9 problem(s) found in 1676 milliseconds (displaying 9 problem(s)). [COMMENTDATE>=20200919 AND S='Schweizerische Schachzeitung' AND K='Unterverwandlung im Mattzug'] [download as LaTeX]

1 - P1055292
Josef Mettler
Schweizerische Schachzeitung 1969

(8+7) C+
#2

1. Da6! droht 2. Dc4#
1. ... S8xe7 2. g8=S#
1. ... Sf8 2. gxf8=S#
1. ... Sh8 2. gxh8=S#

1. ... S6xe7 2. Sxe5#
1. ... Sf6 2. g8=D#

Henrik Juel: C+ Popeye 4.61 (except for the promotion mate dual 1... Sf6 2.g8=DL) (2023-10-18, hidden) more ...
comment

Keywords: Brian Stephenson Collection (40343), discovered checkmate, double-check mate, under-promotion in mating move (S, dreifach), Promotion in the mating move (D)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: R5n1/2p1BkPR/2N3n1/4p3/5p1p/QK5B/8/8
Reprints: 37 Kunstschach in der Schweiz , p. 29, 1980
1922 Scobs lignea 14/12/2016
1607a Augsburger Allgemeine 14/12/2019
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-10-18 more...

2 - P1141887
Emil Palkoska
1324 Sachove Listy 06/1902

(4+2) C+
#3

1. Kc4! Ka7 2. Dc7 Ka6 3. b8=S#

BUS12 CH-L
Sally: In der Anfangsstellung würde nach 1. - Ka7 Weiß mit 2. Dc7
pattsetzen, um dies zu vermeiden, verstellt der wK - ein Kraftopfer - vorsorglich unter Übernahme der Deckung von b5
den das Feld a6 deckenden wL. (2018-12-25, hidden)
SCHRECKE: C+, popeye 4.87 (2023-01-07, hidden) more ...
comment

Keywords: Miniature Collection (0050013), under-promotion in mating move (S), Miniature, Minimal, Preplan, Cheney-Loyd
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 1k6/1P3Q2/8/8/3K4/4p3/4B3/8
Reprints: 167 Schweizerische Schachzeitung , p. 151, 09/1902
143 Schachminiaturen - Neue Folge 1903
10 John Bull 11/06/1903
533 777 Chess Miniatures in Three 1908
3 Rheinische Volkswacht 10/07/1920
82 Das Schachproblem , p. 34, 1981
Input: Felber, Volker, 2010-09-11
Last update: Mario Richter, 2023-03-13 more...

3 - P1151303
F. Morel
Curieux 1943

(5+2) C+
#2

1. Sh8! (Zugzwang)
1. ... Kxh8,Sf6,Sg5 2. f8=D#
1. ... Sf8 2. e8=S#

FE-S2D2 BUS10 mm
SCHRECKE: C+, popeye 4.85
1.Sh8! (Zugzwang)
1. ... K:h8,Sf6,Sg5 2.f8D#
1. ... Sf8 2.e8S# (2020-10-15, hidden) more ...
comment

Keywords: Miniature Collection (0310164), Promotion in the mating move, under-promotion in mating move
Genre: 2#
Computer test: popeye 4.85
FEN: 8/4PPkn/6N1/4K3/8/7R/8/8
Reprints: 6637 Schweizerische Schachzeitung 02/1944
Input: Zuncke/Bruder, 2010-09-12
Last update: Alfred Pfeiffer, 2020-10-15 more...

4 - P1279505
Emile Leonard Pradignat
Literary Digest 1903
1. Preis
Turnier des Digest 1903

(9+13)
#3

1. d3! exd3 2. Sd4
1. ... Lxd3 2. Sc4
1. ... c2 2. dxe4+
1. ... Sf6 2. Dxb5+
1. ... Ta8 2. Sc8

Henrik Juel: triple threat 1.d3 thr. 2.Sxb5,Sc4,Sc8 and some duals (2022-07-07)
comment

Keywords: Sacrifice key, under-promotion in mating move (wS)
Genre: 3#
FEN: 4Q3/rp3P1n/1p1N4/1p1k1N2/pP2pPp1/P1p5/3P1n2/Kb2b3
Reprints: 266 Schweizerische Schachzeitung , p. 134, 07/1903
163 Favorit-Schachaufgaben , p. 41, nach 1910
Input: Felber, Volker, 2013-10-26
Last update: Dieter Berlin, 2022-07-06 more...

5 - P1396025
Marian Wrobel
Schweizerische Schachzeitung 06/1952

(6+9)
#3

1. Df5! droht 2. h8=D Tg8 3. fxg8=S#
1. ... Sd6 2. d8=D+ Se8 3. fxe8=S#

Henrik Juel: C+ Popeye 4.61, except for the mate dual 1... Sd6 2.d8=D+ Kg7 3.f8,h8=D# (2021-11-20)
comment

Keywords: under-promotion in mating move (Echo)
Genre: 3#
FEN: 5k2/1n1P1P1P/8/2rQ4/KB6/5prp/4p1qb/8
Reprints: 26 Die Schwalbe 257/258, p. 340, 01-02/1955
Input: Dieter Berlin, 2021-11-20
Last update: Dieter Berlin, 2021-11-20 more...

6 - P1407646
Hans Ott
1952 Schweizerische Schachzeitung 07/1962
1. Preis

(7+11) C+
#5

1. Th7? La4!

1. Te4! droht 2. Sa6+
1. ... Te5 2. Sa6+ Kc6 3. Tc4+ Txc4 4. dxc4 ... b8=S#
1. ... Lxd3 2. Te7 Lb5 3. Te8 Txg5 4. Sa7 d5 5. Sxb5#

Henrik Juel: C+ Popeye 4.61 (2023-02-08, hidden) more ...
comment

Keywords: Schlagrömer, Grimshaw (TB), under-promotion in mating move (S), Sacrifice of white pieces (T, L)
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: KNN5/1Pkp4/1p1p4/b1r3B1/7R/2rPp3/2b1n3/2q5
Reprints: 1613 Beispiele zur Ideengeschichte des Schachproblems , p. 326, 1982
Input: Dieter Berlin, 2023-02-08
Last update: Dieter Berlin, 2023-02-08 more...

7 - P1408403
Ilse Müggler-Fröhlich
11384 Schweizerische Schachzeitung 02/1978

(5+2) C+
#2

1. d8=S! ... 2. e8=S#

Henrik Juel: C+ Popeye 4.61 (2023-03-21, hidden) more ...
comment

Keywords: konsekutive Umwandlungen 2 (SS), under-promotion key (S), Minimal (b), Miniature, under-promotion in mating move (S)
Computer test: Juel: Popeye 4.61
FEN: 8/3PP3/1NNk4/1K6/5n2/8/8/8
Input: Rainer Staudte, 2023-03-20
Last update: Dieter Berlin, 2023-10-29 more...

8 - P1413063
Peter Jaeger
Schweizerische Schachzeitung 1986
H. Henneberger gewidmet
zum 70. Geburtstag

(7+10) C+
#5

1. Sxg4? Sac6 2. Sgxh6 Sxe5!

1. Sg2! droht 2. Sf4#
1. ... Se2 2. Sh4 Sd4 3. Sg6 Se2 4. Sd8+ Lxd8 5. cxd8=S#

SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-10-21, hidden) more ...
comment

Keywords: under-promotion in mating move (S)
Genre: n#
Computer test: SCHRECKE: Gustav 4.2e
FEN: 4K3/npP1bN2/4kP1p/3pP3/3n2p1/3BN1p1/3p4/8
Reprints: 259 Schweizer Schachkompositionen 1976-1986 , p. 95, 1989
Input: Dieter Berlin, 2023-10-21
Last update: Dieter Berlin, 2023-10-21 more...

9 - P1413453
Josef Mettler
Schweizerische Schachzeitung 1982
Informalturnier 1982
1. ehrende Erwähnung

(12+8)
#3

1. c6! Ld7 2. cxd7 Se8+ 3. dxe8=S# 2. ... Sa8 3. e8=S#
1. ... Lxf7 2. gxf7 Se8+ 3. fxe8=S# 2. ... Se6 3. e8=S#
1. ... Lxc6 2. Kxc7
1. ... Sa8 2. Sd5+ Kf5 3. e4# 1. ... Sa3 2. Tf4+ 1. ... e4 2. Tf4#

Henrik Juel: dual 1... Sc3 2.Tf4+,Lxc3 (2023-11-10)
comment

Keywords: Zugzwang-Goal, Pawn mate, Line opening, under-promotion in mating move (S, mehrfach)
Genre: 3#
FEN: 4b3/2n1PNp1/R2K1kPp/1pP1p2B/1B4R1/4N3/4PP2/1n6
Reprints: 185 Schweizer Schachkompositionen 1976-1986 , p. 69, 1989
Input: Dieter Berlin, 2023-11-10
Last update: Dieter Berlin, 2023-11-10 more...

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