Die Schwalbe

24 problem(s) found in 7281 milliseconds (displaying 24 problem(s)). [COMMENTDATE>=20220810 AND G='Retro' AND NOT K='Schnoebelen-Thema' AND K='Schlagfrei'] [download as LaTeX]

1 - P0001762
Ivan Arandjelovic
2123 diagrammes 90 07-09/1989
P0001762
(16+16) cooked
BP in 16,0
1. e3 Sc6 2. La6 b5 3. Lb7 Tb8 4. La8 La6 5. a4 Tb7 6. Ta3 Db8 7. Td3 Kd8 8. Td6 Kc8 9. d3 Sd8 10. Tb6 c6 11. Ld2 Kc7 12. Lc3 Kd6 13. Lf6 Kc5 14. Sc3 Kb4 15. Dg4+ Ka5 16. Sce2 De5
play all play one stop play next play all
Cook: 1. d3 b5 2. Lg5 La6 3. e3 Sc6 4. Dg4 Db8 5. Le2 Db6 6. Lf3 0-0-0 7. a4 Kb7 8. Ta3 Dc5 9. Sc3 De5 10. Sce2 Kb6 11. Tc3 Tb8 12. Lf6 Sd8 13. La8 Tb7 14. Tc6+ Ka5 15. Tb6 c6
Moldenhauer: Ergänzung: Stelvio 1.2. Keine Lösung: BP 14.0, BP 14.5.
BP 15.0 und BP 15.5 cooked.
Notation BP 15.0: 1.Sc3 Sc6 2.a4 b5 3.Ta3 La6 4.d3 Db8 5.Lg5 Db6 6.Lf6 0–0–0
7.e3 Kb7 8.Dg4 Dc5 9.Le2 Kb6 10.Lf3 Ka5 11.Sce2 Tb8 12.Tc3 Sd8 13.La8 De5
14.Tc6 Tb7 15.Tb6 c6
Notation BP 15.5: 1.Sc3 Sc6 2.a4 b5 3.Ta2 La6 4.Ta3 Db8 5.d3 Db6 6.Lg5 0–0–0
7.e3 Kb7 8.Dg4 Dc5 9.Le2 Kb6 10.Lf3 Ka5 11.Sce2 Tb8 12.Tc3 Sd8 13.La8 De5
14.Tc6 Tb7 15.Tb6 c6 16.Lf6.
Alles schlagfrei und ohne Umwandlung. (2023-05-20)
comment
Keywords: Unique Proof Game, Capture-free
Genre: Retro
FEN: B2n1bnr/pr1ppppp/bRp2B2/kp2q3/P5Q1/3PP3/1PP1NPPP/4K1NR
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2014-05-23 more...
2 - P0002762
Alexander Kislyak
1180 Phénix 17 06/1992
P0002762
(16+16) C+
BP in 23,0
1. c4 c5 2. Db3 Db6 3. Dh3 Dh6 4. b3 b6 5. La3 La6 6. Lb4 Lb5 7. Sa3 Sa6 8. 0-0-0 0-0-0 9. Kb1 Kb8 10. Tc1 Tc8 11. Tc3 Tc6 12. Tg3 Tg6 13. Tg4 Tg5 14. g3 g6 15. Lg2 Lg7 16. Ld5 Ld4 17. Sf3 Sf6 18. Tc1 Tc8 19. Tc3 Tc6 20. Te3 Te6 21. Te4 Te5 22. Tef4 Tef5 23. e4 e5
play all play one stop play next play all
more ...
comment
Keywords: Unique Proof Game, Castling (wgsg), Symmetrical position, Capture-free
Genre: Retro
Computer test: Mondenhauer C+ Stelvio 1.11 00:09:39 Minuten. (hh:mm:ss) Keine Lösung: BP 22.0, BP 22.5.
FEN: 1k6/p2p1p1p/np3npq/1bpBprr1/1BPbPRR1/NP3NPQ/P2P1P1P/1K6
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-03-27 more...
3 - P0005339
Bror Larsson
4339 The Fairy Chess Review 3 28/11/1939
P0005339
(16+16) C+
KBP?
#1
1. a4 a5 2. Ta3 Ta6 3. Tf3 Th6 4. b3 b6 5. La3 La6 6. Lb4 Lb5 7. Sa3 Sa6 8. Da1 Da8 9. Kd1 Kd8 10. Kc1 Kc8 11. Kb2 Kb7 12. Kc3 Kc6 13. Kd4 Th4+ 14. Ke5 h5 15. Kf5 Kd5 16. Kg5 Ke4 17. Tf5 Tf4 18. h4 Th6 19. Th3 Td6 20. Tg3 Sh6 21. Sh3
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 1 Sekunde.
Keine Lösung: BP 19.5, BP 20.0.
KBP = 20.5, #1 = Te3#. (2023-05-10)
comment
Keywords: Unique Proof Game, Quasi-symmetrical position, Capture-free
Genre: Retro
Computer test: Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong
FEN: q4b2/2ppppp1/np2r2n/pb3RKp/PB2kr1P/NP4RN/2PPPPP1/Q4B2
Reprints: La Genesi delle Posizioni 1961
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2014-05-22 more...
4 - P0007041
Noam D. Elkies
3408 U.S. Problem Bulletin 102/103 07-10/1995
P0007041
(16+16) C+
BP in 16,0
1. c3 g5 2. Da4 g4 3. Df4 d5 4. h3 d4 5. Dh2 g3 6. Kd1 Lg4 7. Kc2 e6 8. Kd3 Lb4 9. Ke4 c5 10. Ke5 Sc6+ 11. Kf4 Df6+ 12. Ke4 Sge7 13. Kd3 0-0 14. Kc2 Kh8 15. Kd1 Tg8 16. Ke1 Taf8
play all play one stop play next play all
Moldenhauer: Ergänzung: Stelvio 1.2. Keine Lösung BP 15.0, BP 15.5. (2023-05-20)
comment
Keywords: Unique Proof Game, Castling, Tempo Loss (K11), Capture-free
Genre: Retro
Computer test: Stelvio 1.2, 27sec
FEN: 5rrk/pp2np1p/2n1pq2/2p5/1b1p2b1/2P3pP/PP1PPPPQ/RNB1KBNR
Input: Gerd Wilts, 1996-08-12
Last update: Reto, 2023-05-14 more...
5 - P1000170
Andrej N. Kornilow
7 Die Schwalbe 169, p. 342, 02/1998
2. Lob
P1000170
(16+16) C+
KBP?
1. h4 a5 2. h5 a4 3. h6 a3 4. Th5 Ta4 5. Ta5 Th4 6. b4 g5 7. Lb2 Lg7 8. Ld4 Le5 9. Sc3 Sf6 10. Db1 0-0 11. Db3 Kh8 12. 0-0-0 Tg8 13. Kb1 Tg6 14. Ka1 Dg8 15. Tb1 Se8 16. Sd1 Td6 17. Dd3 Dg6 18. Tb3 De6 19. Dg6 Lf6 20. Te3 Db3 21. Lc3 Tdd4 22. Tee5 Sd6 23. Se3
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.31 89 Sekunden.
Keine Lösung: BP 22.0. (2023-06-20)
more ...
comment
Keywords: Unique Proof Game, Symmetrical position, Capture-free
Genre: Retro
Computer test: Natch 3.1 (13 min.)
FEN: 1nb4k/1ppppp1p/3n1bQP/R3R1p1/1P1r3r/pqB1N3/P1PPPPP1/K4BN1
Input: Gerd Wilts, 2000-08-01
Last update: Alfred Pfeiffer, 2018-12-19 more...
6 - P1003967
Alexandre Leroux
R49 Problemesis 26 04/2002
Lob
P1003967
(16+16) C+
BP in 24,0
1. e4 a5 2. La6 Sc6 3. c4 Sd4 4. Da4 Se2 5. d4 h5 6. Sd2 Th6 7. Sf1 Tg6 8. Lh6 e5 9. f4 Lc5 10. Sf3 Sg1 11. 0-0-0 Dh4 12. Td2 Df2 13. h4 Ke7 14. Th3 d5 15. S3h2 Lg4 16. Tb3 Ld1 17. Tb6 Tg3 18. b4 g5 19. Tg6 f5 20. Tg7+ Kf6 21. Dd7 b5 22. a4 Ta3 23. g4 Lb6 24. Sg3 c5
play all play one stop play next play all
Henrik Juel: Natch 3.1 produced nothing in some 8 hours (2018-12-16)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 3 Sekunden.
Keine Lösung: BP 23.0, BP 23.5. (2023-04-02)
comment
Keywords: Unique Proof Game, Ornament, Capture-free
Genre: Retro
Computer test: Stelvio 1.2, 5sec
FEN: r5n1/3Q2R1/Bb3k1B/pppppppp/PPPPPPPP/r5N1/3R1q1N/2Kb2n1
Input: Gerd Wilts, 2002-03-31
Last update: Reto, 2023-05-20 more...
7 - P1004001
Michel Caillaud
R0093 StrateGems 17 01-03/2002
Gianni Donati gewidmet
2.-4. Preis ex aequo
P1004001
(16+16) C+
BP in 20,5
1. Sc3 e5 2. Sd5 Df6 3. Se7 d5 4. e4 Lf5 5. De2 Sd7 6. Da6 Td8 7. De6 Sb6 8. Dc8 Sh6 9. Sc6 Lb4 10. Da8 Lc3 11. Sb8 Td6 12. Lb5+ Kd8 13. Ld7 Tc6 14. Lc8 Tc5 15. Sd7 Dc6 16. Sf6 Te8 17. Sg4 Te6 18. Se3 Tg6 19. Sc4 Tg4 20. Sa3 Lg6 21. Sb1
play all play one stop play next play all
Spektakuläre Wanderung des wSb1 über e7 nach b8 und zurück zwecks Schachschutz.
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 33:18 Minuten.
Keine Lösung BP 20.0, BP 19.5.
Bitte Notation richtigstellen: 19.Sc4 Tg5 (2023-02-13)
comment
Keywords: Unique Proof Game, Promenade (S), Capture-free
Genre: Retro
Computer test: Stelvio 1.0
FEN: Q1Bk4/ppp2ppp/1nq3bn/2rpp1r1/4P3/2b5/PPPP1PPP/RNB1K1NR
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2002-04-05
Last update: Silvio Baier, 2023-03-02 more...
8 - P1007309
Satoshi Hashimoto
R82 Problemesis 32 04/2003
2. ehrende Erwähnung
P1007309
(16+16) C+
BP in 25,0
1. d3 Sf6 2. Le3 Sd5 3. Kd2 Sb6 4. Kc3 a6 5. Kb4 Ta7 6. Sc3 Sa8 7. Lb6 Tg8 8. e3 Th8 9. Dg4 Tg8 10. Dc4 Th8 11. g4 Tg8 12. Lg2 Th8 13. Ld5 Tg8 14. Sf3 Th8 15. Tag1 Tg8 16. Tg3 Th8 17. Th3 Tg8 18. Th5 Th8 19. h4 Tg8 20. Th3 Th8 21. Sh2 Tg8 22. Tf3 Th8 23. Tf4 Tg8 24. Td4 Th8 25. f4 Tg8
play all play one stop play next play all
Henrik Juel: Natch 3.1 did almost nothing in half an hour (2018-12-18)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 39 Std. 40 Min.
Obwohl nur 2 Strategien im Histogramm standen! (2023-02-10)
Moldenhauer: Keine Lösung BP 24.0, BP 24.5, Zeit ca. 20:15 Stunden. (2023-02-11)
comment
Keywords: Unique Proof Game, Pendulum (t x19), Capture-free
Genre: Retro
Computer test: C+ Stelvio v1.03
FEN: nnbqkbr1/rppppppp/pB6/3B3R/1KQR1PPP/2NPP3/PPP4N/8
Reprints: 46 64 Proof Games 2012
Input: Gerd Wilts, 2003-04-01
Last update: James Malcom, 2023-05-04 more...
9 - P1011855
Satoshi Hashimoto
R120 Problemesis 36 12/2003
P1011855
(16+16) C+
BP in 17,0
1. a4 h5 2. Ta3 Th6 3. Tg3 Tf6 4. Tg6 e6 5. Th6 Le7 6. Th8 Th6 7. b3 Lh4 8. Lb2 Dg5 9. Ld4 Ke7 10. Sc3 Sf6 11. Td8 d6 12. Td7+ Ke8 13. Sd5 Sg8 14. c3 Dd8 15. Dc2 Le7 16. h4 Lf8 17. Se7 Th8
play all play one stop play next play all
Henrik Juel: Natch 3.1 found nothing in some 2 hours (2018-12-18)
ras@bsiag.com: Checked this quickly, because its fun to watch: C+ by Stelvio 1.0 in 3min. (2023-02-10)
comment
Keywords: Unique Proof Game, Switchback (dklst), Capture-free
Genre: Retro
Computer test: Stelvio 1.0
FEN: rnbqkbnr/pppRNpp1/3pp3/7p/P2B3P/1PP5/2QPPPP1/4KBNR
Reprints: 47 64 Proof Games 2012
Input: Gerd Wilts, 2003-12-12
Last update: Silvio Baier, 2023-03-02 more...
10 - P1013069
Satoshi Hashimoto
R47 Problemesis 2001
2. ehrende Erwähnung
P1013069
(16+16) C+
BP in 20,0
1. a4 f5 2. a5 f4 3. Ta4 f3 4. Tf4 e6 5. d4 Ld6 6. Tf8+ Ke7 7. Lg5+ Sf6 8. Kd2 Sc6 9. Ke3 Se5 10. Kf4 c5 11. e3 Dc7 12. La6 b5 13. Se2 Lb7 14. Tb8 Tc8 15. Sc1 Dd8 16. De2 Tc7 17. Td1 Lc8 18. Lb7 Ke8 19. a6 Sg8 20. Lf6 Lf8
play all play one stop play next play all
Switchback von Lc8, Dd8, Ke8, Lf8, Sg8.
Richter Thierry Le Gleuher: "Un bon problème où les 5 switchbacks noirs ont le mérite d'être réalisés sans aucune capture."
Henrik Juel: Natch 3.1 found nothing in more than half an hour (2018-12-15)
Moldenhauer: Keine Lösung: BP 19.0, BP 19.5. (2023-05-01)
comment
Keywords: Unique Proof Game, Switchback (ldkls), Capture-free
Genre: Retro
Computer test: Stelvio 1.17, 2sec
FEN: rRbqkbn1/pBrp2pp/P3pB2/1pp1n3/3P1K2/4Pp2/1PP1QPPP/1NNR4
Input: Gerd Wilts, 2004-02-01
Last update: Reto, 2023-04-17 more...
11 - P1013081
Rustam Ubaidullajew
R228 Probleemblad 02/2004
2. Lob
P1013081
(16+16) C+
BP in 21,5
1. Sc3 f6 2. Sd5 Kf7 3. c3 Ke6 4. Da4 Ke5 5. b3 e6 6. Lb2 Lb4 7. 0-0-0 d6 8. De8 c6 9. Kc2 Da5 10. Kd3 b6 11. Ke3 La6 12. Kf3 Lc4 13. Kg4 Sh6+ 14. Kh5 Sg4 15. La1 h6 16. Kg6 a6 17. Kf7 g6 18. Ke7 Ta7+ 19. Kd8 Tg7 20. Kc8 Sd7 21. Kb7 Th7 22. Ka8
play all play one stop play next play all
Langer Marsch des wK nach a8 über den Königsflügel, da der Damenflügel zugemauert ist, in einer schlaglosen BP.
Henrik Juel: Natch 3.1 did nothing in more than an hour (2018-12-19)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:08:53 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.5, BP 21.0. (2023-03-22)
comment
Keywords: Unique Proof Game, Promenade (K), Capture-free
Genre: Retro
Computer test: Stelvio 1.11
FEN: K3Q3/3n2rr/pppppppp/q2Nk3/1bb3n1/1PP5/P2PPPPP/B2R1BNR
Input: Gerd Wilts, 2004-02-20
Last update: Silvio Baier, 2023-03-27 more...
12 - P1013119
Rustam Ubaidullajew
4409 Phénix 124 12/2003
P1013119
(16+16) C+
BP in 22,0
1. h4 Sf6 2. Th3 Sd5 3. Tc3 f6 4. Tc5 Kf7 5. c4 Ke6 6. Dc2 Ke5 7. Df5+ Kd4 8. d3 a5 9. Lf4 Ta6 10. Sd2 Te6 11. Ld6 Sb4 12. f4 S4c6 13. Kf2 Se5 14. Kg3 Sf7 15. Kg4 Sh6+ 16. Kh5 Sg8 17. g4 h6 18. Kg6 Ke3 19. h5 Kf2 20. Sh3+ Kg3 21. Sf2 Kh4 22. Sh1 De8+
play all play one stop play next play all
8zügiger Rundlauf des sSg8 zwecks Schachschutz auf d5.
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (s), Check Protection, Capture-free
Genre: Retro
Computer test: Computerprüfung: C+ Stevio 1.0 34 Sekunden. Keine Lösung: BP 21.0, BP 21.5.
FEN: 1nb1qbnr/1pppp1p1/3BrpKp/p1R2Q1P/2P2PPk/3P4/PP1NP3/R4B1N
Input: Gerd Wilts, 2004-03-13
Last update: A.Buchanan, 2023-03-13 more...
13 - P1013128
Dmitri Baibikow
R135 Problemesis 38 04/2004
P1013128
(16+16) C+
BP in 23,0
1. a4 a5 2. Ta3 Ta6 3. Tb3 Th6 4. Tb6 d6 5. b4 Le6 6. Lb2 La2 7. c4 g6 8. Dc2 Lg7 9. Kd1 Lc3 10. d4 Sf6 11. Sd2 Se4 12. Sb3 Sd2 13. e4 e6 14. Ld3 Ke7 15. Se2 Kf6 16. Tf1 Kg5 17. f4+ Kh4 18. Tf3 Dg5 19. Tg3 Dd5 20. Tg5 c5 21. g4 Kh3 22. Tc6 Kg2 23. h4 Kh1
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:01:17 Minute. (hh:mm:ss)
Keine Lösung: BP 22.0, BP 22.5. (2023-03-28)
comment
Keywords: Unique Proof Game, Capture-free
Genre: Retro
Computer test: Stelvio 1.11
FEN: 1n5r/1p3p1p/2Rpp1pr/p1pq2R1/PPPPPPPP/1NbB4/bBQnN3/3K3k
Input: Gerd Wilts, 2004-04-01
Last update: Silvio Baier, 2023-04-05 more...
14 - P1068120
Olli Heimo
(5) Die Schwalbe 215 10/2005
P1068120
(16+16)
2w +2s Steine auf 18 Strecken: BP in 22,0
Moldenhauer: Computerprüfung: Stellung cooked, Stelvio in 1 Sekunde.
Keine Lösung: BP 21.0, BP 21.5.
Forderung: 2w + 2s Steine auf 8 Reihen, 8 Linien, 2 großen Diagonalen
wurde erfüllt. Forderung kann man in Stelvio 1.11 nicht als Kriterium vorgeben.
Ich dachte zuerst die Springerzüge 6s + 6w a 3 Felder waren gemeint.
Beispiel Kurznotation mit Fritz17 erstellt:
1.Sa3 Sa6 2.Sc4 b5 3.Sb6 e5 4.c4 La3 5.b4 Sc5 6.d4 a5 7.Lg5 Lc1 8.g3 a4
9.h4 a3 10.h5 Ta4 11.h6 d6 12.Th5 Lf5 13.Lh3 Da8 14.Ld8 Dg2 15.Sf3 Lb1 16.d5 e4 17.Dd4 g5
18.Dg7 Sf6 19.Lc8 Sg4 20.Se5 f6 21.f3 Sf2 22.Sf7 Scd3+
Meiner Meinung nach Forderung erfüllt, es wird eine 2., 3. Lösung nicht ausgeschlossen.
Schachproblem somit C+. (2023-04-30)
comment
Keywords: Non-Unique Proof Game, Construction task, Capture-free
Genre: Retro
FEN: 2BBk2r/2p2NQp/1N1p1p1P/1p1P2pR/rPP1p3/p2n1PP1/P3Pnq1/Rbb1K3
Input: Gerd Wilts, 2005-11-05
Last update: A.Buchanan, 2014-05-30 more...
15 - 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...
16 - P1080429
Rustam Ubaidullajew
R295 Probleemblad 11-12/2005
P1080429
(16+16) C+
BP in 25,5
1. e3 a5 2. Dh5 a4 3. Da5 h5 4. Ke2 Th6 5. Kd3 Te6 6. Kc4 Te4+ 7. Kb5 e6 8. h4 Ke7 9. Th3 Kf6 10. Tg3 Kf5 11. Tg6 Df6 12. Th6 c6+ 13. Kb6+ Kg4 14. Kc7 Df3 15. Kd8 Dd1 16. f3+ Kg3 17. Ke8 Kf2 18. Dd8 b6 19. g3 La6 20. Lh3 Lf1 21. d3 La3 22. Ld2 Se7 23. Lb4 Sg6 24. Lf8 Ke1 25. b4 Lc1 26. Th8
play all play one stop play next play all
Belfort 1994 theme.
paul: 1. e3 a5 2. Qh5 a4 3. Qa5 h5 4. Ke2 Rh6 5. Kd3 Re6 6. Kc4 Re4+ 7. Kb5 e6 8. h4 Ke7 9. Rh3 Kf6 10. Rg3 Kf5 11. Rg6 Qf6 12. Rh6 c6+ 13. Kb6+ Kg4 14. Kc7 Qf3 15. Kd8 Qd1 16. f3+ Kg3 17. Ke8 Kf2 18. Qd8 b6 19. g3 Ba6 20. Bh3 Bf1 21. d3 Ba3 22. Bd2 Ne7 23. Bb4 Ng6 24. Bf8 Ke1 25. b4 Bc1 26. Rh8. Belfort 1994 theme. (2013-08-12)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0, 87 Sekunden.
Keine Lösung: BP 25.0 und BP 24.5. (2023-02-10)
comment
Keywords: Unique Proof Game, Capture-free, Belfort (KDTLkdll)
Genre: Retro
Computer test: Stelvio 1.0
FEN: rn1QKB1R/3p1pp1/1pp1p1n1/7p/pP2r2P/3PPPPB/P1P5/RNbqkbN1
Input: Gerd Wilts, 2009-01-06
Last update: Silvio Baier, 2023-03-02 more...
17 - P1295956
Michel Caillaud
6965 Phénix 241, p. 9623, 07-08/2014
P1295956
(16+16) C+
BP in 16,5
1. Sc3 e5 2. Sd5 Lc5 3. Se7 d5 4. e3 Lh3 5. Dg4 a5 6. De6 f5 7. Se2 Sf6 8. Sc3 Tf8 9. Dg8 Ta6 10. Dh8 La7 11. Sg8 Tf7 12. Sb1 Td7 13. Sh6+ Ke7 14. Sf7 Df8 15. Sg5 Se8 16. Sf3 Tf6 17. Sg1
play all play one stop play next play all
Henrik Juel: Thanks for the solution, Hans; I could not find it
The white knights switch places, very nice proof game (2015-01-26)
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 1 (2018-12-31)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 05:48:08 Stunden. (hh:mm:ss)
Keine Lösung: BP 15.5, BP 16.0. (2023-03-05)
more ...
comment
Keywords: Unique Proof Game, Interchange (SS), Impostor (SS), Capture-free
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1n2nq1Q/bpprk1pp/5r2/p2ppp2/8/4P2b/PPPP1PPP/RNB1KBNR
Input: A.Buchanan, 2015-01-25
Last update: Silvio Baier, 2023-03-20 more...
18 - P1347359
François Labelle
8061 Phénix 279-280, p. 10986, 2017
P1347359
(16+16)
ser-BP in 31
1. Sc3 2. Sd5 3. c3 4. Da4 5. Da6 6. a4 7. a5 8. Ta4 9. Tg4 10. Tg5 11. g4 12. Lg2 13. Le4 14. Lb1 15. d3 16. Lf4 17. e3 18. Se2 19. Tg1 20. Tg3 21. Th3 22. Th6 23. h3 24. Lh2 25. Sdf4 26. Sh5 27. f4 28. Kf2 29. Kg3 30. Kh4 31. Seg3
play all play one stop play next play all
Längste eindeutige Serienzug-BP ohne Schläge
Cf: P1017659
paul: Verified by Jacobi with: stip ser-dia 31 forsyth rsbqkbsr/pppppppp/Q6R/P5RS/5PPK/2PPP1SP/1P5B/1B6 (2021-12-09)
Joost de Heer: This is probably Kriegspiel? If there are no black pieces, the knight path on moves 25/26 can go over f6 as well. (2022-10-25)
A.Buchanan: Good catch, Joost. The black units (because of bK) are necessary. I haven’t heard the term Kriegspiel used to describe this. (2022-10-25)
Henrik Juel: This is a series proof game (where only White moves, and he may not check with an intermediate move)
I see no relation to the fairy condition Kriegspiel (2022-10-25)
comment
Keywords: Unique Proof Game, Seriesmover, Move Length Record (ex-aequo), Capture-free, Homebase (s)
Genre: Retro, Fairies
Computer test: paul: Verified by Jacobi with: stip ser-dia 31 forsyth rsbqkbsr/pppppppp/Q6R/P5RS/5PPK/2PPP1SP/1P5B/1B6
FEN: rnbqkbnr/pppppppp/Q6R/P5RN/5PPK/2PPP1NP/1P5B/1B6
Input: A.Buchanan, 2018-02-28
Last update: A.Buchanan, 2023-06-29 more...
19 - P1349332
Yoav Ben-Zvi
P0360 StrateGems SG63 07/2013
after Kay Soltsien & Hans Heinrich Schmitz,
Die Schwalbe 1960
P1349332
(16+16) C+
PG in 26.0
1. c4 c5 2. Db3 Db6 3. Dh3 Dh6 4. b3 b6 5. La3 La6 6. Lb4 Lb5 7. Sa3 Sa6 8. 0-0-0 0-0-0 9. Kb2 Kb8 10. Tc1 Tc8 11. Tc3 Tc6 12. Tg3 Tg6 13. Tg4 e6 14. g3 Le7 15. Lg2 Lg5 16. Le4 Se7 17. Sf3 Tc8 18. Tc1 Tc6 19. Tc3 Td6 20. Te3 Td3 21. Dg2 Tc3 22. h3 Tc1 23. Tc3 Ta1 24. Lb1 Kc8 25. Sc2 Sb8 26. Ka3 a6
play all play one stop play next play all
Zur Aufgabe von K. Soltsien & H. H. Schmitz siehe P1013024
Henrik Juel: Nice capture-free proof game with several back-tracking moves and partially symmetrical play
Yoav Ben-Zvi: The primary thematic content lies in Turton doubling: 20.Rc3-e3 (WR crosses d3 for [BRh8]) with Switchback 22.Rc3-e3 and Bristol clearance: 8...0-0-0, 9...Kc8-b8 (BK crosses c8 for [BRh8]) with Switchback 24...Kb8-c8.
The main motivation for composing this problem is as a challenge for solving software in a capture-free game (essentially a piece-shuffle). (2018-04-24)
Henrik Juel: It was a challenge for my patience, at least
Natch 3.1 did not find the solution in an hour
Stopped at pos. 1 (2018-12-31)
ras@bsiag.com: Challenge accepted! Stelvio 0.94 can solve this in about 3h. It is C+. Admittedly, I threw a lot of hardware at it (but without parallelizing). I'm sure the solving time will be reduced considerably in the future. (2022-12-12)
more ...
comment
Keywords: Turton, Bristol, Switchback (Tks), Unique Proof Game, Capture-free
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1nk5/3pnppp/pp2p1rq/1bp3b1/1BP3R1/KPR2NPP/P1NPPPQ1/rB6
Input: Yoav Ben-Zvi, 2018-04-21
Last update: Silvio Baier, 2023-03-02 more...
20 - P1383377
Michel Caillaud
18045 Die Schwalbe 300 12/2019
1. Preis
P1383377
(16+16) C+
Beweispartie in 23,5 Zügen
1. g3 h5 2. Lh3 Th6 3. Kf1 Tc6 4. Kg2 Sf6 5. Kf3 Tc3+ 6. Kf4 e5+ 7. Kg5 De7 8. Df1 Db4 9. Dg2 d6 10. De4 Lg4 11. Dh7 g6 12. Dg7 Lf3 13. Kh6 Sg4+ 14. Kh7 Sc6 15. Df6 Lh6 16. De6+ Kf8 17. Db3 Te8 18. Da3 Te6 19. b3 Tf6 20. Db2 Tf4 21. Sa3 Tfc4 22. Db1 Sd4 23. Lb2 c6 24. Dd1
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.5 in 14:30:42 Stunden.(hh:mm:ss)
Keine Lösung: BP 23.0.
Notation:1.g3 h5 2.Lh3 Th6 3.Kf1 Tc6 4.Kg2 Sf6 5.Kf3 Tc3+ 6.Kf4 e5+
7.Kg5 De7 8.Df1 Db4 9.Dg2 d6 10.De4 Lg4 11.Dh7 g6 12.Dg7 Lf3 13.Kh6 Sg4+
14.Kh7 Sc6 15.Df6 Lh6 16.De6+ Kf8 17.Db3 Te8 18.Da3 Te6 19.b3 Tf6
20.Db2 Tf4 21.Sa3 Tfc4 22.Db1 Sd4 23.Lb2 c6 24.Dd1.
Alle Figuren auf dem Brett, Keine Unterverwandlung, weiße Königswanderung,
Unique Proof Game. (2023-08-24)
Joost de Heer: The key feature here is of course not the king walk, but the long queen roundtrip. (2023-08-25)
comment
Keywords: Unique Proof Game, Capture-free
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.5 in 14:30:42 Stunden.(hh:mm:ss) Keine Lösung: BP 23.0.
FEN: 5k2/pp3p1K/2pp2pb/4p2p/1qrn2n1/NPr2bPB/PBPPPP1P/R2Q2NR
Input: Gerd Wilts, 2020-12-25
Last update: Silvio Baier, 2023-11-14 more...
21 - P1386520
Unto Heinonen
P0493v StrateGems 89, p. 36, 01/2020
2. ehrende Erwähnung
P1386520
(16+16) cooked
BP in 42.5
1. h4 a5 2. Th3 Ta6 3. Tf3 Tg6 4. Sh3 Tg3 5. Sf4 Th3 6. g3 Th2 7. Lh3 Sh6 8. Le6 Sf5 9. Lc4 d5 10. Kf1 Th1+ 11. Kg2 Tg1+ 12. Kh3 Kd7 13. Kg4 h5+ 14. Kg5 Th6 15. a4 Tb6 16. Taa3 Kc6 17. Tac3 Tb3 18. Sg6 Ta3 19. b3 Ta2 20. La3 Dd6 21. Lc5 Sd7 22. La7 Sb6 23. Sh8 Kc5 24. La6+ Kb4 25. Tc5 g6 26. Sc3 Lg7 27. Se4 Lc3 28. Da1 Sd4 29. Kh6 Ld7 30. Kg7 Lb5 31. Kf8 Ld3 32. Ke8 Dc6+ 33. Kd8 Sc4 34. Kc8 Ka3 35. Kb8 Lb4 36. Ka8 De8+ 37. Lb8 Sb6+ 38. Ka7 Sa8 39. c4 Sc2 40. Df6 Sa1 41. Db6 Kb2 42. Tf6 Kb1 43. Sc3+
play all play one stop play next play all
Cook: 1. a4 a5 2. h4 h5 3. Ta3 Sh6 4. Tc3 Sf5 5. Sh3 Sd4 6. Sf4 Th6 7. Thh3 Tg6 8. Thf3 Tg3 9. Sg6 Sb3 10. Sh8 Th3 11. g3 g6 12. Lg2 Lg7 13. Kf1 Ld4 14. Tf6 d6 15. Ld5 Ta6 16. Kg2 Tb6 17. Kf3 Lf5 18. Kf4 Ld3 19. Kg5 Kd7 20. Kh6 Sa1 21. Kg7 Tb3 22. Lc4 Ta3 23. b3 Ta2 24. La3 Kc6 25. Lc5 Sd7 26. La7 Sb6 27. Dh1+ Kc5 28. La6+ Kb4 29. Tc5 Sc4 30. Sc3 Dd7 31. Kf8 Db5 32. Dc6 d5 33. Se4 Ka3 34. Ke8 Kb2 35. Kd8 Kb1 36. Kc8 Lc3 37. Kb8 Lb4 38. Ka8 Th1 39. Lb8 Sb6+ 40. Ka7 Sa8 41. c4 Tg1 42. Db6 De8 43. Sc3+
Korrektur zu P0002554
James Malcom: Correction of P0002554 (2021-02-15)
paul: 2nd Honorable Mention (SG98, 2022) (2022-08-20)
A.Buchanan: Cooked by Boris Tummes (2022-12-27)
Teppo Mänttä: A substitute version: white Db6 to g7, Tf6 to b6, Sc3 to e4; black Kb1 to b2; BP in 41.5 moves. Unto Heinonen, Tehtäväniekka No. 5, December 2022. (2022-12-29)
more ...
comment
Keywords: Unique Proof Game, Capture-free, Move Length Record
Genre: Retro
FEN: nB2q2N/Kpp1pp2/BQ3Rp1/p1Rp3p/PbP4P/1PNb2P1/r2PPP2/nk4r1
Input: James Malcom, 2021-02-15
Last update: A.Buchanan, 2022-12-27 more...
22 - P1388821
Kay Soltsien
Hans Theo Kuner

Die Schwalbe 1961
P1388821
(16+16) C+
BP in 30,5
1. c2-c4 c7-c5 2. Dd1-b3 Dd8-b6 3. Db3-h3 Db6-h6 4. b2-b3 b7-b6 5. Lc1-a3 Lc8-a6 6. La3-b4 La6-b5 7. Sb1-a3 Sb8-a6 8. 0-0-0 0-0-0 9. Kc1-b1 Kc8-b8 10. Td1-c1 Td8-c8 11. Tc1-c3 Tc8-c6 12. Tc3-g3 Tc6-g6 13. Tg3-g4 Tg6-g5 14. g2-g3 g7-g6 15. Lf1-g2 Lf8-g7 16. Lg2-e4 Lg7-e5 17. Sg1-f3 Sg8-f6 18. Th1-c1 Th8-c8 19. Tc1-c3 Tc8-c6 20. Kb1-a1 Kb8-a8 21. Le4-b1 Le5-b8 22. Tc3-d3 Tc6-e6 23. Td3-d6 Te6-e3 24. d2-d3 Sf6-e4 25. Sf3-d2 f7-f6 26. f2-f3 Se4-f2 27. Td6-c6 Sf2-h1 28. Tc6-c8 Sa6-c7 29. Tc8-f8 Sc7-e8 30. Tf8-f7 Dh6-f8 31. Dh3-h6
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:04:54 Minuten.(hh:mm:ss)
Keine Lösung: BP 29.5, BP 30.0. Notation:
1. c2-c4 c7-c5 2.Dd1-b3 Dd8-b6 3.Db3-h3 Db6-h6 4. b2-b3 b7-b6
5.Lc1-a3 Lc8-a6 6.La3-b4 La6-b5 7.Sb1-a3 Sb8-a6 8.O-O-O O-O-O
9.Kc1-b1 Kc8-b8 10.Td1-c1 Td8-c8 11.Tc1-c3 Tc8-c6 12.Tc3-g3 Tc6-g6
13.Tg3-g4 Tg6-g5 14. g2-g3 g7-g6 15.Lf1-g2 Lf8-g7 16.Lg2-e4 Lg7-e5
17.Sg1-f3 Sg8-f6 18.Th1-c1 Th8-c8 19.Tc1-c3 Tc8-c6 20.Kb1-a1 Kb8-a8
21.Le4-b1 Le5-b8 22.Tc3-d3 Tc6-e6 23.Td3-d6 Te6-e3 24. d2-d3 Sf6-e4
25.Sf3-d2 f7-f6 26. f2-f3 Se4-f2 27.Td6-c6 Sf2-h1 28.Tc6-c8 Sa6-c7
29.Tc8-f8 Sc7-e8 30.Tf8-f7 Dh6-f8 31.Dh3-h6 (2023-04-19)
comment
Keywords: Unique Proof Game, Capture-free
Genre: Retro
Computer test: Stelvio 1.11
FEN: kb2nq2/p2ppR1p/1p3ppQ/1bp3r1/1BP3R1/NP1PrPP1/P2NP2P/KB5n
Reprints: VI Rex Multiplex 20, p. 674, 10/1986
Input: A.Buchanan, 2021-04-21
Last update: Silvio Baier, 2023-08-15 more...
23 - P1407171
Unto Heinonen
H10 Tehtäväniekka , p. 189, 12/2022
P1407171
(16+16)
PG in 41.5
1. h4 a5 2. Th3 Ta6 3. Tf3 Tg6 4. Sh3 Tg3 5. Sf4 Th3 6. g3 Th2 7. Lh3 Sh6 8. Le6 Sf5 9. Lc4 d5 10. Kf1 Th1+ 11. Kg2 Tg1+ 12. Kh3 Kd7 13. Kg4 h5+ 14. Kg5 Th6 15. a4 Tb6 16. Taa3 Kc6 17. Tac3 Tb3 18. Sg6 Ta3 19. b3 Ta2 20. La3 Dd6 21. Lc5 Sd7 22. La7 Sb6 23. Sh8 Kc5 24. La6+ Kb4 25. Tc5 g6 26. Sc3 Lg7 27. Se4 Lc3 28. Da1 Sd4 29. Kh6 Ld7 30. Kg7 Lb5 31. Kf8 Ld3 32. Ke8 Dc6+ 33. Kd8 Sc4 34. Kc8 Ka3 35. Kb8 Lb4 36. Ka8 De8+ 37. Lb8 Sb6+ 38. Ka7 Sa8 39. c4 Sc2 40. Dg7 Sa1 41. Tf6 Kb2 42. Tb6+
play all play one stop play next play all
Henrik Juel: Thanks to Michel for providing the solution and to James for animating it (2023-04-20)
more ...
comment
Keywords: Unique Proof Game, Move Length Record, Capture-free
Genre: Retro
FEN: nB2q2N/Kpp1ppQ1/BR4p1/p1Rp3p/PbP1N2P/1P1b2P1/rk1PPP2/n5r1
Input: A.Buchanan, 2023-01-08
Last update: James Malcom, 2023-04-20 more...
24 - P1407174
Noam D. Elkies
Retros mailing list 01/01/2023
P1407174
(16+16) C+
PG in 10.0
How many solutions?
1. e4 e5 2. Ke2 Df6 3. Kd3 Db6 4. h4 d6 5. Th3 Sd7 6. Kc4 Le7 7. Te3 Sf8 8. Kd5 Lf6 9. Lc4 Ld7 10. Se2 Se7# for example
play all play one stop play next play all
2023 solutions
Henrik Juel: Surely, there are 2023 solutions
But how do you compute it? (2023-01-08)
Moldenhauer: Computerprüfung: C+ Jacobi v0.7.6 beta1 Lösungen: 2023 sind bestätigt!
Wie kommt man auf sowas? Interessiert auch mich. (2023-01-09)
A.Buchanan: White & Black play are almost independent. Because Black's first move is e5, wK route is determined. It's nearly C(10,3), but wRd3 would block e2-e4, so subtract one solution to make 120-1 = 119 = 7x17. Black's play is nearly as simple: C(9,2) fails due to collision on f8 3 times, and due to collision on f6 1 time, so 21-3-1 = 17. Note the final move is checkmate, a signature flourish that Noam likes to apply (2023-01-09)
comment
Keywords: Path enumeration (year), Non-Unique Proof Game, Capture-free
Genre: Retro, Mathematics
Computer test: C+ Jacobi v0.7.6 beta1 Lösungen: 2023 sind bestätigt!
FEN: r3kn1r/pppbnppp/1q1p1b2/3Kp3/2B1P2P/4R3/PPPPNPP1/RNBQ4
Input: A.Buchanan, 2023-01-08
Last update: A.Buchanan, 2024-01-02 more...
Show statistic for complete result. Show search result faster by using ids.

https://pdb.dieschwalbe.de/search.jsp?expression=COMMENTDATE%3E%3D20220810+AND+G%3D%27Retro%27+AND+NOT+K%3D%27Schnoebelen-Thema%27+AND+K%3D%27Schlagfrei%27

The problems of this query have been registered by the following contributors:

Gerd Wilts (17)
A.Buchanan (5)
Yoav Ben-Zvi (1)
James Malcom (1)