Die Schwalbe

3 problem(s) found in 3992 milliseconds (displaying 3 problem(s)). [COMMENTDATE>=20220810 AND NOT G='Fairies' AND K='konsekutive Umwandlungen 8'] [download as LaTeX]

1 - P1197117
Karlheinz Bachmann
11822v Die Schwalbe 200 04/2003
P1197117
(9+6) C+
s#16
1. h8=D+ Kg6,Kg5 2. g8=D+ Kf5 3. Df6+ Kxf6 4. f8=D+ Ke5 5. Dxe6+ Kxe6 6. e8=D+ Kd5 7. Dxd6+ Kxd6 8. d8=D+ Kc5 9. Dc6+ Kxc6 10. c8=D+ Kb5 11. b8=D+ Ka4 12. Db4+ Txb4 13. a8=D+ Kb5 14. Dca6+ Kc5 15. D8a7+ Tb6 16. Dc4+ Txc4#
play all play one stop play next play all
Korrektur in Heft 223, 02/2007, Seite 50.
Anton Baumann: C+ Gustav 4.2a (2022-08-24)
comment
Keywords: Promotions to queens, konsekutive Umwandlungen 8 (DDDDDDDD)
Genre: s#
FEN: 8/PPPPPPPP/3pp2k/8/4rr2/2K5/8/3q4
Reprints: 11822v Die Schwalbe 223, p. 50, 02/2007
Input: Frank Müller, 2011-06-10
Last update: Marcin Banaszek, 2022-08-30 more...
2 - P1405012
James Malcom
FIDE World Cup 10th 10/2022
Spezielle ehrende Erwähnung
P1405012
(12+12)
#16
1. c7-c8=D! b2-b1=S+! 2. Df1xb1 a2xb1=S+ 3. Kc3-d3 e2-e1=S+ 4. Kd3-e3 f2-f1=S+! 5. Ke3-f2 h2-h1=S+ 6. Kf2xe1 f3-f2+ 7. Ke1-e2 Sf1-g3+ 8. Ke2-e3 Sa1-c2+ 9. Lb3xc2 f2-f1=S+ 10. Ke3-f3 Sb1xd2+ 11. Td5xd2 g2-g1=S+ 12. Kf3-g2 Sh5-f4+ 13. Tg4xf4 Sf1-e3+ 14. Kg2xg1 Sg3-e2+ 15. Td2xe2 Sh1-f2 16. Dc8-b7#
6. ... Sa1-c2+ 7. Lb3xc2 f3-f2+ 8. Ke1-e2 Sf1-g3+ 9. Ke2-e3 f2-f1=S+ 10. Ke3-f3 ...
4. ... Sa1-c2+ 5. Lb3xc2 f2-f1=S+ 6. Ke3-f2 h2-h1=S+ 7. Kf2xe1 f3-f2+ 8. Ke1-e2 ...
play all play one stop play next play all
Judge Oto Mihalco, final award 10/2022
Henrik Juel: Popeye 4.61 with 'opt thr 1' found no flaws
Congratulations, James (2022-10-08)
msterkowiec: Strange, I seem to see #12 here ( kB1N4/2P5/8/2pRP2n/2P1P1R1/bBK2p2/pp1Ppppp/n4Q2 ) with 1.R:c5 for example like this: 1... b1N+ 2. Q:b1 ab1N+ 3. Kd4 N:b3+ 4. Kd5 Nc3+ 5. dc3 Nf6+ 6. ef6 f1Q/e1Q 7.c8Q etc. (2022-10-09)
SCHRECKE: Ja, NL in 12 Zügen: 1. Txc5 (Gustav 4.2b) (2022-10-09)
James Malcom: Thank you Henrik.

Strange, this usually never happens to me. This is indeed the position I sent. Yet I know I tested for Txc5. I made a mistake, but I forget how. In any case, Td5-d7 seems to fix the issue? (2022-10-09)
msterkowiec: Yes, in position #16 kB1N4/2PR4/8/2p1P2n/2P1P1R1/bBK2p2/pp1Ppppp/n4Q2 John Galt 4.6 finds no other solution but 1.c8Q.

BTW: here you can find a link to it: http://szachowe.pl/viewtopic.php?f=18&p=118120&sid=6e44d27ffcffe4cf867c23001ab11773#p118120

I write to be super fast and I believe it can save quite much time of chess composers...
(It's not a popular piece of software and Windows pops out quite many warnings about it, anyway it's enough to trust your antivirus) (2022-10-12)
Olaf Jenkner: The position Td7 is C+ (Gustav 4.2 b)
There are three full length variations. (2022-10-13)
comment
Keywords: konsekutive Umwandlungen 8 (Dsssssss)
Genre: n#
FEN: kB1N4/2P5/8/2pRP2n/2P1P1R1/bBK2p2/pp1Ppppp/n4Q2
Input: Marcin Banaszek, 2022-10-08
Last update: Olaf Jenkner, 2022-10-13 more...
3 - P1411845
James Malcom
MatPlus.net Forum 15/08/2023
After David Zimbeck
P1411845
(12+12)
#15
1. a8=D+! Kxb6 2. Da7+ Kxa7 3. Ta8+ Kb6 4. b8=D+ Txb8 5. cxb8=D+ Kc6 6. Dd6+ Kxd6 7. d8=D+ Ke5 8. e8=D+ Kf4 9. Dg5+ Kxg5 10. g8=D+ Sxg8 11. hxg8=D+ Kf4 12. f8=D+ Ke3 13. Dxf3+ Kxf3 14. Dh5+ Ke3 15. Dg3#
14. ... Kf4 15. Dgg5#
10. ... Kf4 11. f8=D+ Ke3 12. Dxf3+ Kxf3 13. Dh5+ Sg4 14. Dgxg4+ Ke3 15. Dg3#,Dhh3#
11. ... Sf5 12. Dxf5+ Ke3 13. Dxf3+ Kxf3 14. Dh5+ Ke3 15. Dg3#
14. ... Kf4 15. Dgg5#
play all play one stop play next play all
Record of 8 white queen promotions
Improvement of P1201958
https://www.matplus.net/start.php?px=1692327608&app=forum&act=posts&fid=gen&tid=3061&pid=25076#n25076
Schade um das dualistische Matt. Im strengen Sinn also kein Rekord.
SCHRECKE: sTg8 gehört nach f8! (2023-08-18)
James Malcom: Fixed. (2023-08-18)
SCHRECKE: Der wSb6 ist überflüssig!! (2023-08-18)
James Malcom: That's a surprise. (2023-08-18)
comment
Keywords: Promotion (DDDDDDDD x8), Construction record, Promotion key, konsekutive Umwandlungen 8 (DDDDDDDD), Checking key, Schlüssel = Eckzug, Phoenix, Antiphönix, Switchback (k)
Computer test: Popeye 4.87 Gustav
FEN: 1R3r2/PPPPPPPP/kN5n/1pp5/1n1bp3/2r2p2/1Kbq4/7N
Input: James Malcom, 2023-08-18
Last update: Gunter Jordan, 2023-08-18 more...
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The problems of this query have been registered by the following contributors:

Frank Müller (1)
Marcin Banaszek (1)
James Malcom (1)