Die Schwalbe

18 problem(s) found in 2734 milliseconds (displaying 18 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Schlagschlüssel']

1 - P1249088
Roland Löwe
Mirko Degenkolbe

2833 Freie Presse (Chemnitz) 31/07/1987
1. Lob
P1249088
(10+8)
#2
1. Lf1? droht 2. Lg2#
1. ... Kf3 2. Sg5#
1. ... Sd2 2. Dxd5#
1. ... Sxc2!

1. Sxd5! droht 2. Sc3#
1. ... Kxd5 2. Txd4#
1. ... Ld2 2. Lf3#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.85 (2020-11-25)
comment
Keywords: Pinning, Line opening, Capture key, Sacrifice key
Genre: 2#
FEN: 8/2N2N1b/5R2/1K1p4/R2pkb2/1n4pP/Q1P1B3/n5B1
Input: Felber, Volker, 2012-09-18
Last update: Felber, Volker, 2014-08-19 more...
2 - P1268208
Mirko Degenkolbe
idee & form , p. 913, 07/1992
5. Platz
Sachsen - Schweiz 1991-1992
P1268208
(8+10) C+
#2
1. Tf6? droht 2. Shxf7,Sxg4# c3!

1. Txc4! droht 2. Sgxf7#
1. ... gxf5 2. Shxf7#
1. ... Txf5 2. Sg4#
1. ... Lxc4 2. De3#
1. ... Txc4 2. De7#
1. ... Tb7 2. Te4#
play all play one stop play next play all
more ...
comment
Keywords: Azerbaijanian Novotny, Capture key, Sacrifice key
Genre: 2#
Computer test: Popeye 4.61
FEN: 1b6/5pK1/2R3pN/p3kPN1/nrp5/Qb4P1/3R4/5r2
Input: Felber, Volker, 2013-04-22
Last update: Felber, Volker, 2020-11-11 more...
3 - P1328162
Yuri Paramonov
6610 Seven Chess Notes (131) 12/2016
2. Lob
P1328162
(4+3) C+
s#10
1. Dxf3+ Kc5 2. Dc3+ Kd6 3. Dd4+ Ke6 4. Dd5+ Kf6 5. Tf7+ Kg6 6. Le4+ Kh6 7. Dd6+ Kh5,Kg5 8. Tf5+ Kh4,Kg4 9. Df4+ Kh3 10. Lg2+ Dxg2#
1. ... Kd6 2. Df6+ Kc5 3. De5+ Kc4 4. Dd5+ Kc3 5. Tb3+ Kc2 6. Le4+ Kc1 7. Dc5+ Kd1,Kd2 8. Td3+ Ke1,Ke2 9. De3+ Kf1 10. Lg2+ Dxg2#
play all play one stop play next play all
more ...
comment
Keywords: Capture key, Checking key
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: q7/1R3Q2/2k5/8/8/5p2/6B1/7K
Input: Frank Müller, 2016-12-02
Last update: Alfred Pfeiffer, 2020-10-14 more...
4 - P1373235
Samuel Loyd
E50 The New York Clipper , p. 390, 28/03/1857
P1373235
(7+10) cooked
#5
1. Dxa3+! Kc2 2. Dxb3+ Txb3 3. Se3+ fxe3 4. Lxd3+ Kxd3 5. 0-0-0#
play all play one stop play next play all
Cook: Dual
2. Ta2+ Tb2 3. Txb2+ Kc1 4. Ta2+,Th2+,Tg2+,Tf2+,Te2+,Td2 Kb1 5. Sxc3#
"Trick 'o the trade.".
James Malcom: This is the oldest known problem that features the Belen theme. (2020-09-20)
comment
Keywords: Capture key, Castling as mating move (wl), Checking key, Sacrifice of white pieces, Belen Theme
Genre: n#
FEN: 3b4/8/7r/6q1/R4p2/nnpb4/Q7/RrkNKBN1
Reprints: (5) MatPlus.net Forum 3/10/2019
Input: Felber, Volker, 2020-03-08
Last update: James Malcom, 2020-09-21 more...
5 - P1380103
Manuel Pérez Carballo
253 Tim Krabbé's Website 17/7/2004
"The Belén Theme"
Gewidmet Belén (His partner)
P1380103
(8+5)
#4
1. Sxa4! droht 2. Sbc3+ Tb1 3. Txb1
1. ... Txc4 2. Sbc3+ Kc2 3. Ld3+ Kxd3 4. 0-0-0#
2. ... Tb1 3. Ld3 Txa1 4. Se2#
1. ... Txb1 2. Ld3 Txa1 3. Txc2+ Kb1 4. Sc3#
play all play one stop play next play all
"This problem introduces a theme which, to the composer's and my knowledge and surprise, seems not to have been thought of before. Pérez Carballo (a Spanish chess player of around 2150 living in Glasgow - one of the first things he did there was to go to a library where he could see with his own eyes Barbier's 1895 Glasgow Weekly Citizen articles in which the Saavedra position was discovered - "I was almost crying of excitement as I turned the pages of the thick bound volumes until I got to the very colums") always felt attracted to the unusual in chess. He didn't play the Spanish but the Portuguese (1.e4 e5 2.Bb5) and composed some problems and studies with castling and en passant ideas, but this is his first publication.
The idea for this problem had "haunted him for almost a decade", but the best he had been able to come up with was a version with an inexcusably bad key; the capture of a Queen. Then one weekend, he decided to give it one last, all-out try. When he went to bed early Sunday morning, nothing had worked but after waking up, he realised he had seen the solution in a dream. It still needed a finishing touch - the a4 and b4 pawns had been absent - but when he added them, it worked.

1.Nxa4 threatening 2.Nbc3+ and mate. Black has two defences:
a) 1...Rxb1 when 2.Bd3 Rxa1 3.Rxc2+ Kb1 4.Nc3 is mate, and
b) 1...Rxc4 2.Nbc3+ Kc2 (2...Rb1 3.Bd3 Rxa1 4.Ne2 mate) 3.Bd3+ Kxd3 4.O-O-O mate

The switchback mate 4.Nc3 in variation a) and the model mate 4.Ne2 in b) are nice, but 4.O-O-O mate in b) is the central idea of the Belén Theme: in a direct-mate, the Black King starts at c1 and is mated by O-O-O.

But why Belén theme? Pérez Carballo sent me his problem on 17 July, because on that day it was 5 years ago he met his "other passion outside chess", his partner Belén - the Spanish form of Bethlehem. He dedicates his problem to her, and names the theme after her, wondering if ever before a chess theme has been named after a loved one.

So far so good, but there could be two reasons he's holding his breath now. A reader (Hanspeter Suwe for instance, the editor of the castling magazine König & Turm) might know of an earlier Belén problem - and a composer might be inspired to make a better Belén, either improving on this setting, or creating an new one. Pérez Carballo does realize his problem is not the perfect rendering of the theme. For one thing, the ideal Belén would be a three-mover. The flight-taking key is not very good; a black piece on b1 would conceal the solution better (but then it would have to be a four-mover) and he did not manage the Meredith form - 12 pieces or less. But the Pa3 is needed to stop 1.Na3+; the Pa4 is needed to stop 1.Nd2+ Kb2 2.Rb1+ Kxa3 3.Rxb3 mate, and the Pb4 is needed to stop 1.Nd2+ Kb2 2.Rb1+ Kxa3 3.Rxa4 mate.

But he did create the first Belén - nobody can take that from him."
James Malcom: This is the problem on Tim Krabbe's site that sparked the world wide chess phenomenon known as the Belen Theme and the problem that named the theme-https://timkr.home.xs4all.nl/chess2/diary13txt.htm (2020-09-20)
Henrik Juel: The thematic variation is correct
1.Sc3*a4 Rc2*c4 2.Sb1-c3+ Kc1-c2 3.Be2-d3+ Kc2*d3 4.0-0-0#
But the problem is very damaged by duals in other variations, e.g.
1... Tcc3 2.Ld1,Ld3,Sd2+,Sxc3+ (2020-09-20)
comment
Keywords: Belen Theme, Castling as mating move, Capture key
Genre: n#
FEN: 8/8/8/8/pPR5/PrN1p3/2r1B3/RNk1K3
Input: James Malcom, 2020-09-20
Last update: Alfred Pfeiffer, 2020-09-22 more...
6 - P1380143
Peter Hoffmann
H48c Der Reiz des Ungewöhnlichen 9/2019
P1380143
(14+9) C+
#5
1. Sxc3+! Kc2 2. b8=T! f5 3. gxf6ep Lb5 4. Txb5 Kd3 5. 0-0-0#
play all play one stop play next play all
See the improved P1380148

http://www.berlinthema.de/Auswahl_PH.pdf-"In der einschlägigen Diskussion im „MatPlus Forum“ schälte sich heraus, daß Darstellungen mit Turm- oder Läuferumwandlung noch nicht existier(t)en, und dies rief P.H. auf den Plan, der ja ausdrücklich unerforschtes Terrain sucht.
In seinem Stück ist die Unterverwandlung in einen Turm im zweiten Zug logisch begründet – was auch hier das erste Zugpaar aufgesetzt wirken läßt. Mir scheint, daß das Belén-Motiv eher eine hinderliche Vorgabe ist ... 51
(Die Zweckreinheit der schwarzen Reihenfolge-Auswahl, welche die Damenumwandlung
widerlegt, soll hier nicht näher untersucht wurden. Unseres Erachtens ist sie zweckrein, falls man bereit ist, den Austausch der Möglichkeit 5. L:e4# durch die Möglichkeit 5. 0-0-0# als bloße Kompensation zu sehen.)"

http://matplus.net/start.php?px=1570441154&app=forum&act=posts&fid=gen&tid=2361&pid=17978#n17978

Post #1-"A wonderfull surprise! PH presented today a brand new Valladao-Belen, its already published in Erik Zierke's online book in PDF on Hoffmann's works:

http://www.berlinthema.de/AUSWAHL_PH.pdf

page 181, with full solution and comments. In page 180 are also presented, and commented, the known examples of Valladao-Belen (Just two so far, one of them evolved online recently here in MP):

http://matplus.net/start.php?px=1569833313&app=forum&act=posts&fid=xshows&tid=2343&pid=17926#n17926

After a promotion to Queen, and a promotion to Knight, now we have a promotion to Rook.

****** Peter, thanks for Your interest in the Valladão-Belén!! :"

Post 7-"In his excellent # 5, Peter Hoffmann introduces important novelties in the VB field: The promotion move act in three different levels of significance (control of b3, of b5 avoiding to affect d3, and - not least- create a threat of mate in two in e4, allowing a consistent en passant part in real play) : 2.b8 = R is the most impressive single movement in the whole VB's history!

He refers to the Belén as a "motif". In the old Rebnora forum discussions Frank Richter alluded to an "ornamental effect". For Erik Zierke, the Belén condition arrive to become an obstacle ('Hindernis') for the more satisfactory expression in the Valladão field (in the same book we find others of Peter Hoffmann's creations in this field)."
James Malcom: The first Valladao-Belen with a rook promotion. (2020-09-22)
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comment
Keywords: Belen Theme, Valladao Task, Capture key, Checking key, under-promotion (T), En passant, Castling as mating move
Genre: n#
FEN: B3b3/1P3pPQ/4p3/3pP1P1/3Pn3/BPp2p2/pP3P2/RNk1K3
Reprints: (1) MatPlus.net Forum 30/9/2019
Input: James Malcom, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-22 more...
7 - P1380148
James Malcom
Peter Hoffmann

H48d Der Reiz des Ungewöhnlichen 9/2020
JM nach PH
P1380148
(15+7) C+
#5
1. Sxc3+! Kc2 2. b8=T! d5 3. cxd6ep Dxb5,Dc6 4. Txb5,Lxc6 Kd3 5. 0-0-0#
3. exd6ep? Dxe6+!
3. Lxd5? Dd8!
play all play one stop play next play all
See P1380143

http://www.berlinthema.de/Auswahl_PH.pdf-"James Malcom weist darauf hin, daß ohne die schwarze Logik in der Widerlegung der Damenumwandlung man eine eindeutige Zugreihenfolge in der Lösungsphase erhalten kann. Danke für das Interesse an unserer Schrift!"
James Malcom: Some months back, I managed to improve Hoffmann's P1380143. But has only been published recently alongside it, and ironically in the same month. The point here is that there is but a single solution. It turned out to be scarcely possible, requiring every White man but the queen. (2020-09-22)
comment
Keywords: Belen Theme, Valladao Task, Capture key, Checking key, under-promotion (T), En passant, Castling as mating move
Genre: n#
FEN: B1N1q3/1P1p4/4P1p1/1RP1P1P1/8/BPp2p2/pP3P2/RNk1K3
Input: James Malcom, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-22 more...
8 - P1380158
James Malcom
chessproblem.net 14/10/2019
P1380158
(7+8) C+
#3
1. b8=D? Lb3!

1. Lxa2+! Kc2 2. b8=D Kxd3 3. 0-0-0#
2. ... e2,~ 3. Db1#
1. ... Kb2 2. b8=D+ Kxa1 3. Db1#
2. ... Kxa3 3. Lb1#,Lxc4#
2. ... Kc2 3. Db1#
play all play one stop play next play all
https://www.chessproblem.net/viewtopic.php?f=7&t=60&p=2362
Henrik Juel: C+ Popeye 4.61, except for the mate dual after 2... Kxa3 (2020-09-22)
comment
Keywords: Belen Theme, Capture key, Checking key, Promotion, Castling as mating move
Genre: 3#
Computer test: Popeye 4.61
FEN: 8/1P6/8/8/2ppp3/P1pPp1n1/b7/RBk1K1N1
Input: James Malcom, 2020-09-22
Last update: James Malcom, 2020-09-23 more...
9 - P1380202
Thomas Hanusch
Mirko Degenkolbe

1538 Mat Plus 37-38 2010
P1380202
(5+7) C+
#12
1. Lxd2+! Kxd2 2. Dd4+ Kc1 3. Sf4 Lc4 4. Sfe2+ Lxe2 5. Sxa2+ Kb1 6. Sc3+ Kc1 7. Sxe2+ Kb1 8. Sc3+ Kc1 9. Kf4 Sd2 10. Dg1+ Sf1 11. Dxf1+ Kd2 12. Se4#
play all play one stop play next play all
more ...
comment
Keywords: Capture key, Checking key
Genre: n#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-09-24)
FEN: 6b1/8/8/6K1/7Q/2N5/pppp2N1/2k1Bn2
Input: Felber, Volker, 2020-09-23
Last update: Felber, Volker, 2020-11-17 more...
10 - P1380439
James Malcom
MatPlus.net Forum 23/09/2020
P1380439
(13+1) C+
#4
1. ... Kxc2 2. Sd2! Kxd3 3. Sc4 Kc2 4. Se3+ Kd3 5. Td1#
play all play one stop play next play all
See also P1380440
Henrik Juel: Apparently there is a #3
1.c4? Kxc2 2.Sc3 Kxd3 3.0-0-0?
But two facts prevent this try
1. Black has no last move, so he has the move
2. wKe1 must have moved, so White cannot castle
The solution is
0... Kxc2 1.Sd2 Kxd3 2.Sc4 Kc2 3.Se3+ Kd3 4.Td1#
C+ Popeye 4.61 (2020-09-29)
comment
Keywords: Rex solus (s), Belen Theme (Anti-), Cant Castler, No legal last move for Black, Capture key
Genre: n#, Retro
Computer test: Popeye 4.61
FEN: 8/8/8/8/8/BPPP1P2/PPB2P2/RNk1KR2
Input: A.Buchanan, 2020-09-29
Last update: Alfred Pfeiffer, 2020-10-08 more...
11 - P1380493
Bosko Miloseski
M1651 StrateGems SG90 04-06/2020
P1380493
(6+8) C+
#14
1. Ta8xa3+! Ka1-b1 2. Sf2-d1 e5xd4 3. Ta3-a4 e3-e2 4. Ta4xd4 e2xd1=D 5. Lb3xd1 Ka1,Ka2 6. Td4-a4+ Kb1 7. Ta4-a8 d5-d4 8. Kb8-a7 Ka1,Ka2 9. Ka7-b6+ Kb1 10. Kb6-a5 Ka1,Ka2 11. Ka5-b4+ Kb1 12. Kb4-a3 Kb1-a1 13. Ka3-b3+ Ka1-b1 14. Ld1-c2#
play all play one stop play next play all
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comment
Keywords: Capture key, Checking key
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: RK6/8/8/3pp3/3P4/pB1Pp3/1p1p1N2/k1b5
Input: Marcin Banaszek, 2020-09-30
Last update: Alfred Pfeiffer, 2020-10-08 more...
12 - P1380964
Pyotr Zabirokhin
E26 Moscow tourney 06/2020
1. ehrende Erwähnung
P1380964
(5+10) C+
h#4
0.2.1...
1) 1. ... Lh7xf5 2. Db5xb3 Lf5xe4 3. Db3xc2 Le4xb7 4. Dc2-a2 Lb7-e4#
2) 1. ... Tb8xb7 2. Le4xc2 Tb7xb5 3. Lc2xb3 Tb5xf5 4. Lb3-a2 Tf5-b5#
play all play one stop play next play all
Final award 10/2020
Judge Valery Gurov
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comment
Keywords: Capture key
Genre: h#
Computer test: Popeye 4.83
FEN: 1R1K4/1pp2p1B/4p3/1q3p2/4b3/1P6/2P5/nkn5
Input: Marcin Banaszek, 2020-10-15
Last update: Alfred Pfeiffer, 2020-10-15 more...
13 - P1381249
Avelino Conte
8 La Corona (Barcelona) 17/11/1860
P1381249
(7+5)
#4
1. bxc6+! Lc5 2. Le5 Td7 3. Lg6 Txa7,~ 4. Le4#
Co-Dual 3. Lh5 Txa7,~ 4. Lf3#
play all play one stop play next play all
SCHRECKE: Verschiebt man die Stellung um 1 nach rechts, ist alles in Ordnung! (2020-10-23)
comment
Keywords: Capture key, Checking key
Genre: n#
FEN: 8/N4B2/2prp3/RP1k4/5P2/b1BK4/8/8
Input: Mario Richter, 2020-10-23
Last update: Alfred Pfeiffer, 2020-10-23 more...
14 - P1381381
Joseph Retter
1753 Rochade Europa 06/1998
P1381381
(11+9) C+
#3
* 1. ... Lb1xf5 2. Se1-f3+ Tf1xf3 3. Dh1-a1#
* 1. ... Tf1xf5 2. Se1-d3+ Lb1xd3 3. Dh1-a1#

1. Dh1xh7! droht 2. Dh7xf7 droht 3. Df7xe6#, 3. Df7-c7#
2. ... Lb1xf5 3. Df7-c7#
2. ... Tf1xf5 3. Df7-c7#
2. ... e6xf5 3. Df7-d5#, 3. Df7-e7#
1. ... Lb1xf5 2. Se1-d3+ Lf5xd3 3. Sf6-d7#
1. ... Tf1xf5 2. Se1-f3+ Tf5xf3 3. Sf6-d7#
play all play one stop play next play all
Iwan Soroka: Satz:
1. ... Lb1xf5 2. Se1-f3+ Tf1xf3 3. Dh1-a1#
1. ... Tf1xf5 2. Se1-d3+ Lb1xd3 3. Dh1-a1#

K: Reciprocal wechsel (2020-10-30)
comment
Keywords: Capture key
Genre: 3#
Computer test: Popeye 4.83
FEN: 4K3/5p1p/4pN2/1pP1kPP1/2P3P1/4P1p1/4p1P1/1b2Nr1Q
Input: Marcin Banaszek, 2020-10-30
Last update: Alfred Pfeiffer, 2020-10-30 more...
15 - P1381430
Bela Majoros
v Probleemblad 2017
1. Preis
P1381430
(6+15) C+
h#3
0.1.1...
b) sSe5->f5
a) 1. ... Kd2-e1 2. Tc6xe6 Lf2xd4 3. Tg2-d2 Tc3-f3#
b) 1. ... Kd2xc2 2. Ld7xe6 Tc3-f3 3. La5-d2 Lf2xd4#
play all play one stop play next play all
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comment
Keywords: Capture key
Genre: h#
Computer test: Popeye 4.83
FEN: 7N/3bp3/1pr1Pk1P/b3n1p1/2pp4/2R3p1/1ppK1Brq/8
Reprints: Csak-Majoros-Pasztor 2020
Input: Marcin Banaszek, 2020-10-31
Last update: Alfred Pfeiffer, 2020-11-03 more...
16 - P1381880
Nikolay A. Zharkov
Probleemblad 1993
1. Preis h#
151. Thematurnier
P1381880
(5+4) C+
h#2
Bosma
b) wBd4->e3
c) ferner wBd3->e4
a) 1. Dc5 d5 2. e1=T Kg1#
b) 1. Dxd3 e4 2. e1=L Kg3#
c) 1. Dd5 e5 2. e1=S Kg2#
play all play one stop play next play all
Preisrichter: "In a very subtle way three minor promotions emerge which appeal to me very much. Personally, I have a soft spot for problems like this."
A.Buchanan: Are Nikolai Sharkow & Nikolai A. Sharkow the same person? The areas of interest seem sufficiently distinct that I didn't want to merge PDB composer IDs without confirmation. (2020-11-14)
Henrik Juel: I expect that NS and NAS are identical, but who knows?
What are the solutions?
I see a Bosma mate with Df5 on, say, c2, e1=S, and Kh2 on g2, but I cannot get there (2020-11-14)
A.Buchanan: Really rather nice twinning. WinChloe thinks these are the same guy, so I'll go with that. (2020-11-14)
Henrik Juel: Certainly a worthy prize winner (2020-11-14)
comment
Keywords: Bosma, under-promotion (t,l,s), Capture key
Genre: h#, Fairies
Computer test: C+ WinChloe 3.51
FEN: 4N1rk/8/8/5q2/3P4/3P4/4p2K/7R
Input: A.Buchanan, 2020-11-14
Last update: A.Buchanan, 2020-11-18 more...
17 - P1381900
Vitaly Medintsev
7276 Phénix 252 07-08/2015
P1381900
(8+8) C+
h#2
b) -wBb4
a) 1. Dg7xf6 Th6xg6 2. Df6xb2 La6-c4#
b) 1. Tg6xf6 Lh8xg7 2. Tf6xa6 Tb2-b5#
play all play one stop play next play all
more ...
comment
Keywords: Capture key
Genre: h#
Computer test: Popeye 4.83
FEN: 1K5B/4rpqp/B4PrR/3k1pp1/1P6/3P4/1R6/8
Input: Marcin Banaszek, 2020-11-14
Last update: Alfred Pfeiffer, 2020-11-16 more...
18 - P1381962
James Malcom
www.chess.com 15/11/2020
"X Marks The Spot"
P1381962
(11+11) C+
#2
1. Dxc4!
1. ... Kxe5 2. Dxd5#
1. ... Tdxe5 2. Sxd6#
1. ... Texe5 2. Txf4#
1. ... Lxe5 2. Dxe4#
1. ... dxe5 2. Txf6#
1. ... fxe5 2. Tg5#
play all play one stop play next play all
https://www.chess.com/forum/view/more-puzzles/x-marks-the-spot-mate-in-2?page=1
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comment
Keywords: x pieces capture on one square (6), x pieces move to one square (6), x pieces defend on one square (6), Capture key
Genre: 2#
Computer test: popeye 4.85
FEN: B7/5K2/R2p1p2/1NprPk2/Q1pbrpR1/2p1pP1N/2P1P3/8
Input: James Malcom, 2020-11-16
Last update: Alfred Pfeiffer, 2020-11-17 more...
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The problems of this query have been registered by the following contributors:

Felber, Volker (4)
Frank Müller (1)
James Malcom (5)
A.Buchanan (2)
Marcin Banaszek (5)
Mario Richter (1)