Die Schwalbe

4 problem(s) found in 3531 milliseconds (displaying 4 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Illegale Stellung']

1 - P1305230
Thierry Le Gleuher
1 RIFACE 2015
P1305230
(11+1)
Ajouter des pièces.
+wSb2d2 +wLc4
R: 1. Dd1-c2+ Kc2-c3 etc
play all play one stop play next play all
A.Buchanan: How about wLa1 instead? (2020-10-06)
Henrik Juel: Yes, that would improve the economy slightly (2020-10-06)
Ladislav Packa: wBa1 is illegal... (2020-10-07)
A.Buchanan: Hi Ladislav why is wLa1 illegal, please? That was essentially my question before (2020-10-07)
Mario Richter: wLa1 instead of wDa1 is of course legal too: one of the dark-squared wBishops unpromotes on h8, one wQueen on g8. Black pawns g7+h7 let the wPawns g2+h2 pass by cross-capturing the 2 original wRooks. (2020-10-07)
more ...
comment
Keywords: Add pieces, Illegal position
Genre: Retro
FEN: 8/P7/P7/P1Q5/P3K3/P1k5/P1Q5/Q3B3
Input: A.Buchanan, 2015-07-08
Last update: A.Buchanan, 2020-10-07 more...
2 - P1315337
Jozsef Pogats
11591 Schach-Echo , p. 40, 01/1991
P1315337
(10+9) C+
h#25
0.1...
1. ... h4 2. Lg1 Kxg1 3. Kf7 Kh1 4. Ke8 Kg1 5. Kd8 Kh1 6. Kc8 Kg1 7. Kb8 Kh1 8. Ka7 Kg1 9. Ka6 Kh1 10. Ka5 Kg1 11. Kb4 Kh1 12. Kxc4 Kg1 13. Kxc5 Kh1 14. Kxc6 Kg1 15. Kd7 Kh1 16. c5 Kg1 17. c4 Kh1 18. c3 Kg1 19. c2 Kh1 20. c1=S Kg1 21. Sxe2+ Kh1 22. Sf4 Lc4 23. Sg6 hxg6 24. Ke8 gxh7 25. Kf8 h8=D#
play all play one stop play next play all
SE schreibt in der LB:

'Die Stellung ist illegal, da die schwarzen Bauernschlagfälle mit den fehlenden weißen Steinen nicht übereinstimmen, vor allem wegen des weißen h-Turmes. Zur Herstellung der Legalität muß man wohl auf den ersten Halbzug verzichten und (mit wBh4) auf ein h#24 zurückstecken?'.

ferner

'Vom Autor liegt noch eine ähnliche, allerdings um zwei Züge kürzere Aufgabe vor...' (=P1315338)
Henrik Juel: The position is illegal
because Black would need six pawn captures to reach his pawn position, but [Th1] was captured in its corner by a black officer, leaving only five white men for capture by black pawns
So (wBh5) in Keywords makes little sense (2016-01-12)
James Malcom: Why was this labeled as cooked? An illegal position does not automatically make a problem incorrect. I've changed it to C+. (2020-11-11)
A.Buchanan: Yes James only for a retro might I mark an illegal problem as “cooked”. Even then that’s not really the right term. But here simply fix by pushing wBh3c4 to h4c3. The initial White move is still forced, so no change to soundness but the position is legal. (2020-11-12)
more ...
comment
Keywords: Illegal position
Genre: h#
Computer test: O. Jenkner: Gustav 4.1 d
FEN: 8/2p1p2p/2P1k2p/2P1p2P/2P1P3/4p1pP/4P1Pb/5B1K
Input: Felber, Volker, 2016-01-12
Last update: Olaf Jenkner, 2020-11-12 more...
3 - P1360528
Petre Stojoski
The Macedonian Problemist 57a 09-12/2018
Zoran Gavrilovski 50 JT Abt. H#>2
1. ehrende Erwähnung
PR Hans Gruber
P1360528
(2+13) C+
h#5
1. Se5-c4+ Kb2-c1 2. Kd6-e7 La1xd4 3. Lh2-c7 Ld4-g7 4. Sc4-e5+ Kc1-b2 5. Ke7-d6 Lg7-f8#
play all play one stop play next play all
Stefan Felber: Illegale Bauernstellung! (2019-02-02)
Viktoras Paliulionis: Possible correction: bBd7.
Also, the BQ can be replaced with a BR. (2020-10-08)
comment
Keywords: Illegal position, Checking key, Minimal, Model mate, Klasinc theme (K-L, s-L, s-l, k-l), Switchback (Kks), Selfblock, Line closing, Line closing, Bivalve
Genre: h#
Computer test: Popeye 4.67
FEN: 8/3p4/2qkp3/3pn3/pp1p4/1p1r4/pK5b/B7
Input: Marcin Banaszek, 2019-02-02
Last update: Gunter Jordan, 2019-05-16 more...
4 - P1380065
Hermann Weissauer
C Die Schwalbe 35, p. 382, 10/1975
P1380065
(8+13) C+
#3
1. Tf8-f5! droht 2. Sc5-a4+,S~+ Kb5xa4 3. Te5xa5#
1. ... Lh4-e1 2. Te5-e4 droht 3. Ld3xc4#
2. ... a5-a4 3. Sc5-e6#
play all play one stop play next play all
innerhalb eines Artikels "Batteriewechsel - ein interessantes Thema?" (II. Teil) von H. Weissauer
Stefan Felber: Stellung illegal! (2020-09-20)
comment
Keywords: Illegal position (8 sBB+UW-Lh4)
Genre: 3#
Computer test: Popeye 4.83
FEN: 5R2/1K2p1p1/6P1/pkN1R1Pq/2r2ppb/Bp1Bp3/1p6/6r1
Reprints: Rochade Europa , p. 41, 10/1995
Input: Marcin Banaszek, 2020-09-19
Last update: Mario Richter, 2020-09-20 more...
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The problems of this query have been registered by the following contributors:

A.Buchanan (1)
Felber, Volker (1)
Marcin Banaszek (2)