Die Schwalbe

18 problem(s) found in 3685 milliseconds (displaying 18 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT S='De Maasbode' AND K='Ornament'] [download as LaTeX]

1 - P0005367
Ted Brandhorst
3500 British Chess Magazine 12/1973
P0005367
(0+0)
BP in which both sides get their pieces all on squares of the same colour?
(AL: 12,5)
1. a3 a5 2. c3 b6 3. d4 d6 4. e3 e5 5. f4 f6 6. g3 g5 7. h4 h6 8. Sd2 Ta7 9. Kf2 Lg7 10. De1 Kf8 11. Lh3 Lxh3 12. Txh3 Se7 13. Th2
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Hauke Reddmann: Beim Vorfuehren (im Club vor voellig problemunerfahrenen
Patznasen) kam einer auf
folgende Idee:

1.c3 e5 2.a3 Bxa3 3.Nxa3 a5 4.e3 b6 5.f4 d6 6.g3
Ne7 7.h4 f6 8.Bh3 Bxh3 9.Rxh3 Ra7 10.Rh2 Kf8 11.Kf2 h6 12.Qe1

2 Halbzüge gespart! (2002-11-19)
Ryan McCracken: It's possible to do this faster with a good capturing scheme:
1.e3 d6 2.Ba6 Bh3 3.Bxb7 Bxg2 4.Bxa8 Bxh1 5.Be4 Bf3 6.Bxh7 Bxd1 7.Bxg8 Bxc2 8.Nc3 Bb3 9.Bxf7+ Kxf7 10.axb3 Kf6 11.b4 reaching a monochrome position in a mere 10.5 moves. (2004-10-01)
A.Buchanan: I don't think this "cooked". It's not even unsound: just the author's effort to solve a synthetic challenge, and twice the solution has been superseded, that's all. (2020-11-03)
comment
Keywords: Synthetic problem, Superseded by (P1381496), Non-Unique Proof Game, Ornament
Genre: Retro
FEN: 8/8/8/8/8/8/8/8
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2020-11-04 more...
2 - P0008564
Unto Heinonen
Springaren 1995
P0008564
(8+16) C+
BP in 25,0
1. b4 Sh6 2. b5 Sf5 3. b6 axb6 4. g4 Ta4 5. g5 Tb4 6. g6 hxg6 7. a4 Th5 8. a5 Tg5 9. a6 bxa6 10. h4 Lb7 11. h5 Dc8 12. h6 gxh6 13. f4 Sg7 14. f5 Kd8 15. f6 exf6 16. c4 Ld6 17. c5 Lf4 18. c6 dxc6 19. d4 Sd7 20. d5 Sf8 21. d6 cxd6 22. e3 Kc7 23. e4 Kb8 24. e5 Ka8 25. e6 fxe6
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Alle schwarzen Bauern schlagen überkreuz.
s.a. Version P1214063
Joost de Heer: Compare with P1000230. (2022-08-05)
Henrik Juel: 6 hours with Euclide 1.01 produced nothing (2022-08-05)
comment
Keywords: Unique Proof Game, Homebase (W), Ornament, Cross-capture
Genre: Retro
Computer test: C+ by Stelvio beta from Reto Aschwanden
FEN: k1q2n2/1b4n1/pppppppp/6r1/1r3b2/8/8/RNBQKBNR
Reprints: Die Schwalbe 181 02/2000
H29 FIDE Album 1995-1997 2004
18a 64 Proof Games 2012
Input: Gerd Wilts, 1997-01-09
Last update: A.Buchanan, 2022-11-28 more...
3 - P0008940
Unto Heinonen
R019 Probleemblad 03/1998
P0008940
(8+11) C+
BP in 20,5
1. Sf3 b5 2. Sd4 Lb7 3. Sxb5 Lxg2 4. Sxa7 c6 5. Sc8 Txa2 6. Sc3 Txb2 7. Ta8 Da5 8. Sa2 Dxd2+ 9. Kxd2 Sa6 10. Kc3 Sc5 11. Dd4 Txc2+ 12. Kb4 Txe2 13. La3 Txf2 14. La6 h5 15. Ta1 Lf1 16. Dxg7 Txh2 17. Dxg8 Th4+ 18. Dg4 Lh6 19. Ka5 Lc1 20. Da4 Th6 21. Sa7#
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paul: Checked the first 16.5 moves with Euclide. (2014-12-04)
paul: Thr first 17.5 moves checked by Euclide (~29 hours) (2014-12-06)
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comment
Keywords: Unique Proof Game, Ornament
Genre: Retro
Computer test: Computerprüfung: C+ Natch 3.3 in 302 Std. 48 Min. Lösung 1 (Stellung 3391) Notation OK.
FEN: R3k3/N2ppp2/B1p4r/K1n4p/Q6r/B7/N7/R1b2b2
Input: Gerd Wilts, 1998-06-26
Last update: A.Buchanan, 2022-11-25 more...
4 - P1000634
Michel Caillaud
R081 Probleemblad 03-04/2000
P1000634
(12+13) C+
BP in 40,5
1. d4 h5 2. d5 h4 3. d6 h3 4. dxc7 hxg2 5. h4 a5 6. h5 a4 7. h6 a3 8. h7 axb2 9. hxg8=T Th4 10. a4 Tg4 11. Thh8 Ta5 12. Sh3 Tah5 13. a5 d5 14. a6 d4 15. a7 Dd5 16. a8=T Sd7 17. Tb8 g1=L 18. Taa8 Lh2 19. Sa3 b1=T 20. e4 Tb6 21. e5 Tbh6 22. e6 Sb6 23. exf7+ Kd7 24. c4 e5 25. c5 Ld6 26. f8=T e4 27. Te8 Ldg3 28. c6+ Kd6 29. Lb5 Le6 30. c8=T e3 31. c7 e2 32. Ld7 exd1=L 33. Kf1 d3 34. f4 d2+ 35. f5 dxc1=D 36. f6 De3 37. f7 La4 38. f8=T Lf7 39. Tcd8 D3e6 40. c8=T Lb5+ 41. Sc4+
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Henrik Juel: Natch 3.1 found nothing in an hour (2018-12-14)
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comment
Keywords: Unique Proof Game, Non-standard material (TTTTTTtlld), Ornament
Genre: Retro
Computer test: C+ in about 56h using Stelvio 1.11 and lots of RAM (Reto)
FEN: RRRRRRRR/1p1B1bp1/1n1kq2r/1b1q3r/2N3r1/6bN/7b/5K2
Reprints: H37 FIDE Album Annexe 1998-2000 2009
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2023-03-13 more...
5 - P1000973
Unto Heinonen
10919 Die Schwalbe 185 10/2000
3. ehrende Erwähnung
P1000973
(16+13) C+
BP in 21,5
1. d3 Sh6 2. Lxh6 e6 3. e3 La3 4. Dg4 0-0 5. f3 g6 6. Lxf8 f6 7. Lc5 d6 8. Kf2 Ld7 9. Kg3 La4 10. Kh4 c6 11. g3 Da5 12. Lh3 De1 13. c3 Ld1 14. b3 Lc1 15. Sa3 Sa6 16. Sc2 Sb4 17. a3 Sa2 18. Db4 a6 19. Lg4 Ta7 20. Lxa7 h6 21. Ld4 b6 22. h3
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Alle Bauern (weiß und schwarz) machen einen einfachen Schritt.
Teppo Mänttä: reprint: H49 FIDE-Album 1998-2000 (Aachen 2007). (2021-05-08)
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comment
Keywords: Unique Proof Game, Ornament
Genre: Retro
Computer test: Natch 3.1 (1 min.)
FEN: 6k1/8/pppppppp/8/1Q1B2BK/PPPPPPPP/n1N5/R1bbq1NR
Input: Gerd Wilts, 2000-10-29
Last update: Alfred Pfeiffer, 2018-12-20 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
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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 - P1012128
George Peter Jelliss
The Problemist 1982
P1012128
(7+7)
BP in 31.5
1. g4 b5 2. a4 h5 3. axb5 hxg4 4. b3 g6 5. La3 Lh6 6. Ld6 Le3 7. fxe3 cxd6 8. Ta4 Th5 9. Tf4 Tc5 10. b4 g5 11. bxc5 gxf4 12. h4 a5 13. h5 a4 14. h6 a3 15. h7 a2 16. h8=D a1=L 17. De5 Ld4 18. exd4 dxe5 19. Th3 Ta3 20. Te3 Td3 21. Sf3 Sc6 22. bxc6 gxf3 23. Lh3 fxe3 24. Le6 dxe6 25. exd3 Dd6 26. Sc3 Sf6 27. Se4 Sd5 28. c4 f5 29. De2 Ld7 30. cxd5 fxe4 31. cxd6 fxe2 32. cxd7+
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No. 1462 HN
Moldenhauer: Computerprüfung: C+ NUPG Stelvio 1.11 00:05:52 Minuten. (hh:mm:ss)
Keine Lösung: BP 30.5, BP 31.0.
Beispiel: 1.Sc3 Sf6 2.a4 Sd5 3.b4 b5 4.Lb2 c5 5.axb5 h5 6.g4 hxg4 7.Ta6 Th3 8.Tf6 Td3 9.exd3 Sc6 10.bxc6 a5 11.h4 a4 12.h5 Ta5 13.h6 a3 14.h7 gxf6 15.h8D f5 16.Dd4 Lh6 17.Th3 Le3 18.fxe3 a2 19.e4 a1D 20.Te3 cxd4 21.Lh3 Tc5 22.bxc5 dxe3 23.exd5 d6 24.Se4 fxe4 25.Le5 Dd4 26.Df3 dxe5 27.Se2 Dd6 28.cxd6 Ld7 29.c3 gxf3 30.Le6 fxe6 31.cxd4 fxe2 32.cxd7+ (2023-04-24)
comment
Keywords: Non-Unique Proof Game, Ornament, Kindergarten Problem
Genre: Retro
FEN: 4k3/3Pp3/3Pp3/3Pp3/3Pp3/3Pp3/3Pp3/4K3
Input: Henri Nouguier, 2004-01-11
Last update: James Malcom, 2021-02-25 more...
8 - P1017488
Rustam Ubaidullajew
R158 Problemesis 06/2004
P1017488
(16+15) C+
BP in 25,5
1. e4 a5 2. Se2 a4 3. Sec3 a3 4. Sxa3 Ta6 5. Sab5 Th6 6. a4 Th4 7. a5 h5 8. a6 Th6 9. a7 Tg6 10. a8=S Tgg4 11. Sb6 g5 12. Ta8 Lg7 13. Sa7 Le5 14. La6 f6 15. Sc4 b5 16. Sa2 Lb7 17. c3 Ld5 18. Da4 Le6 19. Kd1 Lf5 20. Kc2 e6 21. Kb3 Se7 22. Kb4 Sc8 23. Ka5 De7 24. b4 Dd6 25. La3 Ke7 26. Ta1
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Henrik Juel: Natch 3.1 did very little in an hour (2018-12-19)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0, 33:47 Minuten.
Keine Lösung: BP 24.5, BP 25.0. (2023-02-13)
comment
Keywords: Unique Proof Game, Ornament
Genre: Retro
Computer test: Stelvio 1.19, 20sec
FEN: Rnn5/N1ppk3/B2qpp2/Kp2bbpp/QPN1P1rr/B1P5/N2P1PPP/R7
Input: Gerd Wilts, 2004-06-05
Last update: Reto, 2023-05-08 more...
9 - P1067931
Alexandre Leroux
R201 Problemesis 45 06/2005
P1067931
(11+14) C+
BP in 23,0
1. c4 b5 2. Da4 Lb7 3. Dxa7 Sa6 4. a4 Tb8 5. a5 La8 6. Ta4 bxa4 7. b4 Tb5 8. La3 Tg5 9. b5 e5 10. Lxf8 f5 11. Lb4 c5 12. e4 cxb4 13. c5 Kf7 14. Lc4+ Kg6 15. Se2 d5 16. 0-0 dxc4 17. Te1 Dd3 18. Kf1 Dc2 19. d4 Sf6 20. d5 Td8 21. Sd4 exd4 22. e5 Se8 23. Te4 fxe4
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Henrik Juel: Natch 3.1 did nothing in half an hour
Stopped while searching for position 1 (2018-12-21)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:01:55 Minute. (hh:mm:ss)
Keine Lösung: BP 22.0, BP 22.5. (2023-03-28)
comment
Keywords: Unique Proof Game, Ornament
Genre: Retro
Computer test: Stelvio 1.11
FEN: b2rn3/Q5pp/n5k1/PPPPP1r1/ppppp3/8/2q2PPP/1N3K2
Input: Gerd Wilts, 2005-06-05
Last update: Silvio Baier, 2023-04-05 more...
10 - P1067932
Alexandre Leroux
R202 Problemesis 45 06/2005
P1067932
(13+11) C+
BP in 21,0
1. e4 c5 2. Lb5 Da5 3. c4 Kd8 4. Da4 d5 5. Le8 b5 6. b3 b4 7. Dc6 La6 8. a4 Lb5 9. axb5 Da4 10. Lb2 a5 11. Lxg7 Lxg7 12. Ta3 La1 13. bxa4 Sf6 14. Te3 Tg8 15. d3 Txg2 16. Sd2 Txh2 17. Sf1 Th5 18. Th4 d4 19. Sh3 Td5 20. exd5 Se4 21. dxe4 e5
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Henrik Juel: Natch 3.1 did not find the solution in an hour
Stopped at position 246 (2018-12-21)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:53:31 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.0, BP 20.5. (2023-03-16)
comment
Keywords: Unique Proof Game, Ornament
Genre: Retro
Computer test: Stelvio 1.11
FEN: rn1kB3/5p1p/2Q5/pPpPp3/PpPpP2R/4R2N/5P2/b3KN2
Input: Gerd Wilts, 2005-06-05
Last update: Silvio Baier, 2023-03-20 more...
11 - P1083495
Henrik Juel
Kevin James Begley

The Problemist 2006
P1083495
(4+9) cooked
ser-=20
Platzwechselcirce
1. Se5 2. Sf7 3. Sh8 4. Sxg6[+sBh8] 5. Sf8 6. Sxe6[+sBf8] 7. Sd8 8. Sxc6[+sBd8] 9. Sb8 10. Sxa6[+sBb8] 11. Sc7 12. Sa8 13. Sxb6[+sBa8] 14. Sc8 15. Sxd6[+sBc8] 16. Se8 17. Sxf6[+sBe8] 18. Sg8 19. Sxh6[+sBg8] 20. Sg4 =
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Cook: 1.Se3 2.g4 3.g5 4.gxf6[+bPg5] 5.f7 6.f8=B!! 7.Kf2 8.Sg4 9.S:h6[+bPg4] 10.B:d6[+bPf8] 11.Bg3 12.Sf7 13.Sd8 14.S:e6[+bPd8] 14.Sc5 15.S:a6[+bPc5] 16.Sc7 17.Sa8 18.S:b6[+bPa8] 19.Sc4 =
Pawns reborn on their 1st rank have no legal move in this condition (unlike Circe-Parrain).
Henrik Juel: I am not a co-author of this problem, which appeared in The Problemist under Kevin's name only
In the solution section there was no mention of a cook (2021-05-17)
Henrik Juel: Kevin has pointed out a memory lapse on my part
He found a cooked problem by me from 1993 with the same idea and suggested that his 2006 problem should include me as co-author, which I accepted (2022-03-31)
Anton Baumann: "cooked" ist zu entfernen! Was soll denn hier cooked sein? (2022-04-06)
Henrik Juel: I believe that Kevin has found a cook (2022-04-06)
Kevin Begley: Norbert Geissler found this impressive cook (which Popeye does not find).
We have long known of a simple correction (I believe it's fully sound starting with wSf7, as ser-=18, but the circuit would be lost). I had hoped to reveal details of the cook (and the solver) in the publication of a correction, but time slipped away, then I stopped composing for some years. Truth be told, prospects to fully restore the intent were never likely. (2022-04-10)
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comment
Keywords: Circe (Platzwechsel-), Pure Round Trip, Ornament, Seriesmover
Genre: Fairies
FEN: 8/8/pppppppp/8/6N1/5KPk/8/6P1
Input: Kevin Begley, 2009-03-04
Last update: Kevin Begley, 2022-04-10 more...
12 - P1108595
Nicolas Dupont
FIDE Olympic Tourney 39 Khanty-Mansiysk 2010
3. Preis Olympia-Turnier-Khanty-Mansisysk
P1108595
(14+13) C+
BP in 41.5
1. e4 d5 2. e5 d4 3. e6 d3 4. exf7+ Kd7 5. a4 e5 6. a5 e4 7. a6 e3 8. axb7 e2 9. Ta6 exd1=L 10. Tb6 a5 11. h4 a4 12. h5 a3 13. h6 a2 14. hxg7 La3 15. f8=L a1=S 16. Lb4 c5 17. Thh6 Kc7 18. Thd6 h5 19. g4 h4 20. g5 Th5 21. g6 Sh6 22. g8=L Sb3 23. g7 Sxd2 24. Lb3 Se4 25. g8=S Sf6 26. Kd2 h3 27. Kc3 h2 28. Kc4 h1=L 29. Le1 d2 30. c3 Lc2 31. Se7 Lh7 32. Sf5 d1=T 33. Sg3 Lcf5 34. f4 Sbd7 35. b8=S Dc8 36. Sc6 Db7 37. Sb4 Lc6 38. Sh1 Td5 39. Ld1 Kb8 40. b3 Lb2 41. Sc2 Ta3 42. Sa1
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James Malcom: It is very suprising that such a long proof game can be C+. Is this the longest proven, orthodox PG? (2021-03-10)
A.Buchanan: “Consecutive promotions” indicates that the promotions have a thematic “nearness” in the sequence of game moves (or perhaps that the order is significant - but I think a new keyword like “ordered promotions” would be better for that?) These are actually uncommon objectives, and are certainly not goals in this composition as far as I can see. Just “promotion” with a shopping list of the promotions which took place avoids extra keying, redundancy, errors and inflexibility. I wish that everyone can develop a joy in accurate naming, and a unwillingness to settle for slipshod language. Thanks (2021-03-11)
Henrik Juel: Yes, James, this may well be the longest C+ PG
I tried to test it with Euclide 1.01
Strategy 1 turned out to be successful, and the intended solution was found in an hour
Strategy 2 turned out not to provide a solution, and I terminated the program after some 12 hours, while it was searching for strategy 3 (which may not exist) (2021-03-11)
ras@bsiag.com: I just tried this with my own solving program (still wip though, not to be trusted yet). Finds unique solution in 6sec. Surprising. (2022-08-02)
comment
Keywords: Unique Proof Game, Non-standard material (LLSStsll), Ornament, Promotion (lLsLSltS)
Genre: Retro
Computer test: Euclide 0.98
FEN: 1k6/1q1n3b/1RbR1n1n/2pr1b1r/2K2P2/rPP5/1b6/NNBBBBNN
Input: Gerd Wilts, 2010-06-25
Last update: James Malcom, 2022-02-14 more...
13 - P1381496
Ryan McCracken
PDB Website 01/10/2004
P1381496
(0+0)
BP in which both sides get their pieces all on squares of the same colour?
1. e3 d6 2. La6 Lh3 3. Lxb7 Lxg2 4. Lxa8 Lxh1 5. Le4 Lf3 6. Lxh7 Lxd1 7. Lxg8 Lxc2 8. Sc3 Lb3 9. Lxf7+ Kxf7 10. axb3 Kf6 11. b4
play all play one stop play next play all
A.Buchanan: Improves on P0005367 (2020-11-03)
comment
Keywords: Synthetic problem, Non-Unique Proof Game, Ornament, Superseded by (P1381525)
Genre: Retro
FEN: 8/8/8/8/8/8/8/8
Input: A.Buchanan, 2020-11-03
Last update: A.Buchanan, 2020-11-04 more...
14 - P1381525
François Labelle
Phénix 2014
P1381525
(10+11) C+
BP in 10,0
1. e3 d6 2. La6 Lh3 3. Lxb7 Lxg2 4. Lxa8 Lxh1 5. Le4 Lxe4 6. c3 Lxb1 7. Db3 Lxa2 8. Dxa2 f6 9. Dxg8 h6 10. Dxf8 Kxf8
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AB: I too made this one yesterday but alas on checking in WinChloe found that Francois’ software had got there first! This shows the utility of WinChloe and the power of Francois’ approach. And at least I can be grateful I didn’t try to publish!

This proof game is too long to be found by François’ general mining program, but he can adapt his program specifically to find ornamental problems such as this where the final positions are highly constrained and he can count whether any move is taking him nearer or further away from the right kind of position. The definitively unproductive lines can easily be pruned. Homebases and symmetric positions are also amenable to this kind of attack

See P1381496.
Henrik Juel: Solution
1.Be2-e3 Bd7-d6 2.Lf1-a6 Lc8-h3 3.La6xb7 Lh3xg2
4.Lb7xa8 Lg2xh1 5.La8-e4 Lh1xe4 6.Bc2-c3 Le4xb1
7.Dd1-b3 Lb1xa2 8.Db3xa2 Bf7-f6 9.Da2xg8 Bh7-h6
10.Dg8xf8 Ke8xf8
was found by Natch 3.1, which was stopped before completion
The C+ was probably found by construction, not by testing
The light-colored bishops do most of the work, with the white queen sweeping up at the end (2020-11-04)
A.Buchanan: Thanks Henrik - Natch 3.2 did complete in about 90 minutes. Oh the sadness of anticipation... (2020-11-05)
comment
Keywords: Unique Proof Game, Ornament
Genre: Retro
Computer test: C+ Natch 3.2 in 1hr 32 mins
FEN: 1n1q1k1r/p1p1p1p1/3p1p1p/8/8/2P1P3/1P1P1P1P/R1B1K1N1
Input: A.Buchanan, 2020-11-04
Last update: A.Buchanan, 2020-11-05 more...
15 - P1385370
Kevin James Begley
Paul Raican

774v Quartz 35 2010
P1385370
(16+16)
BP in 22

Platzwechselcirce
1. e4 c5 2. La6 Sxa6[+wLb8] 3. Lxa7[+sBb8] Txa7[+wLa8] 4. Lxb7[+sBa8] Lxb7[+wLc8] 5. Lxd7[+sBc8]+ Dxd7[+wLd8] 6. Lxe7[+sBd8] Kxe7[+wLe8] 7. Lxf7[+sBe8] Kf6 8. Lxg8[+sSf7] Kg6 9. Lxh7[+sBg8]+ Txh7[+wLh8] 10. Lxg7[+sBh8] Lxg7[+wLf8] 11. Kf1 (only now) Lc3 12. Sxc3[+sLb1] Lxa2[+wBb1] 13. Txa2[+sLa1] Lxb2[+wBa1] 14. Lxb2[+sLc1] Lxd2[+wBc1] 15. Dxd2[+sLd1] Lxc2[+wBd1] 16. Dxc2[+sLd2] Le1 17. Lxc5[+sBf8] Lxf2[+wBe1] 18. Kxf2[+sLf1] Lxg2[+wBf1] 19. Kg3 Lh3 20. Sxh3[+sLg1] Lxh2[+wBg1]+ 21. Txh2[+sLh1] Lhxe4[+wBh1] 22. Sxe4[+sLc3] Sxc5[+wLa6]
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Korrektur von P1114941 aus "Quartz" 50, 09/2020, S.843.
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comment
Keywords: Unique Proof Game, Interchange Circe, Ornament
Genre: Retro, Fairies
FEN: pppppppp/rb1q1n1r/B5k1/2n5/4N3/2b3KN/RBQ4R/PPPPPPPP
Input: Alfred Pfeiffer, 2021-01-15
Last update: Kevin Begley, 2023-08-22 more...
16 - P1389099
Silverbyte
Discord Chess Problems & Studies Server 4/4/2021
8. Platz
CP&S Discord Server Composition Tourney 0 {}
P1389099
(9+7) C+
#3
1. Df4+ Sxf4 2. exf4+ Kf6 3. Ld4#
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comment
Keywords: Joke, Non-standard material (Ds), Ornament (mate position)
Genre: 3#
Computer test: Henrik Juel: C+ Popeye 4.61 C+ Popeye 4.61 1.Df4+ Sxf4 2.exf4+ Kf6 3.Ld4# joke: non-standard material ornament: mate position
FEN: 2q2n2/3bn3/2r1n3/4k3/2Q1B1Q1/2P1PK2/3RP3/6B1
Reprints: MatPlus.net Forum 4
Input: A.Buchanan, 2021-04-30
Last update: Alfred Pfeiffer, 2021-07-27 more...
17 - P1389511
Christopher Cedric Lytton
R345c The Problemist , p. 438, 07/2004
to Charles Frankiss
P1389511
(13+13) C+
BP in 17.5
1. Sf3 d5 2. Tg1 d4 3. Sxd4 a5 4. Sb3 Dxd2+ 5. Lxd2 Ta6 6. Dc1 Te6 7. Kd1 Txe2 8. Le1 Te4 9. S1d2 Ta4 10. Lc4 Txa2 11. Sf1 Ta4 12. Ta3 g5 13. Sa1 g4 14. Th3 g3 15. La2 Th4 16. hxg3 a4 17. Thh1 Lh3 18. Lb1
play all play one stop play next play all
Corrects P1013076
Henrik Juel: C+ Euclide 1.01 (6:22 hours)
It looks like a shift to the left by the white officers (and [Ta1] to h1), but the knights go a longer way:
Sg1-f3xd4-b3-a1 and Sb1-d2-f1 (2021-05-13)
A.Buchanan: the bishops go a longer way too :D (2021-05-13)
Henrik Juel: Ha-ha, yes indeed (2021-05-13)
paul: Stelvio 2.0 tested this in 1 minute. (2024-02-27)
more ...
comment
Keywords: Unique Proof Game, Interchange (TSLDKLST), Ornament
Genre: Retro
Computer test: C+ Euclide 1.01 (6:22 hours) C+ Natch 3.3 (3.37 hours) Stelvio 2.0 tested this in 1 minute.
FEN: 1n2kbnr/1pp1pp1p/8/8/p6r/6Pb/1PP2PP1/NBQKBNRR
Input: A.Buchanan, 2021-05-13
Last update: A.Buchanan, 2024-02-27 more...
18 - P1402339
Kevin James Begley
P0527 StrateGems 99 07-09/2022
3. ehrende Erwähnung
P1402339
(16+15) C+
BP in 11

Kontraparraincirce
1. a3 e6 2. Ta2 Lxa3 3. h4[+wBa1] Dxh4 4. Txh4[+wBh1] Lxb2[+sDg5] 5. Lxb2[+wBc1] Dxg2[+sLb5] 6. Lxg2[+wBf1] Lxe2[+sDd5] 7. Sxe2[+wBg1] Sh6[+sLd4] 8. Th2 Lxf2+ 9. Kxf2[+wBe1] Dxd2[+sLf5] 10. Sxd2[+wBb1] Lxc2[+sDg5] 11. Dxc2[+wBd1] Dd8
play all play one stop play next play all
more ...
comment
Keywords: Unique Proof Game, Circe (Kontraparrain), Ornament, Interchange (KB,DB,TBTB,LBLB,SBSB)
Genre: Retro, Fairies
Computer test: Jacobi v0.75 (68 seconds)
FEN: rnbqk2r/pppp1ppp/4p2n/8/8/8/RBQNNKBR/PPPPPPPP
Input: Kevin Begley, 2022-06-29
Last update: Kevin Begley, 2023-08-22 more...
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