Die Schwalbe

3 problem(s) found in 8768 milliseconds (displaying 3 problem(s)). [COMMENTDATE>=20200919 AND NOT S='Schach' AND A='Saunders, Denis M.'] [download as LaTeX]

1 - P0008872
Denis M. Saunders
C9206 The Problemist 03/1998
P0008872
(12+14) C+
#2?
b) -sBe7
a) 1. 0-0-0? illegal
1. Td1! droht 2. Dc4#
1. ... Se3 2. Dxe3#
1. ... Se5 2. Dxe5#
1. ... cxb5 2. Txb5#
1. ... Tf4 2. Dxe7#
1. ... Dxc2 2. Txc2#
1. ... Dd3 2. Sxd3#
1. ... De4+ 2. Sxe4#
b) 1. Td1? Te8! pinning
1. ... Te7? 2. Dxe7#
1. 0-0-0! then all variations as in a)
play all play one stop play next play all
(a) sLa7 is promoted. If White castling rights remain, then bPf captured fxgxh2xg1=L, which with dxc6 makes 4 captures. White has lost Bd, Be, Bf/h & Lc. However, wBe can't have captured or promoted (h/fxg & Lf at home are the only Black casualties), so can't have contributed to Black captures. Therefore impossible, and wK did lose castling rights before. Now trivial for sBf to have promoted.
(b) sLa7 can be original, so castling is still ok. Even if sLa7 is promoted, wBe can have promoted, and again White can still castle.
The forward play is more varied than is usual in these kinds of problems.
Kees: a) 1.Td1! [2.Dc4‡]


b) 1.0-0-0! [2.Dc4‡]

La7 is promoted.
In a) fxg/e=L King must move (e2 cannot promote) so no 0-0-0.
In b) fxgxhxg=L and 1. 0-0-0 for 1. Td1? Te8! (2022-02-02)
more ...
comment
Keywords: Castling, Castling key, Twin
Genre: Retro
Computer test: HC+ Popeye 4.61 and analysis
FEN: b6r/b1p1prpq/1pp1Q2p/1Pk5/p5n1/P4NP1/1RP2NP1/R3KB2
Input: Gerd Wilts, 1998-06-26
Last update: A.Buchanan, 2022-02-03 more...
2 - P1038125
Denis M. Saunders
Juan Kloostra

C7426 The Problemist 09/1987
P1038125
(13+6) C+
#4
1. Tf7! Tf4, T~ 2. La2+ Kxc2 3. Txf4, ~xT Kd3 4. 0-0-0#
1. ... Tg5 2. Lxg5 h4 3. Txf3 h3, exf3 4. Se2#, e4#
play all play one stop play next play all
BS Problemid: 23075
Authors: Saunders, Denis M
Kloostra, Juan
Sources: The Wizard of Oz 1999
Years: 1987
Im 'Problemist' ist der zweite Autor als "Jan Kloostra" angegeben
more ...
comment
Keywords: Brian Stephenson Collection (23075), Belen Theme
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/7R/1P6/2P2r1p/N2Pp2B/2p1Pp2/2P2P2/RBk1K1N1
Input: Brian Stephenson, 2004-08-12
Last update: Mario Richter, 2020-09-23 more...
3 - P1151675
Denis M. Saunders
7430 The Problemist 09/1987
P1151675
(4+3) C+
#2
1. Da2! droht 2. De2#
1. ... Sc2 2. Db3#
1. ... gxf3 2. Dd2#
1. ... Kxf3 2. Df2#
play all play one stop play next play all
B29DD
more ...
comment
Keywords: Miniature Collection (0241691), Miniature, Flight giving sacrifice key (L), Blocknutzung
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/5Q2/8/4K3/4N1p1/4kB2/8/n7
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-03-08 more...
Show statistic for complete result. Show search result faster by using ids.

https://pdb.dieschwalbe.de/search.jsp?expression=COMMENTDATE%3E%3D20200919+AND+NOT+S%3D%27Schach%27+AND+A%3D%27Saunders%2C+Denis+M.%27

The problems of this query have been registered by the following contributors:

Gerd Wilts (1)
Brian Stephenson (1)
Felber, Volker (1)