im Geiste von Sam Loyd.
Henrik Juel: Natch 3.1 did nothing for an hour (2018-12-13)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 © Reto Aschwanden
33 Minuten, 1 Lösung, Notation OK.
Stelvio Histogramme/Strategien 40, vor der Lösung wegen der Lösezeit
mit Stelvio berechnet. (2023-02-08)
comment
Keywords: Unique Proof Game, Pronkin Theme (T), Switchback (SLD)
Genre: Retro
Computer test: Stelvio 1.0
FEN: q2k3n/1ppB1p2/1pp1p3/8/1r2b3/b1r2PPp/PPP1KPP1/RNBQ2N1
Reprints: feenschach 153 10-12/2003
A) Quartz 23 01-03/2004
H57 FIDE Album 1998-2000 2007
Input: Gerd Wilts, 2000-08-01
Last update: Silvio Baier, 2023-03-02 more...
9 - P1000823
Alexandr I. Zolotarev
8167 feenschach 137 08-09/2000
2. Preis
P1000823
(14+15)
Wer ist am Zug?
R: 1. Sf8-h7 g5-g6 2. Se6-f8 g4-g5 3. Sc5-e6 g3-g4 4. Sb3-c5 La2-b1 5. Th1-a1 Lb1-a2 6. Th4-h1 La2-b1 7. Td4-h4 Te7-d7 8. Td7-d4+ Lb1-a2 9. Sc5-b3 Te5-e7 10. Sb3-c5 Th5-e5 11. Sc5-b3 Th1-h5 12. Sb3-c5 La2-b1 13. d3-d2 Ta1-h1 14. Sc5-b3 Lb1-a2+ 15. Se6-c5 Ta2-a1 16. Sd8-e6 Ta1-a2 17. d4-d3 Sc5-b7 18. Sb7-d8+ Sd3-c5 19. Lf8-b4 Sb4-d3+ 20. e7xLf6 Lg5-f6 21. d5-d4 Lc1-g5 22. Kd4-c4 d2xSc3+
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Henrik Juel: White has the move. -1... Sf8 -2.g5 Se6 -3.g4 Sc5 -4.Sd8 Sg7 -5.Se6 Ta2 ... -9.S=h7 Ta2 ... -13.h2! h3xSg2 -14.Sf4 Ta2 ... -17.Sb3 Ta1 -18.La2 Tg1 ... -22.La2 Te7 -23.Td3 Td7 -24.Tg3 d3 -25.Tg1 d4 -26.Ta1 d5 -27.Lb1 h4 -28.Sc1 h5 -29.Sd3 Lf8 -30.Sb4 e7xLf6 -31.Lg5 d6 -32.Lc1 Kd4 -33.d2xSc3 etc. Enjoyable. (2004-01-05)
Henrik Juel: In the official solution 16.Sd8-e6 is illegal, because wKc6 is checked (this seems fixable)
My 2004 solution also works, so the problem is almost cooked (2023-07-23)
comment
Keywords: Whose move?
Genre: Retro
FEN: qN2b3/RNpR1ppn/rpK2pP1/p7/Qbk5/P1P5/1PPpPPp1/rB6
Reprints: Quartz 25 07-09/2004
Input: Gerd Wilts, 2000-10-08
Last update: Gerd Wilts, 2005-01-01 more...
10 - P1003973
Michel Caillaud
R55 Problemesis 26 04/2002
2. Preis
P1003973
(16+11) C+
BP in 18,0
1. d4 c5 2. d5 Db6 3. Dd4 Db3 4. axb3 f5 5. Ta6 f4 6. Tc6 f3 7. Sxf3 e5 8. Sxe5 a5 9. Sxd7 a4 10. bxa4 h5 11. b3 h4 12. Lb2 h3 13. Dh4 Sa6 14. f4 Sb4 15. Kf2 Sd3+ 16. Kg1 Se5 17. Sb8 Sd7 18. Sa6 Sb8
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Rundlauf des sSb8 in 6 Zügen.
Henrik Juel: Natch 3.1 found the solution quickly, but did not finish in more than an hour (2018-12-16)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 nach nur 1 Sekunde. (2023-02-09)
Henrik Juel: and no solution in 17.5 moves, so C++ Stelvio 1.0 (2023-02-09)
Henrik Juel: Fine motivation for the round trip: making room for white Sd7-b8-a6 (2023-02-09)
comment
Keywords: Unique Proof Game, Pure Round Trip (s)
Genre: Retro
Computer test: Stelvio 1.0
FEN: rnb1kbnr/1p4p1/N1R5/2pP4/P4P1Q/1P5p/1BP1P1PP/1N3BKR
Reprints: feenschach 153 10-12/2003
(H) Quartz 28 07-09/2005
Input: Gerd Wilts, 2002-03-31
Last update: Silvio Baier, 2023-03-02 more...
11 - P1004179
Arpad Molnar
R275 The Problemist 05/1998
4. ehrende Erwähnung
P1004179
(11+10) cooked
Letzte 12 Einzelzüge?
R: 1. a4xSb3+ Dd8-b6 2. b6xSa5 Tc8-c6 3. c7xSb6 Lc6-b5 4. b5xSa4 Sa8-b6 5. b6-b5 Lb7-c6 6. Kb5-b4 c3-c4+
play all play one stop play next play all
Gerald Ettl: Wie lautet der Cook? (2023-09-28)
comment
Keywords: Ceriani-Frolkin Theme (SSSS), Last Moves? (12)
Genre: Retro
FEN: 1N6/p2p1ppp/RQRp4/pBNP4/1kP5/bp6/PPK5/8
Reprints: (1) Quartz 18 10-12/2001
Input: Gerd Wilts, 2002-09-05
Last update: Gerd Wilts, 2004-08-28 more...
12 - P1013094
Paul Raican
Andrey Frolkin

12182 Die Schwalbe 205 02/2004
P1013094
(13+12) C+
BP in 28,5
1. a4 h5 2. a5 h4 3. a6 h3 4. Ta5 hxg2 5. h4 Th6 6. h5 Tb6 7. h6 g5 8. h7 g4 9. Tg5 f5 10. h8=D f4 11. De5 f3 12. Db5 fxe2 13. f4 g3 14. Sf3 g1=L 15. Lh3 Lc5 16. d4 g2 17. Kd2 e1=T 18. dxc5 Te3 19. c6 Ta3 20. bxa3 d5 21. Kc3 d4+ 22. Kb2 d3 23. Sd4 d2 24. Df3 dxc1=S 25. Td1 Sb3 26. cxb3 g1=D 27. Sc2 Dgd4+ 28. Ka2 Da4 29. bxa4
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.5 in 00:25:47 Minuten. (hh:mm:ss)
Keine Lösung: BP 28.0. Stelvioprüfung mit 8 Seekern/2 Playern.
Notation: 1.a4 h5 2.a5 h4 3.a6 h3 4.Ta5 hxg2 5.h4 Th6 6.h5 Tb6 7.h6 g5
8.h7 g4 9.Tg5 f5 10.h8=D f4 11.De5 f3 12.Db5 fxe2 13.f4 g3 14.Sf3 g1=L
15.Lh3 Lc5 16.d4 g2 17.Kd2 e1=T 18.dxc5 Te3 19.c6 Ta3 20.bxa3 d5
21.Kc3 d4+ 22.Kb2 d3 23.Sd4 d2 24.Df3 dxc1=S 25.Td1 Sb3 26.cxb3 g1=D
27.Sc2 Dgd4+ 28.Ka2 Da4 29.bxa4 (2023-08-31)
Olaf Jenkner: Wieso cooked? (2023-08-31)
comment
Keywords: Allumwandlung, Ceriani-Frolkin Theme (dtls), Unique Proof Game
Genre: Retro
Computer test: Stelvio 1.5 in 00:25:47
FEN: rnbqkbn1/ppp1p3/PrP5/1Q4R1/P4P2/P4Q1B/K1N5/1N1R4
Reprints: 12182v Die Schwalbe 208 08/2004
(I) Quartz 26 10-12/2004
Input: Gerd Wilts, 2004-02-24
Last update: Silvio Baier, 2023-11-14 more...
13 - P1067375
Paul Raican
The Problemist 09/2004
P1067375
(14+14) C+
BP in 25,0
1. g4 d5 2. g5 Lf5 3. g6 hxg6 4. Sc3 Th3 5. Se4 Tb3 6. axb3 Dd7 7. Ta6 Da4 8. Tf6 Sa6 9. h4 Td8 10. h5 Td6 11. h6 Tc6 12. h7 Tc3 13. dxc3 gxf6 14. Le3 Lh6 15. Lb6 Lc1 16. e3 d4 17. Lc4 d3 18. Dh5 d2+ 19. Ke2 d1=T 20. Sf3 Td8 21. Td1 Ta8 22. Td6 Lc8 23. Da5 Dd7 24. Se5 Dd8 25. Sd7 Sb8
play all play one stop play next play all
Henrik Juel: Natch 3.1 did nothing in half an hour
Hard to see that Ta8 is promoted (2018-12-20)
paul: Stelvio found the solution. Then I skipped the strategies with d1=Q and d1=B. HC+ (2023-02-05)
ras@bsiag.com: In fact C+ with Stelvio 1.0 in 25min (2023-02-06)
comment
Keywords: Unique Proof Game, Pronkin Theme (t), Promotion (t)
Genre: Retro
Computer test: Stelvio 1.0
FEN: rnbqk1n1/pppNpp1P/1B1R1pp1/Q7/2B1N3/1PP1P3/1PP1KP2/2b5
Reprints: (E) Quartz 25 07-09/2004
Input: Gerd Wilts, 2005-01-01
Last update: Silvio Baier, 2023-03-03 more...
14 - P1068378
Gianni Donati
The Problemist Supplement 2001-2002
1. Preis, TT3
P1068378
(15+13) C+
BP in 20,0
1. e3 Sf6 2. Lb5 Sd5 3. Lc6 dxc6 4. Ke2 Dd6 5. Kd3 Dg3 6. hxg3 h6 7. Txh6 f5 8. Tf6 Th4 9. Se2 Tc4 10. Dh1 Tc3+ 11. bxc3 Sb6 12. La3 Sc4 13. Ld6 Sa5 14. Sa3 Sb3 15. Tb1 Sd4 16. Tb4 Se6 17. Tg4 Sd8 18. Tgg6 Sf7 19. g4 Sh6 20. Sg3 Sg8
play all play one stop play next play all
12-zügiger Rundlauf des sSg8, der früh nach d5 spielen muß, um Schachschutz zu geben.
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 01:13:11 Stunde.
Keine Lösung: BP 19.0, BP 19.5. (2023-03-01)
comment
Keywords: Unique Proof Game, Pure Round Trip (s12), Check Protection
Genre: Retro
Computer test: Stelvio 1.0
FEN: rnb1kbn1/ppp1p1p1/2pB1RR1/5p2/6P1/N1PKP1N1/P1PP1PP1/7Q
Reprints: (B) Quartz 28 07-09/2005
Input: Gerd Wilts, 2006-03-12
Last update: Silvio Baier, 2023-03-02 more...
15 - P1068380
Michel Caillaud
The Problemist Supplement 2001-2002
4. ehrende Erwähnung, TT3
P1068380
(15+13) C+
BP in 21,0
1. e4 a5 2. Ke2 Ta6 3. Kf3 Tc6 4. Kg4 Tc3 5. dxc3 Sc6 6. Le3 Sa7 7. Lc5 Sb5 8. Dd4 Sd6 9. Sd2 Sf5 10. Te1 d6 11. Te3 Le6 12. Th3 Lb3 13. Th6 gxh6 14. cxb3 Lg7 15. b4 Le5 16. Sb3 Lg3 17. hxg3 Sg7 18. Th5 Se6 19. Kh3 Sf8 20. Kh2 Sd7 21. Kh1 Sb8
play all play one stop play next play all
10-zügiger Rundlauf des sSb8 zwecks Schachschutz auf f5
Henrik Juel: Natch 3.1 produced little in an hour (2018-12-16)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:34:52 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.0, BP 20.5. Histogramm 44/0k. (2023-03-16)
comment
Keywords: Unique Proof Game, Pure Round Trip (s10), Check Protection
Genre: Retro
Computer test: Stelvio 1.11
FEN: 1n1qk1nr/1pp1pp1p/3p3p/p1B4R/1P1QP3/1NP3P1/PP3PP1/5BNK
Reprints: (D) Quartz 28 07-09/2005
Input: Gerd Wilts, 2006-03-12
Last update: Silvio Baier, 2023-03-20 more...
16 - P1068381
Paul Raican
Vlaicu Crisan

624 Quartz 28 07-09/2005
P1068381
(14+13) C+
BP in 15,0
1. d4 c6 2. d5 Db6 3. d6 Dc7 4. dxc7 d6 5. cxb8=S Lf5 6. Sd7 0-0-0 7. Sf6 gxf6 8. g3 Lh6 9. g4 Lf4 10. g5 Sh6 11. g6 Thg8 12. gxh7 Tg5 13. h8=S Lh7 14. Sg6 Lg8 15. Se5 dxe5
play all play one stop play next play all
paul: 11.Thg8 (2022-09-16)
comment
Keywords: Ceriani-Frolkin Theme (SS), Unique Proof Game, Homebase (w), Tempo Loss
Genre: Retro
Computer test: Resolution time : 1 mn 54.73 s., Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong
FEN: 2kr2b1/pp2pp2/2p2p1n/4p1r1/5b2/8/PPP1PP1P/RNBQKBNR
Input: Gerd Wilts, 2006-03-12
Last update: Mario Richter, 2022-09-16 more...
17 - P1068530
Satoshi Hashimoto
Probleemblad 06/2005
P1068530
(16+16) C+
BP in 24,0
1. g4 d5 2. Lg2 d4 3. Lc6+ Sd7 4. Lb5 c6 5. f3 Da5 6. Kf2 Sb6 7. Kg3 Kd7 8. Kh4 g5+ 9. Kh5 Lg7 10. Sa3 Le5 11. Sc4 Sf6+ 12. Kh6 Ke6 13. Kg7 Sg8+ 14. Kf8 Lg7+ 15. Ke8 Lf8 16. Kd8 Ld7+ 17. Kc7 Td8 18. a3 Lc8 19. Kb8 Kd7 20. Se5+ Ke8 21. c4 Td6 22. Da4 Sd7+ 23. Ka8 Dd8 24. Da5 Sb8
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 1 (2018-12-22)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:05:37 Minuten. (hh:mm:ss)
Keine Lösung: BP 23.0, BP 23.5. (2023-04-02)
comment
Keywords: Unique Proof Game, Switchback (sldkls), Capture-free, Königswanderung
Genre: Retro
Computer test: Stelvio 1.11
FEN: Knbqkbnr/pp2pp1p/2pr4/QB2N1p1/2Pp2P1/P4P2/1P1PP2P/R1B3NR
Reprints: (H) Quartz 29 01-06/2006
53 64 Proof Games 2012
Input: Gerd Wilts, 2006-08-11
Last update: Silvio Baier, 2023-04-05 more...
18 - P1097036
Satoshi Hashimoto
P0262 StrateGems 49 01-03/2010
3. ehrende Erwähnung
P1097036
(14+14) C+
BP in 24,5
1. Sc3 d5 2. Se4 Lh3 3. Sf6+ exf6 4. c4 Ld6 5. c5 Lf4 6. c6 Dd6 7. cxb7 c5 8. e4 c4 9. e5 c3 10. e6 c2 11. e7 Kd7 12. e8=S Se7 13. Sc7 Tc8 14. Sb5 Tc3 15. Sa3 Kc7 16. Sb1 cxb1=L 17. gxh3 Lf5 18. h4 Lc8 19. h3 Sd7 20. b8=S a5 21. Sc6 Tb8 22. Sd4 Tb4 23. Sc2 Td4 24. Sa3 Db4 25. Sb1
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 1 (2018-12-28)
Moldenhauer: Computerprüfung: Keine Lösung: BP 23.5, BP 24.0 (2023-04-19)
comment
Keywords: Unique Proof Game, Pronkin Theme (SSl)
Genre: Retro
Computer test: Stelvio 1.17, 10:05min
FEN: 2b5/2knnppp/5p2/p2p4/1q1r1b1P/2r4P/PP1P1P2/RNBQKBNR
Reprints: (9) Quartz 35 08/2010
60 64 Proof Games 2012
Input: Gerd Wilts, 2009-12-29
Last update: Reto, 2023-04-17 more...
19 - P1357876
Kostas Prentos
Andrey Frolkin

P0462v StrateGems 84 10-12/2018
P1357876
(13+11)
KBP 18.5
Provokateure
'Quartz' (P. Raican): "The proof game is a correction of one published in Problemaz, December 2008, which was the last issue of this interesting chess magazine, edited by Abdelaziz Onkoud. The authors recently demolished the original problem with Jacobi. Lecturers are invited to solve this PG, even with the help of Labelle's program. After 10 years, the cook-hunters are now able to verify, even partially, the problems collected in this article, using the remarkable program Jacobi."
(mri: A small remark: 10 years ago it was already possible to "verify, even partially" at least some of the "Provocateur" PGs using 'rawbats').
Kostas Prentos: Solution:
1. h4 a5 2. h5 a4 3. h6 a3 4. hxg7 axb2 5. Th6 Ta3 6. Te6 Td3 7. a4 h5 8. a5 h4 9. Ta4 h3 10. Sa3 b1=D 11. Lb2 h2 12. Le5 hxg1=D 13. Lh2 Thh3 14. gxh3 f6 15. Lxg1 Kf7 16. Lg2 Kg6 17. Lc6 bxc6 18. cxd3 Lb7 19. Dxb1
C+ Jacobi v0.4.8 (711046 sec) (2022-12-08)
comment
Keywords: Unique Proof Game, Provocateurs
Genre: Retro, Fairies
FEN: 1n1q1bn1/1bppp1P1/2p1Rpk1/P7/R7/N2P3P/3PPP2/1Q2K1B1
Reprints: P11 Quartz 46, p. 792, 10/2018
Input: Mario Richter, 2018-11-20
Last update: Marcin Banaszek, 2019-08-07 more...
20 - P1384630
Nicolas Dupont
Quartz 2007
4. Preis
Raican-50-JT
P1384630
(16+13) C+
BP in 16
1. e4 b5 2. Lxb5 Sc6 3. d3 d5 4. Lg5 Lg4 5. Lxe7 Lf3 6. La3 Lb4+ 7. Sd2 Sge7 8. c4 0-0 9. Da4 Te8 10. Dxa7 Kf8 11. De3 Ta4 12. Se2 Da8 13. 0-0-0 Sb8 14. Sb1 Le1 15. Tf1 Tb4 16. Sg1 Sg8
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 4 Sekunden.
Keine Lösung: BP 15.0, BP 15.5.
Notation: 1.Be4 Bb5 2.Lxb5 Sc6 3.Bd3 Bd5 4.Lg5 Lg4 5.Lxe7 Lf3 6.La3 Lb4+
7.Sd2 Sge7 8.Bc4 O-O 9.Da4 Te8 10.Dxa7 Kf8 11.De3 Ta4 12.Se2 Da8
13.O-O-O Sb8 14.Sb1 Le1 15.Tf1 Tb4 16.Sg1 Sg8. (2023-02-19)
comment

Genre: Retro
Computer test: Stelvio 1.0
FEN: qn2rkn1/2p2ppp/8/1B1p4/1rP1P3/B2PQb2/PP3PPP/1NKRbRN1
Input: fs/hg, 2020-12-30
Last update: Silvio Baier, 2023-11-14 more...
21 - P1384631
Eric Pichouron
Quartz 2007-2009
1. Preis
P1384631
(14+12) C+
BP in 19.5
1. f4 Sc6 2. Kf2 Sd4 3. Kg3 Sxe2+ 4. Kh4 Sxc1 5. h3 Sd3 6. cxd3 c5 7. d4 c4 8. Ld3 c3 9. Se2 c2 10. Dg1 c1=S 11. Dh2 Sb3 12. Tc1 Sa5 13. Txc8 Sc6 14. Txa8 Sb8 15. Sbc3 Da5 16. Te1 Kd8 17. Sc1 Kc7 18. Te5 Sc6 19. Th5 Se5 20. dxe5
play all play one stop play next play all
more ...
comment

Genre: Retro
Computer test: C+ Stelvio 1.6 ca. 20 Min. Keine Lösung: BP 19.0.
FEN: R4bnr/ppkppppp/8/q3P2R/5P1K/2NB3P/PP1P2PQ/2N5
Input: fs/hg, 2020-12-30
Last update: A.Buchanan, 2023-12-08 more...
22 - P1384633
Michel Caillaud
Quartz 2007-2009
3. Preis
P1384633
(14+16) C+
BP 18
more ...
comment

Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.6 in 8 Min. Keine Lösung: BP 17.5. 1.d4 d5 2.Dd3 Lg4 3.Dg6 hxg6 4.Lg5 Th3 5.Lf6 Td3 6.g3 exf6 7.Lg2 Lb4+ 8.Kf1 Le1 9.a4 Td1 10.Sa3 Tb1 11.e4 Ld1 12.h4 Lb4 13.h5 Lf8 14.h6 c5 15.h7 Da5 16.h8=D Dc3 17.Dh6 Lg4+ 18.Dc1 Lc8
FEN: rnb1kbn1/pp3pp1/5pp1/2pp4/P2PP3/N1q3P1/1PP2PB1/RrQ2KNR
Input: fs/hg, 2020-12-30
Last update: A.Buchanan, 2023-12-16 more...
23 - P1384639
Mario Richter
Quartz 2010-2012
2. Preis
P1384639
(13+14) C+
BP 19.5
LaTeX-import:
Author not uniquely identified: Raícan, Paul
more ...
comment

Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.6 in 10 Sek. Keine Lösung: BP 19.0, BP 18.5. 1.b4 a5 2.b5 a4 3.b6 cxb6 4.f4 Dc7 5.f5 Df4 6.f6 gxf6 7.Lb2 Lh6 8.Le5 Lg5 9.c3 h6 10.Dc2 Lh4+ 11.Kd1 Le1 12.h4 Dxf1 13.Sf3 Dg1 14.Sh2 Lf2+ 15.Sf1 Lc5 16.h5 Ld6 17.Th4 Lc7 18.Tc4 Ld8 19.Txc8 Sc6 20.Txd8+
FEN: r2Rk1nr/1p1ppp2/1pn2p1p/4B2P/p7/2P5/P1QPP1P1/RN1K1Nq1
Input: fs/hg, 2020-12-30
Last update: A.Buchanan, 2023-12-16 more...
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