Die Schwalbe

15 problem(s) found in 3719 milliseconds (displaying 15 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Kindergarten-Problem']

1 - P0576207
Torsten Linss
1348 Rochade Europa 01/1997
P0576207
(1+1+4)
h#2
Circe coucou
1. Kxe4[+nSe8] nSxg7[+nDg1] 2. nDxg3[+nTd8] nTxd7[+nLh1]#
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t/promotion only
t/2KK4BB,
Steen Christensen: In "Circe coucou", 1.Kxe4[+nSe8] is illegal because of the alternative promotions nDe8+/nTe8+. This problem is avoided using "Circe couscous" instead (2013-03-01)
Henrik Juel: With Circe couscous, C+ Popeye 4.61 (2020-10-09)
comment
Keywords: Circe (Couscous), Kindergarten Problem, Allumwandlung
Genre: Fairies
FEN: 8/3-P2-P1/8/8/3k-P3/6-P1/K7/8
Input: Felber, Volker, 1999-12-30
Last update: Alfred Pfeiffer, 2020-10-09 more...
2 - P1085218
Horacio Amil Meylan
i010 Mirador 02/2004
P1085218
(9+6)
ser-h#32
1. e6 2. exf5 3. f4 4. f3 5. f2 6. f1=D 7. Dxh3 8. Dxh5 9. Df5 10. h5 11. h4 12. h3 13. h2 14. h1=L 15. Lxc6 16. Le4 17. c6 18. cxb5 19. b4 20. b3 21. b2 22. b1=T 23. Tb6 24. Txd6 25. Te6 26. d5 27. d4 28. d3 29. dxc2 30. c1=S 31. Se2 32. Sf4 d4#
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Anton Baumann: C+ Alybadix (2020-11-27)
comment
Keywords: Series mover, Allumwandlung, Excelsior (4-fach), Kindergarten Problem, Pawn mate, Ideal mate, Entblockung, Selfblock, Promotion, under-promotion, konsekutive Umwandlungen 4 (dlts)
Genre: Fairies
FEN: 8/2ppp2p/2PP1p2/1PK1kP1P/8/7P/2PP4/8
Reprints: zu 18098 Die Schwalbe 204, p. 656, 08/2020
Input: hpr, 2009-05-30
Last update: Gunter Jordan, 2020-08-14 more...
3 - P1109832
Evgeny Sorokin
Pavlos N. Moutecidis

20 British Chess Federation 11/1971
127. Turnier 1970/71
3. Preis
P1109832
(9+7)
ser-h#28
1. b1=L 2. Lxa2 3. Ld5 4. a2 5. a1=L 6. Lc3 7. Lxb4 8. Lxd6 9. b4 10. b3 11. b2 12. b1=L 13. Lxg6 14. Lf5 15. g5 16. g4 17. g3 18. g2 19. g1=L 20. Lxh2 21. Lg3 22. Lxh4 23. Lf6 24. h4 25. h3 26. h2 27. h1=L 28. Lhe4 d4#
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Anton Baumann: C+ Alybadix (2020-11-25)
comment
Keywords: Kindergarten Problem, Series mover, Promotions to bishops, konsekutive Umwandlungen 5 (lllll)
Genre: Fairies
FEN: 8/6p1/3Pp1P1/1p2k2p/1P5P/p3P3/Pp1P3P/3K4
Input: Frank Müller, 2010-07-04
Last update: Olaf Jenkner, 2010-12-28 more...
4 - P1110909
George P. Sphicas
4891 feenschach 80 10-11/1986
2. Preis
P1110909
(9+6)
ser-h#34
1. Kd5 2. e5 3. e4 4. e3 5. exf2 6. f1=S 7. Sxg3 8. Se4 9. g3 10. g2 11. g1=T 12. Ta1 13. Txa4 14. Tc4 15. a4 16. a3 17. a2 18. a1=T 19. Txa6 20. Td6 21. a5 22. a4 23. a3 24. a2 25. a1=D 26. Dxf6 27. De6 28. f6 29. fxg5 30. g4 31. g3 32. g2 33. g1=L 34. Ld4 bxc4#
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Informalturnier 1986 Rest, Preisrichter Gerhard E. Schoen, Preisbericht f-94 S. 252
Eine unscheinbare Stellung mit erstklassisch tückischem Lösungsverlauf, der eine SLTTD-Umwandlung mit Idealmatt als Thema zeigt. Vergleicht man dieses Problem mit ähnlichen aus der Glanzzeit dieses Genres, den frühen siebziger Jahren, dann erkennt man erst diese Leichtigleit der ausgefeilten Darstellung, ohne dabei Komplexität und Lösungsschwierigkeit zu vermissen (G.E.Schoen).
Anton Baumann: C+ Alybadix (2020-11-28)
comment
Keywords: Allumwandlung, black, Ideal mate, Kindergarten Problem, Series mover, konsekutive Umwandlungen 5 (sttdl)
Genre: Fairies
FEN: 8/p3pp2/P3kP2/pK4P1/P4Pp1/1P4P1/5P2/8
Reprints: Umwandlungsrekorde (2) 12/1989
feenschach 94 01-05/1990
894 Kings and Pawns 1996
Input: HBae, 2010-07-18
Last update: Olaf Jenkner, 2010-12-28 more...
5 - P1186866
Thierry Le Gleuher
T10 Phénix 173/174, p. 7566, 05-06/2008
nach Gerd Wilts
P1186866
(9+9)
Wer ist am Zug?
R: 1. ... f4xLg3 2. Lh4-g3 f5-f4 3. Lf6-h4 h3-h2 4. Lb2-f6 h4-h3 5. Lc1-b2 h5-h4 6. b2xLa3 Lc5-a3 7. e3-e4 Ld4-c5 8. c5-c6 Lf6-d4 9. c4-c5 Le7-f6 10. c3-c4 Lf8-e7 11. c2-c3 e7xTd6 12. Td4-d6 Kd8-c8 13. d6xTc7
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Henrik Juel: White has the move
-1... f4xLg3 -2.Lh4 f5 -3.Lf6 h3 -4.Lb2 h4 -5.Lc1 h5 -6.b2xLa3 Lc5 -7.e3 Ld4 -8.c5 Lf6 -9.c4 Le7 -10.c3 Lf8 -11.c2 e7xTd6 -12.Td4 Kd8 -13.d6xTc7, retract Td4 to h1, Ka8 via g6 to e1, Pd6 to h2, g3-g2, g2xLf3 etc. (2013-08-28)
James Malcom: Is the given retraction unique? (2020-11-08)
Henrik Juel: Unique up to 11.c2-c3, I think (2020-11-08)
Henrik Juel: One of my favorite retros with just kings and pawns
even though the retroplay is not completely unique (so my previous comment is imprecise)
R: 2... h3-h2 3.Lf6-h4 h4-h3 or 3... f5-f4 also work
but not R: 1.e3-e4? or 1.c5-c6?, and White runs out of pawn retractions
nor 2. e3-e4? or 2. c5-c6? f5-f4 3. Le5-g3, and same difficulty (2020-11-09)
Henrik Juel: In the forward play we have several temporal implications, e.g.,
e2-e3 before b7xLa6 before g2xLf3 before g3-g2 before h2xg3
d6xc7 before e7xd6 before b2xLa3 before f4xLg3
Thierry was inspired by P0008574 (2020-11-09)
James Malcom: I see the similarities as well. If Thierry's last 21 moves, stopping at 11. c2-c3 of course, are indeed unique, it seems to be the record for a kindergarten position? (2020-11-09)
A.Buchanan: I think the last 2 single moves are determined. Prior to that it could be f5-f4 or h3-h2, no? (2020-11-10)
Henrik Juel: You are right, Andrew
So, no record, James (2020-11-10)
James Malcom: Ah well then-the linked problem with 16 moves by Gerd oughtta be it then, from what I've searched so far. (2020-11-10)
A.Buchanan: Isn’t the retro record one of the Breyer versions by Thierry Le Gleuher? (2020-11-10)
James Malcom: As far as I know, the TOTAL retro record is, all from P1339006, by Theierry indeed: Type A, 100 moves, Type B, 101 with bP6-h6 & White to move, and, finally Type C, 102 with bP6-h6 and wSc7-a8. (2020-11-10)
James Malcom: For Type B, I meant "bPh5-h6." (2020-11-10)
comment
Keywords: Whose move?, Kindergarten Problem
Genre: Retro
FEN: K1k5/p1Pp2p1/p1Pp4/8/P3P3/P4Pp1/3P1Ppp/8
Input: Gerd Wilts, 2011-02-06
Last update: James Malcom, 2020-11-08 more...
6 - P1292304
P. Darne
André Simonet

828 Probleemblad 11-12/1983
P1292304
(8+8) cooked
ser-r#25
1. h8=S 2. Sxg6 3. Sf4 4. g6 5. g7 6. g8=L 7. Lxe6 8. Lxg4 9. Lc8 10. g4 11. g5 12. g6 13. g7 14. g8=D 15. Dxd5 16. Df7 17. d5 18. d6 19. d7 20. d8=T 21. Td2 22. Lg4 23. Ld1 24. Se2 25. Df1 cxd2#
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Anton Baumann: cook: NL mit vielen Varianten (ZU): 1.h8=S 2.Sxg6 3.Se7! 4.Sxd5 5.Sf4 6.d5 7.dxe6 9.e8=L 12.g8=D 13.Dxg4 14.Df5 19.g8=D 20.D8d5 21.Dd2 22.Lh5 23.Ld1 24.Se2 25.Df1 cxd2# (2020-11-18)
comment
Keywords: Series mover, Allumwandlung, Kindergarten Problem
Genre: Fairies
FEN: 8/1p5P/k3p1p1/P2p2P1/P2P2p1/2p1p1P1/6P1/4K3
Input: Erich Bartel, 2014-12-12
Last update: Olaf Jenkner, 2020-11-18 more...
7 - P1352973
Mirko Degenkolbe
11 Boris Shorokhov 50 JT 07/2018
7. Lob
P1352973
(6+4) C+
h#11
1. Ke2 Kg1 2. Kd3 Kf2 3. Kc4 Ke3 4. Kxd5 Kf4 5. Kc6 Kxg4 6. Kd7 Kh4 7. Ke8 g4 8. Kf8 g5 9. Kg8 g4 10. Kh7 g6 11. Kh6 g5#
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[MD 1317]

Verführung:
Schwarz versucht, mittels 1.Kf2?!? 2.Kxg3 usw. zum Ziele zu kommen und durch eine weiße Dameumwandlung das Matt in der geforderten Zügezahl zu erzwingen. Dieser Plan scheitert allerdings daran, dass Weiß ziehen muss und dieses Unterfangen mittels 1.Kh2! unterbinden muss.

Drei weiße Figuren müssen das Feld g4 im Laufe der Lösung betreten. Der schwarze König betritt im Laufe der Lösung drei Ränder des Schachbrettes.
Wahrscheinlich ist diese Aufgabe auch für den Löser nicht allzu einfach zu lösen, weil das Mattbild nicht ersichtlich sein dürfte. Es mutet eher unwahrscheinlich an, dass dabei sogar die Zugreihenfolge absolut eindeutig ist. Durch die zusätzliche starke Verführung wird die Aufgabe inhaltlich nochmals aufgewertet. Zumal jeder versucht, mittels Umwandlung in eine weiße Dame ans Ziel zu gelangen, vergebens!
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-10-28)
comment
Keywords: Model mate, Kindergarten Problem
Genre: h#
FEN: 8/5p2/3p1P2/3P1P2/6p1/6P1/6P1/5k1K
Input: Marcin Banaszek, 2018-07-29
Last update: Marcin Banaszek, 2020-10-29 more...
8 - P1358618
Jorma Pitkänen
11696 feenschach 227 11-12/2017
Version
P1358618
(9+5) C+
s#9
1. d8=S! g5 2. b5 g4 3. b7 Ka7 4. b8=T g3 5. Se6 fxe6 6. f7 e5 7. d5 e4 8. f8=D e3 9. Df2 exf2,gxf2#
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Version zu P1343954
Gunter Jordan: Lt. Hans Gruber erschien diese Aufgabe in feenschach 227 (2017), tatsächlich erschienen im März 2018. Somit ist feenschach die Erstquelle (sofern die Aufgabe nicht noch irgendwo drittveröffentlicht wurde). Ich habe hier die Erstquelle auf feenschach geändert. Die ursprüngliche 'Erstquelle' The Problemist habe ich als Reprint eingegeben. [GJ] (2020-10-30)
comment
Keywords: Kindergarten Problem, under-promotion (S,T), Promotion (D), under-promotion in the key (S), Multiple publication, Pawn mate, Antiphönix, Pinning, Flight taking
Genre: s#
Computer test: Gustav 4.0c
FEN: k7/2PP1p2/1P3Pp1/8/1P1P4/3p4/3Pp1P1/4K3
Reprints: S2678c The Problemist 26-9, p. 363, 05/2018
Input: Felber, Volker, 2018-12-11
Last update: Gunter Jordan, 2020-10-30 more...
9 - P1368575
Sylwester Wojcik
Szachy 1957
P1368575
(2+2)
Gewinn
1. Kg5! b5 2. Kf4 Kf2 3. h4 Ke2 4. Ke4 Kd2 5. Kd4,Kd5 Kc2 6. Kc5 Kc3 7. h5! b4 8. h6 b3 9. h7 b2 10. h8=D+ gewinnt
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piotr: Please correct the description. Namely:
I know this chess composition. The author is Stefan Wójcik, not Sylwester.
The author is my grandfather.

Best wishes,
Pawel Wójcik (2020-11-25)
Pawel: Please correct the description. Namely:
I know this chess composition. The author is Stefan Wójcik, not Sylwester.
The author is my grandfather.

Best wishes,
Pawel Wójcik (2020-11-25)
comment
Keywords: Kindergarten Problem, Promotion
Genre: Studies
FEN: 8/8/1p5K/8/8/7P/8/6k1
Reprints: 538 Problemista 10/1963
Input: Marcin Banaszek, 2019-10-27
Last update: Alfred Pfeiffer, 2019-10-29 more...
10 - P1372653
Ottó Titusz Bláthy
37 Vielzügige Schachaufgaben , p. 41, 1890
P1372653
(9+9)
#108
1. Kd2 Ka7 2. Kc1 Kb8 3. Kb1 Ka7 4. Ka1 Kb8 5. Ka2 Ka7 6. Ka3 Kb8 7. Kb4 Ka7 8. Ka5 f6 9. Kb4 Kb8 10. Ka3 Ka7 11. Ka2 Kb8 12. Ka1 Ka7 13. Kb1 Kb8 14. Ka2 Ka7 15. Ka3 Kb8 16. Kb4 Ka7 17. Ka5 f5 18. Kb4 Kb8 19. Ka3 Ka7 20. Ka2 Kb8 21. Ka1 Ka7 22. Kb1 Kb8 23. Ka2 Ka7 24. Ka3 Kb8 25. Kb4 Ka7 26. Ka5 g6 27. Kb4 Kb8 28. Ka3 Ka7 29. Ka2 Kb8 30. Ka1 Ka7 31. Kb1 Kb8 32. Ka2 Ka7 33. Ka3 Kb8 34. Kb4 Ka7 35. Ka5 g5 36. Kb4 Kb8 37. Ka3 Ka7 38. Ka2 Kb8 39. Ka1 Ka7 40. Kb1 Kb8 41. Ka2 Ka7 42. Ka3 Kb8 43. Kb4 Ka7 44. Ka5 h6 45. Kb4 Kb8 46. Ka3 Ka7 47. Ka2 Kb8 48. Ka1 Ka7 49. Kb1 Kb8 50. Ka2 Ka7 51. Ka3 Kb8 52. Kb4 Ka7 53. Ka5 h5 54. Kb4 Kb8 55. Ka3 Ka7 56. Ka2 Kb8 57. Ka1 Ka7 58. Kb1 Kb8 59. Ka2 Ka7 60. Ka3 Kb8 61. Kb4 Ka7 62. Ka5 f4 63. Kb4 Kb8 64. Ka3 Ka7 65. Ka2 Kb8 66. Ka1 Ka7 67. Kb1 Kb8 68. Ka2 Ka7 69. Ka3 Kb8 70. Kb4 Ka7 71. Ka5 h4 72. Kb4 Kb8 73. Ka3 Ka7 74. Ka2 Kb8 75. Ka1 Ka7 76. Kb1 Kb8 77. Ka2 Ka7 78. Ka3 Kb8 79. Kb4 Ka7 80. Ka5 f3 81. Kb4 Kb8 82. Ka3 Ka7 83. Ka2 Kb8 84. Ka1 Ka7 85. Kb1 Kb8 86. Ka2 Ka7 87. Ka3 Kb8 88. Kb4 Ka7 89. Ka5 h3 90. Kb4 Kb8 91. Ka3 Ka7 92. Ka2 Kb8 93. Ka1 Ka7 94. Kb1 Kb8 95. Ka2 Ka7 96. Ka3 Kb8 97. Kb4 Ka7 98. Ka5 b4 99. Kxb4 a3 100. bxa3 Kxa6 101. b8=T Ka7 102. Tb6 Ka8 103. Ka5 Ka7 104. Tb1 Ka8 105. Kb6 Kb8 106. Td1 Kc8 107. Td6 Kb8 108. Td8#

100. ... Kb8 101. Kxc4 Kc7 102. Kd4 Kb8 103. Ke5 Kc7 104. a4 Kb8 105. Kd6 Ka7 106. Kc7 Kxa6 107. b8=D Ka5 108. Da7#,Da8#

Der Versuch 1. Kd4? Kc7 2. Ke5 findet in 2. ... b4! seine Widerlegung.
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Superseded by P1382048
James Malcom: I believe that this is the record for the longest Kindergarden problem! The second longest that I know of is P1299269. (2020-02-14)
James Malcom: Actually, as it turns out, this is superseded by P1382048, with a total of four whole moves. (2020-11-18)
more ...
comment
Keywords: Sea Snake, Kindergarten Problem, Move Length Record, Promotion (T,D), under-promotion
Genre: n#
FEN: 1k6/1P3ppp/P1p5/1pP5/p1p3p1/2P1K1P1/1P3P1P/8
Input: James Malcom, 2020-02-14
Last update: James Malcom, 2020-11-18 more...
11 - P1376231
Zdzislaw Nowak

P1376231
(8+8) C+
h#8
1. Kc4 Ka2 2. Kxd5 Kb3 3. Kxe6 Kc4 4. Kf5 Kd5 5. Kf6 Kxe4 6. Ke6 Kxe3 7. Kd5 Kd3 8. e6 e4#
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Die Aufgabe wurde im Reprint (Schach 06/2020) in Notation abgedruckt. Die Originalquelle ist nicht bekannt.
Silvio Baier: Originalquelle ist 15201v Schach 5/2003, S. 80. Davor wurde eine illegale Stellung als 15201 in Schach 3/2003 veröffentlicht. (2020-11-09)
comment
Keywords: Pawn mate, Kindergarten Problem, Model mate, Switchback (k), Round Trip (k-3), Selfblock, Tempo Loss, Umnov (verzögert)
Genre: h#
Computer test: Gustav 4.0 i
FEN: 8/4p1p1/1p1pP1P1/1P1Pp3/1P2p3/1k2p3/1P2P3/K7
Reprints: Schach , p. 80, 06/2020
Input: Gunter Jordan, 2020-05-23
Last update: Gunter Jordan, 2020-05-23 more...
12 - P1380746
C. P. Carpenter
The Pittsburgh Gazette 25/12/1910
P1380746
(3+4)
White to play and win
1. g8=D! Gewinn!-See the attached story.
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Reprint: 1911: https://www.newspapers.com/clip/25254295/the-royal-game-of-chess/ "Christmas Problems"

1910: http://www.chessarch.com/excavations/item.php?=a=1&source=Pittsburgh_Gazette_Times&date=1910.12.25

"The First Christmas Problem"

By C.P. Carpenter

The majority of chess players, familiar as they are with that form of chess joke called "Christmas Problems," may not know until they have read the following beautiful legend just how and when the custom originated nor, for that matter, may they be certain of it then, so cursed is this romantic age with belief.
In the Palace of the World, under the pagan line for December 25, was held the great feast of Brumalia. Upon an occasion of this festival, in the reign of the great King Eshamat, that monarch, his guests and vezers were assembled in the readiness for the festival and whilling away the interval at chess when a regged fakir approached the palace gates and craved admission from Elkanoj Bey, the sentry. That official surveyed him grimly.
"Have you got a card?" he asked with elaborate politness.
"I am a poor man, your excellency," replied the fak. "and the only card I ever had was the two-spot out of my pinochle deck,, but I am fearfully keen for my lunch and no harm, but only good. shall come to you see if you allow me to enter. I swear it as Allah sees it."
"Better beat it while Allah still see you." replied the sentry wearily. "He won't be able to see you if you stick around here long."
"I have traveled far, Effendi," replied the fakir, "and am weary. If the king phrase. I may be able to show him a wonderful play at chess. If he cannot solve it perhaps he may reward his slave with a seat at the banquet."
"In that case." said the sentry,"enter, and be your own usher. If you can get away with it, peace o you: and if noy peace to you."
Now the king fancied himself as a solver. and the fakir was well recieved when he had made known his mission.
"Know. Oh. King," said the fakir. as he set up the pieces, "that this position occured in a game between the great King Mahmud and my friend. Ali Bi, who had the white pieces, and it ran into this puzzling position with white to play, andd though it appears impossbile, netherless my friend Ali Bi did may and win this with one move. Now if his gracious majesty csn tell me how. I forfeit my lucnh: if not, I kick in at the festal board. Is it a bet?"
"You are somewhat shy on collateral,"" replied the kin: "netherless we will at least call it a bargain."

BLACK
(diagram)
WHITE

White to play and win

Long time did King Eshamat pore over the position without avail, while his company shifted about uneasily and the head cook cursed softly, but fluently in his mother tongue. Finally the king arose with a grunt of disgust.
"I pass," he said. 'What's the answer?"
'It was not in the bargain, your majesty," replied the fakir, "thay I should tell. only that your majesty should fail to find."
"Netherless?" said the king, "since we cannot solve, the problem it is our privlege to look in the appendix for answer. Selim, bring an ax."
"Pardon your majesty," cried the faki. "I will explain the mystery."
"I should be charmed," said the king drily. "What was the movr?"
"My friend Ali BI," replied the fakir, "pushed the pawm."
"But what did he call for?"
"He called for a drink but it didn't come," said the fakir, with a smile which didn't fit his face. "I hope it doesn't happen again."
"Quick fool." cried the kinh. "What piece did you call fo>"
"A queen, your majesty"
"But that woulld give stalemate."
"Even so, your majesty, "but it is also won. My frien, Ali Bi, is a weaker player and King Mahmad graciously offered odds of a draw."
King Eshamat sank into a chair and gezed at the faker. He shook himself, unable to rouse. He shook himslef again, but failed to fill. The fakir moistened his lips and glanced at the feast.
'You bargain, your majesty," he suggested timidly.
"True." said he king. "Salim, find this fakir a place at the feast."
"Very good, yout majesty," said the servant, "but the places are full. Where would it please your majesty I should put him/"
'Ah," said the king grimly, "just crack his skull and put him with the rest of the nuts."
James Malcom: In my view, since this has a story about a majesty, and give the board state, that 1. g8=K! would be a far better solution as I thought before I stumbled upon the source today. Sygyzy declares this a draw, even if -bPh2. =Q/R is stale, and =B/S+ is too weak and Black can fortress. =P does nothing of course, so king promotion is just right here it was for Goldilocks. (2020-10-17)
A.Buchanan: Thanks for typing this in, James, although I don’t really understand the joke. And if 1. g8=K how does Wh dislodge bK from g6/h6? (2020-10-18)
Henrik Juel: The joke seems to be that Black has agreed to accept stalemate as a win for White
If we disregard this, I agree that White cannot win with an extra king; it is easy to dislodge black king from g6/h6, but later White cannot dislodge him from g8/h8 (2020-10-18)
A.Buchanan: If the convention is dynasty, then promotion to a king turns both wKs into erlkings until one is captured. I think these can mate bK, no? (2020-10-19)
comment
Keywords: Joke, Kindergarten Problem, Miniature, Promotion in the key (K), Joke promotion
Genre: Studies
FEN: 8/6Pp/7k/7p/7P/8/7p/7K
Reprints: Hartford Courant , p. 15, 6/2/1911
Input: James Malcom, 2020-10-07
Last update: James Malcom, 2020-10-17 more...
13 - P1381266
James Malcom
(2) MatPlus.net Forum 27/9/2019
P1381266
(6+7) C+
#7
1. Kc1! d6 2. h8=S! gxh6 3. Sg6 h5 4. Sf4 h4 5. Sxd3 h3 6. Se1 h2 7. Sc2#
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https://www.matplus.net/start.php?px=1603494562&app=forum&act=posts&fid=xshown&tid=2346
James Malcom: This composition is one of my personal favorites amongst mine. It was inspired be Krabbe's Journal #89, which touches on the so called theme of "remote knight promotion." The point of this is to show the aximum diaganol distance with kings and pawns only.

A Meredith rendering is still pending for any geniuses out there. (2020-10-24)
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comment
Keywords: Stalemate avoidance, Kindergarten Problem, under-promotion (S)
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/3p2pP/7P/p2P4/p7/P2p4/p2P4/k2K4
Input: James Malcom, 2020-10-24
Last update: Alfred Pfeiffer, 2020-10-26 more...
14 - P1381565
Mirko Degenkolbe
C252 SuperProblem (Website) 15/05/2020
P1381565
(6+1) C+
#7
1. a5? Kg8!
1. f7? Kg7!
1. g7+? Kg8 2. Kg4!
1. ... Kh7!

1. Kg4! Zugzwang
1. ... Kg8 2. g7 Kf7 3. Kf5 Ke8 4. g8=D Kd7 5. Db8 Kc6 6. Ke6 Kc5 7. Dd6#
3. ... Kg8 4. Ke6 Kh7 5. Kf7 Kh6 6. g8=D Kh5 7. Dg5#
play all play one stop play next play all
[MD 1468]
Definition:
Three trys by different white pions fail on three different escapes of the black king from the corner.
In the solution, two completely different matt images: one on the edge, which ends with pattern matt, and one surprisingly in the middle of the board.
Kindergarten problem.
Rex-solus.
Miniature.
A.Buchanan: Two of the tries are bogus in that the sK move is forced. It’s like counting a random queen check as a try if Black’s only legal reply is to capture the queen (2020-11-06)
more ...
comment
Keywords: Rex solus (s), Kindergarten Problem, Miniature, Promotion (D)
Genre: n#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 7k/8/5PP1/8/P6P/3P3K/8/8
Input: Felber, Volker, 2020-11-05
Last update: Felber, Volker, 2020-11-11 more...
15 - P1382048
Ottó Titusz Bláthy
37 Vielzügige Schachaufgaben 1890
Version By Unknown
P1382048
(9+9)
#112
1. Kb4 Ka8 2. Ka3 Kb7 3. Ka2 Ka8 4. Kb1 Kb7 5. Ka1 Ka8 6. Ka2 Kb7 7. Ka3 Ka8 8. Kb4 Kb7 9. Ka5 f6 18. ... f5 27. ... g6 36. ... g5 45. ... h6 54. ... h5 63. ... f4 72. ... f3 81. ... h4 90. ... h3 99. ... b4 100. Kxb4 a3 101. Kxa3 Ka8 102. Ka4 Kb7 103. Ka5 Ka8 104. b4 Kb7 105. b5 cxb5 106. Kb4 Kc6 107. a8=D+ Kd7 108. De4 Kc8 110. c6 Kd8 111. Kxb5 Kc8 112. De8#
play all play one stop play next play all
An elongated version of P1372653 by four moves; the original origins are unknown

Move length record for a kindergarten problem
A.Buchanan: Any kind of assessment of soundness of this one? (2020-11-19)
James Malcom: Andrew, there is no doubt about the soundness. Sure, the ending may have a few duals, but those are generally acceptable in Blathy's correct work. Here is the proof.

All White pawns are immobile. The kingside mustn't move, or else Black breaks through and wins. Nor can a7, b2, or b6 without losing the winning chance.

The Black king is stuck, of course. The Black kindgside pawns are forever held up by White's, and the queenside ones can't move, or else Black would soon be in zugzwang and lose.

Lastly, the White king can't go after the Black pawn to shorten the game, or the Black queenside pawns must be tended to. If the White king reaches either e5 or f4, then Black plays b4!, threatening to queen soon. So the White king must hurry back, Black gets the White queen stuck as well, and it is a draw.

With a restricted White king to the given triangulation corridor, the Black king stuck, all pawns pawns frozen on their journeyes, the soundness is guranteed. (2020-11-19)
James Malcom: Furthermore, on move 99 with Black to move, chess.com analysis agrees with checkmate in move 112, albeit with a few move order corrections that I've just made. So it is still correct, with a Blathy style taste in duals. (2020-11-19)
Anton Baumann: Nach 99. - b4 gemäss Gustav noch 12 Züge; das ist #111.
Korrektur: ... 108.De4 Kc8 109.c6 Kd8 110.Kxb5 111.De8# (2020-11-20)
comment
Keywords: Kindergarten Problem, Move Length Record, Promotion (D), Sea Snake
Genre: n#
FEN: 8/Pk3ppp/1Pp5/KpP5/p1p3p1/2P3P1/1P3P1P/8
Input: James Malcom, 2020-11-18
Last update: Alfred Pfeiffer, 2020-11-26 more...
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The problems of this query have been registered by the following contributors:

Felber, Volker (3)
hpr (1)
Frank Müller (1)
HBae (1)
Gerd Wilts (1)
Erich Bartel (1)
Marcin Banaszek (2)
James Malcom (4)
Gunter Jordan (1)