Die Schwalbe

92 problem(s) found in 3347 milliseconds (displaying 92 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT A='Arestow, Pawel M.' AND K='Forsberg-Zwilling'] [download as LaTeX]

1 - P0501066
Henry Olof Axel Forsberg
599-603 Revista Romana de Sah 01/1935
1. Preis
Pauly Gedenkturnier 1935
P0501066
(3+2) C+
h#2
b) sTa6 statt sDa6
c) sLa6 statt sDa6
d) sSa6 statt sDa6
e) sBa6 statt sDa6
a) 1. Df6 Sc5 2. Db2 Ta4#
b) 1. Tb6 Tb1 2. Tb3 Ta1#
c) 1. Lc4 Se1 2. La2 Sc2#
d) 1. Sc5 Sc1 2. Sa4 Tb3#
e) 1. a5 Tb3+ 2. Ka4 Sc5#
play all play one stop play next play all
Das namensgebende [Stamm-]Problem für dieses Thema (=Forsberg-Zwilling).
Erich Bartel: weitere Nachdrucke:
13) 197 moving on 2008.---
14) Naef:Endspielstudien Hilfmattprobleme und Märchenschachaufgaben 1998,S.72.--- (2008-10-01)
Jacques Rotenberg: 5982, CHM 1995, G. Lestriguel
p.1315, Le Guide des Echecs 1993
5 p.8, The Modern Helpmate in Two, Z. Janevski & N. Stolev 1989
XIII p.151, Thèmes-64 10 (avr. 58)
XII bis p.38, Rex Multiplex 2 (avr. 82)
285, Svenska Miniatyrer I, A.Uddgren & A. Hildebrand 1996
p.76, Im Wunderland des Schachproblems, E. Ramin 1958
E-1 p.236, StrateGems 12 (oct. 00)
I33 p.1333, Phénix 14 (sept. 91)
3 p.219, Le Genre Aidé Supplément diagrammes 15 (juin 75)
161 p.241, Echecs, N. Ramini 1985
E p.14, Best Problems 21 (jan. 02)
259 p.238, Chess Problems : Introduction to an Art, M. Lipton, R.C.O. Matthews, J. Rice 1963
139, Skakopgaven 1942
135 p.31, Album FIDE 1914-44/III
9 p.403, feenschach 26 (déc. 74)
40 p.61, Europe Echecs 330 (juin 86)
p.185, feenschach 47 (juil. 79)
in WinChloe, you find also :
A p.5, Springaren 17 (mars 84)
p.50, feenschach 73 (jan. 85)
M p.171, The Problemist (sept. 81)
p.415, feenschach 97 (nov. 90)
133 p.104, Solving in Style, J. Nunn 1985
E-I p.43, Probleemblad 58/1 (jan. 00)
E-1 p.102, Probleemblad 58/3 (mai 00)
p.136, Springaren 70 (août 97)
4 p.4424, diagrammes 159 (oct. 06)
p.37, Problem-Forum 36 (déc. 08) (2012-03-10)
A.Buchanan: The position is unique (except for left-right reflection). In particular, it cannot be shifted up or down without breaking (b) and only the current location of wK makes (b) sound and (a)&(d) solvable. (2017-01-27)
Anton Baumann: in Revista de Sah 1936 soll Henry Forsberg eine weitere Möglichkeit gezeigt haben:
f) wSa6 statt sDa6: 1.Ka2 Sac5 2.Ka3 Ta4# (C+)
Ferner mit Märchenschachfiguren: vergl. P1349128 (2022-12-28)
more ...
comment
Keywords: Forsberg Twins, Aristocrat, Model mate
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
FEN: 8/8/q7/8/1R4K1/k2N4/8/8
Reprints: 6 The Chess Review , p. 25, 12/1945
141 Zwillinge und Mehrlinge 1952
Schach-Echo Vol.11, p. 151, 1953
5 The Problemist 01/1962
761 Szachy 06/1965
Problemschach [Sidler] , p. 140, 1968
Problem 127-132, p. 95, 09/1969
9) feenschach 26, p. 403, 12/1974
135 FIDE Album 1914-1944/III 1975
83 Schach ohne Partner [Grasemann] 1977
feenschach 47, p. 185, 07-09/1979
XII Rex Multiplex 2, p. 38, 04-06/1982
67 100 Classics of the Chessboard 1983
Belfort , p. 75, 1994
Tim Krabbé's Website (57) 2000
E-I Probleemblad 01-02/2000
harmonie 63 09/2000
König & Turm 4, p. 13, 03/2001
986 Minimalkunst im Schach 2006
Problemkiste 163 02/2006
633 Encyclopedia of Chess Problems 2012
Input: Gerd Wilts, 1996-06-06
Last update: Dieter Berlin, 2022-02-09 more...
2 - P0501243
Vladislav Bunka
2794 Sachova skladba 10/1991
P0501243
(2+13) C+
h#1
b) wTh2 statt wDh2: h#2
c) wSh2 statt wDh2: h#3
d) wLh2 statt wDh2: h#4
e) wBh2 statt wDh2: h#5
a) 1. Te2 Dg1#
b) 1. Te2 Tg2 2. Sf2 Tg1#
c) 1. Kd1 Sf3 2. Kc1 Se1 3. Ld1 Sd3#
d) 1. Ke2 Lf4 2. Kd3 Lxg5 3. Kc3 Lxf6 4. d3 Lxe5#
e) 1. Kf2 h4 2. Kg3 h5 3. Kh4 h6 4. Kh5 h7 5. Kh6 h8=D#
play all play one stop play next play all
Task
A.Buchanan: Now *this* is a minimal. (2021-07-22)
more ...
comment
Keywords: Forsberg Twins, Excelsior (s), Promotion in the mating move, Minimal (D,T,L,S,B)
Genre: h#
Computer test: C+ Gustav 4.1d
FEN: 8/8/5pp1/1K2p1q1/3p2b1/1p6/2rp2rQ/1n2k2n
Input: Gerd Wilts, 1996-06-06
Last update: A.Buchanan, 2021-07-22 more...
3 - P0501246
Vladislav Bunka
Vaclav Kotesovec

6326 feenschach 104 10/1992
P0501246
(2+11)
h#3
b) wLg7 statt wTg7
c) wSg7 statt wTg7
a) 1. Tg5 Tf7 2. e5 Ke7 3. Kf5 Txf6#
b) 1. Th5 Kxe7 2. Kg5 Ke6 3. Lf4 Lxf6#
c) 1. Kg5 Se8 2. Kh5 Kxe7 3. Tg5 Sxf6#
play all play one stop play next play all
There was an error in position, corrected.
Henrik Juel: C+ Popeye 4.61 also (2023-04-14)
more ...
comment
Keywords: Forsberg Twins, Minimal
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
FEN: 1b1K4/4p1R1/1n3pbq/2r5/4pkpn/8/8/8
Input: Gerd Wilts, 1996-06-06
Last update: Vaclav Kotesovec, 2023-04-14 more...
4 - P1008280
Peter Wong
9854 Die Schwalbe 168 12/1997
8. Lob
P1008280
(2+10) C+
h#2
b) sLb1 statt sSb1
Circe
a) 1. La3 Txa3[+sLf8] 2. Sxa3[+wTa1] Txd1[+sDd8]#
b) 1. Dxb3[+wTh1] Th7 2. Lxh7[+wTh1] Txg1#
play all play one stop play next play all
"Interessantes Circe-Geschehen, thematisch aber schwer einzuordnen. Als Minimal aber sehr gefällig." (eb)
"Eine erfrischende Circe-Aufgabe" (HMo).
Der Autor merkt zu dem Stück an: "It shows a Circe-specific tempo idea, executed by both Black and White. Under Circe, a unit on its home square can make an 'absolutely pure' tempo move if it is then captured and reborn"
"very pretty" (LV).
HJä: "1.- Th7 und 1.La3 sind wirklich geistreiche Circe-Wartezüge. Sehr schönes Minimal."
16+3.5/5P
A.Buchanan: This is really wonderful. and I wonder if its thematic originality and apparent simplicity maybe denied it a higher prize. Note how three Black units, which all have other day jobs, block wK from executing the White waiting move. On the other hand bRg1 can’t do the black waiting move, again for check reasons (2021-06-24)
A.Buchanan: And why have the bRg1 anyway? Well, it prevents a large number of cooks in a, because otherwise wRd1 can't be captured as it will respawn on h1. On the other hand it prevents premature check in b, and the respawn on a1 *is* an issue. Harmonious asymmetry, in both cases requiring that b1 & d1 be cleared, and that all the pieces have multiple roles. (2021-06-24)
A.Buchanan: Where a theme appears both for white and black also can be more challenging than where the theme is echoed by the same player in the twin. The position needs to be fundamentally reperceived in such a twin, and to achieve great economy is even more laudable, imho. (2021-06-25)
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comment
Keywords: Circe, Forsberg Twins, Minimal, Tempo Loss
Genre: Fairies, h#
Computer test: a)+b): C+, popeye 4.85
FEN: 5b1K/8/8/8/8/1R6/1p1pnpp1/1n1q1kr1
Reprints: (125) Parallel Strategy 2004
Input: Gerd Wilts, 2003-06-29
Last update: A.Buchanan, 2021-06-24 more...
5 - P1008810
Franz Pachl
10723 Die Schwalbe 182 04/2000
P1008810
(9+9)
h#2
b) wDUf1 statt wSUf1
c) wLf1 statt wSUf1
wDU,sDU=Grashüpfer
wSU=Nachtreiter
a) 1. Lxe6 Ng3 2. Lc8 Lb6#
b) 1. Sxc5 Ga1 2. Sa6 Nb6#
c) 1. Txa4 Lh3 2. Txa7 Tb6#
play all play one stop play next play all
MR, der übrigens mit 4/II-III wertete, beschreibt das dargestellte Thema: jedem der vier wThemasteine ist ein Nachbarfeld des sK zugeordnet, welches er ganz allein deckt. In jeder Phase wird jeweils eines dieser Felder durch einen sStein geblockt, der unterwegs zufällig jene Themafigur schlägt, deren Deckungsaufgabe der in Forsberg-Manier sein Kleid wechselnde Stein auf f1 übernimmt. Der Superschnittpunkt T/L/N/(G) ist mir bereits aus einem feenschach-Serienzüger von P.A. Petkov bekannt, der mit einem ähnlich komplexen Zyklus einen Preis errang. Ich wüßte keinen Grund, warum es diesem reichhaltigen Hilfsmatt anders ergehen sollte.
EB: Die vom Autor gewohnten Linienöffnungen mit Matt- und Opferwechsel, hier mit Märchenfiguren garniert.
SCHRECKE: C+, popeye 4.85 (2020-07-24)
Anton Baumann: Informalturnier 2000: 2. Preis (PR: Jörg Kuhlmann) (2023-09-26)
comment
Keywords: Forsberg Twins, Capture key
Pieces: du = Grasshopper (G), su = Nightrider (N)
Genre: Fairies
FEN: n4Kb1/Pkq5/4Rb2/1*2QBP4/*2N1r2r2/1n6/4P3/1*2q3*2N2
Reprints: 7) Rochade Europa , p. 51, 04/2001
Input: Gerd Wilts, 2003-07-01
Last update: Alfred Pfeiffer, 2020-07-23 more...
6 - P1008884
Achim Schöneberg
10855 Die Schwalbe 184 08/2000
P1008884
(4+9) C+
h#2
b) sDd4 = sSd4
Beamtenschach
a) 1. f2 Sf3+ 2. e3 Txe3#
b) 1. e3 Txe3 2. f2 Sf3#
play all play one stop play next play all
(A. Schöneberg). Vertauschte s/w Zugpaare (JB). EB: Totaler Tausch der Zugfolge mit rein äußerlich identischem Matt, durch die "Beobachtungsweise" jedoch verschieden. Nicht leicht durchschaubar! Der komplette Tausch der beiden Zugpaare wird hier märchentypisch gut begründet (AB)! MW: Verwendet sehr schöne typische Eigenheiten des Beamtenschachs! Gefällt mir gut! Phantastisch, was AS aus der scheinbar spröden Stellung und der scheinbar langweiligen Bedingung macht (WW). HJ: Reziproker Wechsel der s/w Zugpaare - einfach aber gut!
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comment
Keywords: Functionary Chess, Forsberg Twins
Genre: Fairies, h#
Computer test: Popeye 4.61
FEN: 8/4K3/4p3/2bpkb2/3qpn2/5pN1/4R3/4N3
Input: Gerd Wilts, 2003-07-01
Last update: Arnold Beine, 2022-12-12 more...
7 - P1014777
Stepan P. Cirulik
2019 Westnik Problemista 31/12/1991
Preis
P1014777
(3+4) C+
s#2
b) wL e6 nach wS e6
a) 1. La2! b3 2. Da5 bxa2#
b) 1. Sd4! b3 2. Sc2+ bxc2#
play all play one stop play next play all
Echomattwendung.
1135
SCHRECKE: a)+b): C+, popeye 4.89 (2023-10-23)
comment
Keywords: Forsberg Twins, Miniature
Genre: s#
FEN: Q7/8/4B3/8/bp6/k7/1p6/1K6
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2023-10-23 more...
8 - P1014779
Valery Surkov
3696 Problemist Pribuzhya 25/12/1993
Lob
Turnier des Schachklubs Mykolajiw
P1014779
(4+3) C+
s#2
b) wSf4
a) 1. Lh6+! Txh6 2. Df7+ Sxf7#
b) 1. Sg6+! Txg6 2. Dg8+ Txg8#
play all play one stop play next play all
1132
SCHRECKE: a)+b): C+, popeye 4.89 (2023-10-23)
comment
Keywords: Forsberg Twins, Aristocrat, Miniature
Genre: s#
FEN: 5k1K/7R/3nQr2/8/5B2/8/8/8
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Rainer Staudte, 2023-10-28 more...
9 - P1014780
Valery Surkov
3714 Problemist Pribuzhya 25/12/1993
1. ehrende Erwähnung
Turnier des Schachklubs Mykolajiw
P1014780
(3+4) C+
s#2
b) wLc6
c) wTc6
a) 1. Sd8? Sg6!
1. Se7? Sf7!
1. Se5! Sg6 2. Sxg6 b2#
1. ... Sf7 2. Sxf7 b2#

b) 1. Ld5? Sg6!
1. Le4? Sf7!
1. Le8! Sg6 2. Lxg6 b2#
1. ... Sf7 2. Lxf7 b2#

c) 1. Tc7? Sg6!
1. Tf6! Sg6 2. Txg6 b2#
1. ... Sf7 2. Txf7 b2#
play all play one stop play next play all
a) Vgl. Nr. , ref{1111}.
c) Vgl. Nr. , ref{1112}.
1114
SCHRECKE: a),b)+c): C+, popeye 4.89 (2023-10-23)
comment
Keywords: Forsberg Twins, Miniature
Genre: s#
FEN: 7n/8/2N5/8/3R4/kp6/p7/K7
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Rainer Staudte, 2023-10-28 more...
10 - P1014781
Valery Surkov
3718 Problemist Pribuzhya 25/12/1993
2. Lob
Turnier des Schachklubs Mykolajiw
P1014781
(4+3)
s#2
b) wSb2
a) 1. Tb1 L beliebig 2. Db5+ cxb5#
b) 1. Sc4 L beliebig 2. Dxc6+ Lxc6#
Im Original stand "b) wSc4", was aber sicherlich "b) wSb2" heißen sollte.
play all play one stop play next play all
1105
SCHRECKE: a)+b): C+, popeye 4.89 (2023-10-24)
comment
Keywords: Forsberg Twins, Miniature
Genre: s#
FEN: KB6/8/k1p5/2Q5/8/8/1R6/7b
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Rainer Staudte, 2023-10-28 more...
11 - P1014796
Valery Surkov
G9-9 feenschach 01-06/1997
P1014796
(4+2)
s#2
b) wB a2 nach sB a2
a) 1. Db6 Kc2 2. Db2+ axb2#
b) 1. Df2 Kb3 2. Db2+ axb2#
play all play one stop play next play all
1791
SCHRECKE: a)+b): C+, popeye 4.89 (2023-10-10)
comment
Keywords: Forsberg Twins
Genre: s#
FEN: 8/8/5Q2/8/3R4/p1k5/P7/K7
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Olaf Jenkner, 2012-08-26 more...
12 - P1015281
Valery Surkov
Su10 feenschach 06-08/1999
P1015281
(5+2)
s#3
b) wT e5 nach wD e5
a) 1. Tb1 Kd3 2. Td1+ Kc2 3. Sb2 cxb2#
b) 1. De1 Kd3 2. Se5+ Kc2 3. Tb2+ cxb2#
Opfer- und Deckungswechsel zwischen Springer und Turm.
play all play one stop play next play all
2503
SCHRECKE: a)+b): C+, popeye 4.87 (2023-09-27)
comment
Keywords: Forsberg Twins
Genre: s#
FEN: 8/8/8/4R3/1RN5/2p5/B1k5/K7
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Olaf Jenkner, 2012-08-26 more...
13 - P1015412
Valery Surkov
6594 feenschach 01-09/1994
P1015412
(3+4)
s#3
b) wS d6 nach wL d6
a) 1. Se4 Kd1 2. Sf2+ Kc2 3. De1 b2#
b) 1. Lb4 Kd1 2. De1+ Kc2 3. Df1 b2#
Rückkehr des schwarzen Königs.
play all play one stop play next play all
1453
SCHRECKE: a)+b): C+, popeye 4.87 (2023-09-30)
comment
Keywords: Forsberg Twins
Genre: s#
FEN: 8/8/3N4/8/8/1p2Q3/p1k5/Kb6
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Olaf Jenkner, 2012-08-26 more...
14 - P1104376
Johann Hollik
Franz Felber

5571 Schach-Report 10/1990
P1104376
(11+4) cooked
s#6
b) sLe5
a) 1. b4 Kd5? 2. g8=L+ Kd4 3. Dc8 Dxf6#
1. b4 Dxf6 2. Sc6+ Dxc6 3. c3+ Dxc3 4. Dxb6+ Dc5 5. Df6+ De5 6. g8=L Dxf6#
b) 1. Dc3+ Kd5 2. g8=D+ Kd6 3. Dd8+ Ke6 4. Dcc8+ Kf7 5. Le8+ Kf8 6. Lg7+ Lxg7#
play all play one stop play next play all
a) ist die Originalaufgabe von JH, b) wurde von FF gefunden und in der Lösungsbesprechung 03/1991, Seite 42, angefügt.
Cook: b) Dual 4. Dh3+ Lf5 5. Dd7+ Kxf6 6. Df7+ Kxf7#
4. ... Kf7 5. Le8+ Kf8 6. Lg7+ Lxg7#
SCHRECKE: b) hat einen Dual:
4.Dh3+ Lf5 5.Dd7+ K:f6 6.Df7+ K:f7#
4. ... Kf7 5.Le8+ Kf8 6.Lg7+ L:g7# (2021-03-23)
comment
Keywords: Forsberg Twins, Pure Round Trip (d)
Genre: s#
FEN: 1N5K/2Q3P1/1p3B2/1B2q2R/3kb2R/1P6/2PP4/8
Input: Frank Müller, 2010-04-29
Last update: Rainer Staudte, 2023-07-24 more...
15 - P1114985
Leonid Makaronez
Problem Paradise 15 1999
P1114985
(5+1) C+
#4
b) wLa7
a) 1. Sc8 Ka4 2. Ka2 Ka5 3. b4+ Ka4 4. Sb6#;
b) 1. Lb8 Ka4 2. Ka2 Ka5 3. Lc7+ Ka4 4. b3#
play all play one stop play next play all
BsL2 IM FP
vf: siehe auch 3# mit wSc8 statt a7
more ...
comment
Keywords: Miniature Collection (0347446), Forsberg Twins, Miniature
Genre: n#
FEN: 8/N7/8/8/8/Pk1B4/1P6/K7
Input: Zuncke/Bruder, 2010-09-11
Last update: Arnold Beine, 2022-08-07 more...
16 - P1116143
Sergii I. Tkachenko
121 Intellektualnyje Igry 6 1992
Spezialpreis
P1116143
(5+1)
#2
b) wTa6; c) wLa6; d) wSa6
a) 1. a7! (Zugzwang) ... Ka5 2. a8D;
b) 1. Tab6! ... Ka5 2. Ta3;
c) 1. Lc5! ... Ka5 2. Ta3;
d) 1. Sc5+! ... Ka5 2. Le1
play all play one stop play next play all
FP-4
vf: Sergei I. Tkatschenko, 04.1993, Smena (Moskwa), (nur a)?)
Henrik Juel: C+ Popeye 4.61 (2022-08-06)
comment
Keywords: Miniature Collection (0193016), Forsberg Twins
Genre: 2#
FEN: 8/8/P7/P7/k7/1R6/K4B2/8
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
17 - P1117227
Vitaly S. Kovalenko
Problemist dalnego wostoka 1967
3. ehr. Erw.
P1117227
(4+3)
#2
b) sLb8
a) 1. e8=L;
b) 1. e8=S
play all play one stop play next play all
BUS20 BUL24 FP
Henrik Juel: C+ Popeye 4.61 (2022-08-06)
comment
Keywords: Miniature Collection (0311038), Forsberg Twins
Genre: 2#
FEN: kn5R/p3P3/P7/8/8/K7/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2023-03-30 more...
18 - P1120263
Aleksandr Oleynik
Problemist Pribuzhya 27/10/1999
Marandjuk-50 10. Lob
P1120263
(4+2)
#4
b) wSc8
a) 1. Kb8 Kd6 2. d8=D+ Ke5 3. Dh4 Kd6 4. Df6#;
b) 1. d8=T
play all play one stop play next play all
BUT4 FP SO-K-T m
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. d8T Kc7 2. Td6 Kxc8 3. Kb6 Kb8 4. Td8# (2022-08-07)
comment
Keywords: Miniature Collection (0347535), Forsberg Twins, Minimal (b)
Genre: n#
FEN: 2B5/K2P4/2k5/2p5/2P5/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2022-08-08 more...
19 - P1120640
Lev Grolman
10969 Probleemblad 03/1998
P1120640
(4+3)
#2
b) wBb2
a) 1. La3? (2. Db4) ... a5 2. Tb1, ... c5!;
1. Lc3? ... c5 2. Tb1, ... a5!;
1. Tc1? ... a5/Ka5 2. Dc4/Tc5, ... c5!;
1. Tb1! (Zugzwang) ... a5/c5 2. La3/Lc3, ... Ka5/Kc5 2. Lc3/La3;
b) 1. b3! ... a5/c5 2. Dc4/Da4, ... Ka5/Kc5 2. Da4/Dc4
play all play one stop play next play all
C41 A18L3 FP 4MW
SCHRECKE: a)+b): C+, popeye 4.87 (2022-08-07)
comment
Keywords: Miniature Collection (0244845), Forsberg Twins
Genre: 2#
FEN: 8/K7/p1p5/1k6/4Q3/8/1B6/3R4
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
20 - P1125450
Nikolay S. Zinovyev
9511 Ideal-Mate Review 72 10/1998
P1125450
(6+1)
#4
b) wBd7
a) 1. Lf5 Kd4 2. Ld3 Kd5 3. Lc4+ Kd4 4. e3#;
b) 1. d8S Kd4 2. Se6+ Kd5 3. Sf4+ Kd4 4. e3#
play all play one stop play next play all
BsL2 BsS2 BUS4 FP
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. d8S! Kd4 2. Se6+ Kd5 3. Sf4+ Kd4 4. e3# (2022-08-07)
comment
Keywords: Miniature Collection (0328233), Forsberg Twins, Miniature
Genre: n#
FEN: 8/3B1N2/8/1K1k4/8/5P2/3PP3/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Arnold Beine, 2022-08-07 more...
21 - P1126094
Fritz Hoffmann
4784 Mat (Belgrade) 03/1986
P1126094
(4+3)
#2
b) sTh8
a) 1. c7? ... Le5!
1. Kc4! droht 2. Dd5#
1. ... Le5 2. Dd7#

b) 1. Kc4? ... Td8!
1. c7! droht 2. c8=S#
1. ... Td8 2. cxd8=D#
play all play one stop play next play all
BUc1 FP
SCHRECKE: a)+b): C+, popeye 4.85 (2021-05-04)
comment
Keywords: Miniature Collection (0008661), Forsberg Twins, Miniature
Genre: 2#
FEN: 3B3b/8/2Pk4/1K3Q1p/8/8/8/8
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2021-05-03 more...
22 - P1126118
Leonid A. Lebedew
Babruiskae zhhyzze 20/11/1998
P1126118
(3+4)
#3
b) wLg1->d1; c) wLg1->h3; d) wSg1
a) 1. Lf2;
b) 1. Lf3;
c) 1. Le6;
d) 1. Sf3
play all play one stop play next play all
FP m03 A10-23- Echos
Henrik Juel: C+ Popeye 4.61 (2022-02-20)
Henrik Juel: The animation may work if captures are indicated in b) and d): Lxf3 and Sxf3 (2022-02-20)
comment
Keywords: Miniature Collection (0346759), Forsberg Twins
Genre: 3#
FEN: 5k2/5p2/1p3Q2/1K6/8/5p2/8/6B1
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
23 - P1126288
Nikolay S. Zinovyev
4650 Ideal-Mate Review 40 04/1991
P1126288
(4+1)
#3
b) wLa2
a) 1. e7 Kb4 2. e8=D Kc4 3. De4#;
b) 1. e7! Kb4 2. e8=T Ka4 3. Te4#
play all play one stop play next play all
BUT23 IM FP
SCHRECKE: a)+b): C+, popeye 4.87
b) 1. e7! Kb4 2. e8T Ka4 3. Te4# (2022-08-07)
comment
Keywords: Miniature Collection (0327763), Forsberg Twins, Kindergarten Problem, Miniature
Genre: 3#
FEN: 8/8/1K2P3/8/k7/8/PP6/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Arnold Beine, 2022-08-07 more...
24 - P1126643
Pjotr Schalimow
Kudesnik 1998
P1126643
(4+1)
#4
b) wSc6
a) 1. Kb5 Kc7 2. Te6 Kb8 3. Kb6 Kc8 4. Te8#;
b) 1. Sd4
play all play one stop play next play all
TX5 FP A12TT1 RU-KT mm
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. Sd4! Kd5 2. Sb5 Kc4 3. Td8 Kb4 4. Td4#
1. ... Kd7 2. Te6 Kc8 3. Td6 Kb8 4. Td8#
2. ... Kd8 3. Kc6 Kc8 4. Te8# (2022-08-07)
comment
Keywords: Miniature Collection (0326924), Forsberg Twins
Genre: n#
FEN: 4R3/8/1KBk4/8/8/8/P7/8
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
25 - P1126778
Robert A. Lincoln
419 Fun with Chess Miniatures 1996
P1126778
(5+2)
#2
b) wSf2
a) 1. Le1

b) 1. Se4
play all play one stop play next play all
A9-1S- FP Bc2 MW
SCHRECKE: a)+b): C+, popeye 4.87
a) 1. Le1! (Zugzwang)
1. ... Kc2 2. Sd4#
1. ... Kc4 2. Da2#
1. ... c2 2. Sa5#
b) 1. Se4! (Zugzwang)
1. ... Kc2 2. Sd4#
1. ... Kc4 2. Da2#
1. ... c2 2. Sd2# (2023-05-22)
comment
Keywords: Miniature Collection (0317215), Forsberg Twins, Minimal, Miniature
Genre: 2#
FEN: 8/8/1KN5/8/8/1kp5/4PB2/Q7
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2023-05-22 more...
26 - P1132500
Aleksandr Grin
650 Schach-M 27 04/1989
P1132500
(4+3)
#3
b) wLa4
a) 1. Sc3 b3 2. Sa2 bxa2 3. b4#;
b) 1. Ld1
play all play one stop play next play all
B3e FP TEL
SCHRECKE: a)+b): C+, popeye 4.87
b) 1. Ld1! b3 2. Lc2 bxc2 3. b4# (2022-08-07)
comment
Keywords: Miniature Collection (0343357), Forsberg Twins
Genre: 3#
FEN: 8/8/1p6/kB6/NpK5/8/1P6/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
27 - P1133798
Vladimir Kozhakin
3 Kudesnik 10/08/2000
P1133798
(5+2)
#2
b) sSb2
a) 1. Td3? ... Df6!;
1. Td2! (2. Lb2) ... Dc3+/Dd4+/De5+/Df6 2. Lc3/Ld4/Le5/Sb3;
b) 1. Td4! ... Sa4+/Sd3+/Sd1/Sc4 2. Ta4/Td3/Td1/Tc4
play all play one stop play next play all
D18e FP
SCHRECKE: a)+b): C+, popeye 4.87 (2022-08-07)
comment
Keywords: Miniature Collection (0266437), Forsberg Twins
Genre: 2#
FEN: 8/8/5B2/2K5/8/8/Bq6/k1NR4
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
28 - P1135093
Klaus Schmidt
2664 Rhein-Neckar-Zeitung 12/04/2003
P1135093
(4+1)
#5
b) wLe2
a) 1. Tf3 Ke5 2. e3 Ke6 3. Tf7 Ke5 4. Kd7 Kd5 5. Tf5#;
b) 1. Sc4! Ke4 2. Tf3 Kd4 3. Kd6 Ke4 4. Sd2+ Kd4 5. Td3#
play all play one stop play next play all
T12K T22S FP
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. Sc4! Ke4 2. Tf3 Kd4 3. Kd6 Ke4 4. Sd2+ Kd4 5. Td3# (2022-08-07)
comment
Keywords: Miniature Collection (0330420), Forsberg Twins, Miniature
Genre: n#
FEN: 8/8/2KN4/8/3k4/6R1/4P3/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Arnold Beine, 2022-08-07 more...
29 - P1135615
Mykola G. Lebedinez
3140 Problemist Pribuzhya 35 10/11/1992
P1135615
(3+2)
#2
b) wTg6: #3
a) 1. Db1 Ka5,Ka7 2. Db5,Db7#
b) 1. Txf6 Ka5,Ka7 2. Tf4,Tf8 Ka6 3. Ta4,Ta8#
play all play one stop play next play all
A12DD4 TX1 FP mm
Henrik Juel: duals in part b), e.g. 1.Txf6 Ka5 2.Tf4,Kc5 (2021-10-08)
comment
Keywords: Miniature Collection (0315796), Forsberg Twins
Genre: 2#, 3#
FEN: 8/8/k1K2pQ1/8/8/8/P7/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
30 - P1137989
Wolfgang Alexander Bruder
Der Tagesspiegel 22/01/1995
P1137989
(6+1) C+
#4
b) wLd5, 5#
a) 1. Se7! Kc4 2. Kc2 Kb4 3. Sc6+ Kc4 4. b3#
b) 1. Lc6! Kc4 2. Kc2 Kb4 3. Sd5+ Ka5 4. b4+ Ka6 5. Sc7#
play all play one stop play next play all
BsS0 PSAd4 PSAd5 FP
more ...
comment
Keywords: Miniature Collection (0074582), Forsberg Twins, Miniature, Rex solus
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/8/8/3N4/8/2NkB3/1P3P2/3K4
Reprints: 49 Problemschach-Jahrbuch 1995 D , p. 28, 1996
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-06-30 more...
31 - P1138121
Vladislav Metlitsky
Nowini Sakarpattja 1999
P1138121
(4+2)
#5
b) wBd4
a) 1. Sc2 Kg1 2. Ke1 Kh1 3. Sxd4 Kg1 4. Sf3+ Kh1 5. Th2#;
1. Te2
play all play one stop play next play all
A12TT1 SYL FP
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. Te2! Kg1 2. Kd2 Kf1,Kh1 3. Ke3 Kg1 4. Sf3+ Kf1 5. Tf2#
4. ... Kh1 5. Th2# (2022-08-07)
comment
Keywords: Miniature Collection (0347440), Forsberg Twins
Genre: n#
FEN: 8/8/8/8/3p4/3P4/3R4/3KNk2
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
32 - P1138319
Michail W. Matrjonin
2887 Shakhmatnaya Kompozitsiya 52 03/2003
P1138319
(5+2)
#4
b) wBd2
a) 1. Ta8 Kc4 2. Ta3 d3 3. Tea5 Kd4 4. T3a4#;
b) 1. ?
play all play one stop play next play all
FP
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. Td8! Kc4 2. Kc2 Kb4 3. Txd4+ Ka3 4. Ta5#
2. ... d3+ 3. Kb2 Kb4 4. Td4# (2022-08-07)
comment
Keywords: Miniature Collection (0340440), Forsberg Twins
Genre: n#
FEN: 2R5/8/8/4RP2/3p4/3k4/3B4/3K4
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
33 - P1140848
Werner Speckmann
VII Deutsche Schachzeitung , p. 109, 03/1967
P1140848
(4+1) C+
#2
b) wBa2, wBg2
a) 1. Se3+;
b) 1. Dd4
play all play one stop play next play all
Q21+ ASd2 FP
Neufassung zu Wochenpost 1957 [P1159930, P1159931]
Henrik Juel: C+ Popeye 4.61 (2020-12-17)
comment
Keywords: Miniature Collection (0015947), Forsberg Twins
Genre: 2#
Computer test: Henrik Juel (2020-12-17): C+ Popeye 4.61
FEN: 3Q4/8/8/8/8/3K4/N5N1/3k4
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
34 - P1143202
Mykola Kuligin
3035 Sächsische Zeitung 23/03/2002
P1143202
(4+1)
#3
b) wBg4->a2
c) ferner +wSa2
a) 1. Tc3! Ke4 2. Kc5 Ke5 3. Te3#
b) 1. a4! Kc4 2. Ke5 Kc5 3. Tc3#
c) 1. Sc1! Kc4 2. Tb3 Kd4 3. Tb4#
play all play one stop play next play all
e138 IM FP
SCHRECKE: a),b)+c): C+, popeye 4.87 (2022-08-07)
comment
Keywords: Model mate, Forsberg Twins
Genre: 3#
FEN: 8/8/3K4/3N4/3k2P1/4R3/8/8
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
35 - P1144841
Leonid A. Lebedew
Babruiskae zhhyzze 26/12/1998
P1144841
(5+2)
#4
b) wSb4; c) wBb4
a) 1. La5! Ka7 2. Kc7 Ka8 3. Lb7+ Ka7 4. Lb6#
1. ... Ka8 2. Kc7 Ka7 3. Lb6+ Ka8 4. Lb7#

b) 1. Kxd7! Ka7 2. Kc7 Ka8 3. Lb7+ Ka7 4. Sc6#
1. ... Ka8 2. Kc7 Ka7 3. Sc6+ Ka8 4. Lb7#

c) 1. b5! Ka7 2. Kc7 Ka8 3. Lb7+ Ka7 4. b6#
1. ... Ka8 2. Kc7 Ka7 3. b6+ Ka8 4. Lb7#
play all play one stop play next play all
MA-LL MA-LS MA-LB FP-3
Henrik Juel: C+ Popeye 4.61 (2020-12-18)
comment
Keywords: Miniature Collection (0346906), Forsberg Twins
Genre: n#
FEN: 1kBK4/3p4/3P4/2P5/1B6/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
36 - P1147116
Vladimir Kozhakin
'1.2.3.4.' 07/2001
4. Thematurnier 2. Lob
P1147116
(4+3)
#4
b) sLa3
a) 1. Df3+ Tc3 2. Db7+ Sb5 (2... Kc2 3. Ta2+ Kc1 4. Db2#) 3. Dxb5+ Kc2 4. Db1#
play all play one stop play next play all
HB FP
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. Dd3+! Tc3 2. Db5+ Lb4! 3. Da4+ Kb2 4. Da2# (2022-08-08)
comment
Keywords: Miniature Collection (0348126), Forsberg Twins
Genre: n#
FEN: 8/8/8/8/8/nk6/2r5/R2QKB2
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-06 more...
37 - P1150275
Nikolay S. Zinovyev
7558 Ideal-Mate Review 61 01/1996
P1150275
(4+1)
#4
b) wLc6
a) 1. Se5 Kd6 (1... Kf6 2. Le3 Ke6 3. Lg5 Kd6 4. Tc6#) 2. Tg7 Ke6 3. Lc5 Kf6 4. Tg6#;
b) 1. Le8
play all play one stop play next play all
IM FP e133 e128
SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force
b) 1.Le8! Kd6 2.Tg7 Ke6 3.Lc5 Kf6 4.Tg6#, 1. ... Kf6 2.Le3 Ke6 3.Lg5 Kd6 4.Tc6# (2021-01-01)
comment
Keywords: Miniature Collection (0328141), Forsberg Twins
Genre: n#
FEN: 8/2R5/2N1k3/8/4K3/8/8/6B1
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
38 - P1151653
Valerian Onitiu
Allgemeine Zeitung Chemnitz 1924
P1151653
(5+2)
#2
1. Le4! Kh3 2. Sf2#
1. ... Kh5 2. Sf6#
play all play one stop play next play all
Zwilling zu P1151655
SAD FP ->Z
SCHRECKE: C+, popeye 4.87 (2022-08-07)
comment
Keywords: Miniature Collection (0292480), Minimal, Miniature, Forsberg Twins
Genre: 2#
FEN: 8/8/4p3/4K3/5QNk/8/2B1P3/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
39 - P1151655
Valerian Onitiu
Allgemeine Zeitung Chemnitz 15/06/1924
P1151655
(5+2)
#2
1. Tc4! Kh3 2. Dh2#
1. ... Kh5 2. Dh6#
play all play one stop play next play all
Zwilling zu P1151653
A12DD5 FP ->Z
SCHRECKE: C+, popeye 4.87 (2022-08-07)
comment
Keywords: Miniature Collection (0292481), Minimal, Miniature, Forsberg Twins
Genre: 2#
FEN: 8/8/4p3/4K3/5QNk/8/2R1P3/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
40 - P1152611
Anthony J. Taffs
12 Chess Cabala 1981
P1152611
(4+2)
#3
b) wBd4
a) 1. Dxd4+ Ke2 2. Sh2 Ke1 3. Te4#;
b) 1. De4
play all play one stop play next play all
T16S FP SYG
SCHRECKE: a)+b): C+, popeye 4.87
b) 1. De4+! Kf2 2. Tg4 Kf1 3. De1# (2022-08-07)
comment
Keywords: Miniature Collection (0341205), Forsberg Twins
Genre: 3#
FEN: 8/8/4K3/3Q4/3p1R2/4kN2/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
41 - P1154022
Viktor Chepizhny
361 Schachmatnyje Sadatschi-Miniatjury [Tischkow, Tschepishny] , p. 104, 1987
P1154022
(4+2)
#2
b) wLg4
a) 1. Th4! droht 2. Th8#
1. ... Sh7 2. gxh7#
1. ... Sf7 2. gxf7#

b) 1. Lf5! Sh3,Sf3,Se4,Se6 2. Le6#
1. ... Sh7 2. Le6#
1. ... Sf7 2. gxf7#
play all play one stop play next play all
B3c FP
SCHRECKE: b) 1. ... Sh7 2. Le6,gxh7# (Mattdual) (2022-08-08)
comment
Keywords: Miniature Collection (0022302), Forsberg Twins
Genre: 2#
FEN: 4K1k1/8/6P1/6n1/3B2R1/8/8/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
42 - P1158526
Nikolay Kralin
113 Smena (Moskwa) 11/1995
P1158526
(6+1) C+
#6
b) wSe2
a) 1. Lf1 Kh5 2. Kf5 Kh4 3. Lh6 Kh5 4. Lf4 Kh4 5. Lg5+ Kh5 6. Le2#;
b) 1. Sg1
play all play one stop play next play all
A18e FP
SCHRECKE: b) 1. Sg1! Kh5 2. Kf5 Kh4 3. Kg6 Kg4 4. Lb4 Kh4 5. Le1 Kg4 6. f3# (2023-01-03)
comment
Keywords: Miniature Collection (0336924), Forsberg Twins
Genre: n#
Computer test: Gustav 3.2r.
FEN: 5B2/8/8/4P3/5K1k/4P3/4BP2/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
43 - P1160619
Valery G. Smirnov
Leninski Sawet 22/04/2003
P1160619
(5+2)
#4
b) wSd6
a) 1. La3 Kc4 2. Lc2 Kd4 3. Ta4+ Kd5 4. Le4#
play all play one stop play next play all
L12T FP m
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. Tb5! Ka3 2. Lc2 Ka2 3. Sc4 Ka1 4. Ta5#
1. ... Ka4 2. Lc2+ Ka3 3. Sc4+ Ka2 4. Ta5# (2022-08-08)
comment
Keywords: Miniature Collection (0349228), Forsberg Twins
Genre: n#
FEN: 8/5p2/3B1K2/R4B2/8/1k6/3P4/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
44 - P1161307
Alan Godbout
175 Apprenti Sorcier 1992
P1161307
(4+2)
#4
b) wLe4
a) 1. Kf5 Kxd3 2. Dc1 Kd4 (2... Ke2 3. Db1 Kf3 4. Df1#) 3. Dc3+ Kd5 4. Dc5#;
b) 1. Da1
play all play one stop play next play all
Q12- FP
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. Da1! Kc5 2. Da5+ Kd6! 3. Da7 e2 4. De7# (2022-08-08)
comment
Keywords: Miniature Collection (0202572), Forsberg Twins
Genre: n#
FEN: 8/8/5K2/8/3kN3/3Pp3/8/6Q1
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
45 - P1163345
Vladislav Bunka
20 Die Schwalbe 150, p. 576, 12/1994
Kompositionsturnier zum 50. Geb.
von H.-P. Rehm
Lob o. R.
P1163345
(4+3)
#6
b) wSa6
a) 1. c7! Kxa6 2. c8=D+ Kb5 3. Dc3 Ka4 4. Db2 Ka5 5. Db3 Ka6 6. Db6#;
b) 1. Sac5! Ka8 2. c7 Ka7 3. c8=S+ Ka8 4. Se7 Ka7 5. Sc6+ Ka8 6. Sb6#
play all play one stop play next play all
SsS1 BUS4 FP Q24- mm
Henrik Juel: duals in part a), like 2... Ka5 3.Db7 Ka4 4.Sc5+,Se5
Part b) is C+ Popeye 4.61 (2023-07-29)
comment
Keywords: Miniature Collection (0324538), Forsberg Twins, Zugzwang-Goal, Miniature, Promotion (wD), under-promotion (wS)
Genre: n#
FEN: 8/k2N4/P1P5/8/8/8/6p1/6Kb
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-07-29 more...
46 - P1164640
Rolf Uppström
15410 Tidskrift för Schack 12/1995
Spez. ehr. Erw.
P1164640
(2+5)
#2
b) sLg4
a) 1. Dc8! (2. Dh8) ... T~ 2. Dh3;
b) 1. Dd4! (Zugzwang) ... Kh5 2. Dh8
play all play one stop play next play all
FP
vf: evtl. 10/1995
SCHRECKE: a)+b): C+, popeye 4.87 (2022-08-07)
comment
Keywords: Miniature Collection (0018141), Forsberg Twins
Genre: 2#
FEN: 8/8/6p1/6p1/2Q3rk/6p1/6K1/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
47 - P1165994
Nikolai D. Slydnjow
2576 Shakhmatnaya Kompozitsiya 47 05/2002
P1165994
(4+1)
#5
b) wBg6, wBh6
a) 1. Lh7 Kxh7 2. Kg5 Kg8 3. Kg6 Kh8 4. Lg7+ Kg8 5. Sf6#;
b) 1. Kf5
play all play one stop play next play all
MA-LS LO5 BsS0 FP
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. Kf5! Kg8 2. Ke6 Kh8! 3. Ke7 Kg8 4. Sf6+ Kh8 5. g7# (2022-08-08)
comment
Keywords: Miniature Collection (0340420), Forsberg Twins
Genre: n#
FEN: 7k/8/6BB/7N/6K1/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
48 - P1168494
Lev Grolman
Na Smenu! 30/04/1996
Ljaljuschkin-60 2. Preis
P1168494
(3+4)
#2
b) wDc3
a) 1. Sd5? ... S~/e4 2. Sf6/Sf4, ... h3!;
1. Se2? ... e4/h3 2. Sf4/Sg3, ... S~!;
1. Se4! (Zugzwang) ... h3/S~ 2. Sg3/Sf6;
b) 1. Dd3? ... e4!;
1. De1? ... Sf2!;
1. Dc1? ... Se3!;
1. Dc6? ... Sf6!;
1. Dc4! (2. Df7) ... S~ 2. Dh4
play all play one stop play next play all
B12S FP KW2
SCHRECKE: a)+b): C+, popeye 4.87 (2022-08-08)
comment
Keywords: Miniature Collection (0272909), Forsberg Twins
Genre: 2#
FEN: 8/6K1/8/4p2k/6np/2N2N2/8/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
49 - P1170109
Bernd Horstmann
47 Problem-Forum 7 09/2001
P1170109
(5+2)
#4
b) wLg5
a) 1. Sd2 Kh4 2. Se4 Kh5 3. Sf6+ Kh4 4. Tg4#;
b) 1. Lf6
play all play one stop play next play all
T22S FP
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force
b) 1. Lf6! g5! 2. Se5 g4! 3. Txg4 Kh6 4. Th4# (2022-08-08)
comment
Keywords: Miniature Collection (0337133), Forsberg Twins
Genre: n#
FEN: 8/8/6p1/6Pk/8/5NR1/6P1/7K
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
50 - P1175471
Klaus-Peter Zuncke
3524 Land og Folk 04/08/1979
P1175471
(3+1)
#2
b) wTd3
a) 1. Df2 Ka1 2. Db2#
b) 1. Td2+ Kc1 2. Dc2#
1. Td2+ Ka1 2. Df1#
play all play one stop play next play all
AS/2 FP
SCHRECKE: a)+b): C+, popeye 4.87 (2022-08-08)
comment
Keywords: Miniature Collection (0312167), Forsberg Twins
Genre: 2#
FEN: 8/7K/8/5Q2/8/3N4/8/1k6
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
51 - P1175715
Anatoly Agarkov
363 Sa ogneupory 05/11/1987
P1175715
(4+1)
#3
b) wSa7
a) 1. d7 Kf7 2. d8=S+ Kf8 3. Lc5#;
b) 1. Sb5
play all play one stop play next play all
LsB BUS20 FP
SCHRECKE: a)+b): C+, popeye 4.87
1. Sb5! Kf7 2. Sc7 Kf8 3. Tf6# (2022-08-08)
comment
Keywords: Miniature Collection (0342558), Forsberg Twins
Genre: 3#
FEN: 5k1K/B7/3PR3/8/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-08-06 more...
52 - P1184762
Oleg Paradzynskyi
14870 Schach 10/2001
P1184762
(6+5) C+
s#6
b) sTa1
a) 1. Td8+ Kb2 2. Th5 Ka3 3. Ta8+ Kb2 4. Td5 cxd5+ 5. Kd4 c6 6. Lc2 Kxc2#
b) 1. Th2+ Kb1 2. Se4 c5 3. Tc3 c6 4. Kb3 c4+ 5. Ka3 c5 6. Txa2 Txa2#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force (2021-01-19)
comment
Keywords: Forsberg Twins
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/2p4B/2p5/2N5/2K5/3RB2R/p1k5/b7
Input: Frank Müller, 2011-01-11
Last update: Marcin Banaszek, 2021-01-24 more...
53 - P1191293
Diyan Kostadinov
875 The Ural's Problemist 01-03/2011
Speziallob Miniatur
P1191293
(5+2) C+
s#7
b) wSe6
a) 1. Ld7 Kf7 2. Tg7+ Kf6 3. Te6+ Kf5 4. Th6+ Te6 5. Tgh7 Kg5 6. Th5+ Kg6 7. Le8+ Txe8#
b) 1. Sc7 Kf7 2. Tg7+ Kf6 3. Sb5 Kf5 4. Sd6+ Kf6 5. Dh4+ Tg5 6. Dh6+ Tg6 7. Tgg8 Txh6#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-12-07)
comment
Keywords: Aristocrat, Forsberg Twins
Genre: s#
FEN: 4R2K/8/4Bk2/4r3/3Q4/6R1/8/8
Input: Frank Müller, 2011-03-27
Last update: Marcin Banaszek, 2020-12-09 more...
54 - P1227381
Laszlo Apro
8322 Schach-Echo 6, p. 95, 03/1975
P1227381
(8+7) C+
s#2
b) wLg7
a) 1. Dc7! Sa5 2. Dxa5 Th2#
1. ... Sc5 2. Dxc5 Th2#
1. ... Sxd6 2. Dxd6 Th2#
1. ... Sd8 2. Dxd8 Th2#

b) 1. Lh6! Sa5 2. Sxa5 Th2#
1. ... Sc5 2. Sxc5 Th2#
1. ... Sxd6 2. Sxd6 Th2#
1. ... Sd8 2. Sxd8 Th2#
play all play one stop play next play all
more ...
comment
Keywords: Grab, Forsberg Twins
Genre: s#
Computer test: SCHRECKE: a)+b): C+, popeye 4.89
FEN: 8/1n4Q1/3PNPP1/8/2N3p1/3P1kpb/5pr1/5K2
Input: Frank Müller, 2011-12-17
Last update: Dieter Berlin, 2024-01-02 more...
55 - P1235550
Mike Prcic
S0136 StrateGems 04-06/2001
2. Lob
P1235550
(8+3) C+
s#5*
b) wLa2: s#4*
c) wTa2: s#3*
d) wDa2: s#3*
a) * 1. ... Dxa6#
1. Se1 Kb4 2. Dd2+ Ka4 3. Dd1+ Kb4 4. Sc2+ Ka4 5. Dd5 Dxa6#
b) * 1. ... Dxa6#
1. Se1 Kb4 2. Sc2+ Ka4 3. Lb1 a2 4. Lxa2 Dxa6#
c) * 1. ... Dxa6#
1. De4+ Kb3 2. De6+ Ka4 3. Dd5 Dxa6#
d) * 1. ... Dxa6#
1. Sc1 Kb4 2. Dd2+ Ka4 3. Sa2 Dxa6#
play all play one stop play next play all
SCHRECKE: a)-d): C+, Gustav 4.1d, Brute Force (2021-10-28)
comment
Keywords: Forsberg Twins
Genre: s#
FEN: 8/2PP4/R1K5/q1RQ4/k7/p2N4/P7/8
Input: Frank Müller, 2012-03-31
Last update: Marcin Banaszek, 2021-10-28 more...
56 - P1249342
Ivan Bryukhanov
15881 Schach 01/2006
P1249342
(3+4) C+
s#4
b) wSg8
a) 1. Tc5 Ka4 2. De8+ Ka3 3. Tc3 bxc3 4. Db5 c2#
b) 1. Sf6 Ka4 2. Se4 Ka3 3. Sc3 bxc3 4. Th4 c2#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force (2021-12-08)
comment
Keywords: Forsberg Twins, Miniature, Pawn mate, Change of Sacrifices
Genre: s#
FEN: 6Q1/8/8/7R/1p6/kp6/1p6/1K6
Input: Frank Müller, 2012-09-20
Last update: Gunter Jordan, 2023-01-27 more...
57 - P1253024
Miodrag Mladenovic
S894 The Problemist 03/1983
1. ehrende Erwähnung
P1253024
(12+6)
s#3
b) wLc8
a) 1. Td8 Tg7,Tg8 2. La5+ Kxc5 3. Td5+ Dxd5#
1. Td8 Dg1 2. Da5+ Kxc4 3. Td4+ Dxd4#
b) 1. Lb7 Tg7,Tg8 2. Da5+ Kxc4 3. Ld5+ Dxd5#
1. Lb7 Dg1 2. La5+ Kxc5 3. d4+ Dxd4#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.2a (2023-07-13)
comment
Keywords: Forsberg Twins, reciprocal changed continuations
Genre: s#
FEN: 2R5/8/QB2PP2/2N1KP2/1kN2P2/8/3Pp1rp/4Rb1q
Input: Frank Müller, 2012-11-04
Last update: Frank Müller, 2012-11-04 more...
58 - P1257014
Achim Schöneberg
3708 Problemkiste (98) 04/1995
P1257014
(6+3)
ser-h#4
b) sLf4->sTf4
a) 1. Lxb8 2. Le5 3. Lxb2 4. Lh8 Dxh8#
b) 1. Txe4 2. Txb4 3. Th4 4. Th1 Dxh1#
play all play one stop play next play all
Jeweils 2-mal Beseitigung weißer Masse und Opfer
auf dem Mattfeld (Autor).
SCHRECKE: C+, Gustav 4.2c, Brute Force (2023-04-14)
comment
Keywords: Seriesmover, Forsberg Twins, Capture key, corner to corner (D), Corner mate, Model mate, Line opening
Genre: Fairies
Computer test: %C+ lt.Autor
FEN: QR6/8/K7/8/1P2Bb2/8/pP6/k7
Input: Erich Bartel, 2012-12-21
Last update: Gunter Jordan, 2023-04-14 more...
59 - P1279665
Oleg Paradzynskyi
1964 Suomen Tehtäväniekat 10/2000
Informalturnier 2000/01
Lob
P1279665
(12+6) C+
s#6
b) sSd4
a) 1. Sxd6 Kxd6 2. c8=S+ Kd5 3. Le8 Kxe6 4. Tc6+ Kd5 5. Tc5+ Ke6 6. Te5+ Lxe5#
b) 1. Dxa5+ Sb5 2. Dd2+ Sd4 3. Tb2 Kc4 4. Tb4+ Kd5 5. Tb5+ Kc4 6. De2+ Sxe2#
play all play one stop play next play all
more ...
comment
Keywords: Forsberg Twins
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 2N5/2PB4/1P1pP1p1/p2k1pP1/N2b1K2/4PP2/2RQ4/8
Input: Frank Müller, 2013-10-29
Last update: Marcin Banaszek, 2021-01-31 more...
60 - P1282913
Torsten Linss
2768 Rochade Europa 12/2013
Lob
Informalturnier 2012-2013
PR Hans Gruber
P1282913
(5+2) C+
s#10
b) sLc7
a) 1. Da4+ Kc5 2. Dd4+ Kb5 3. Tf5+ Sd5 4. f8=T Ka5 5. Tb8 Kb5 6. e8=S Ka5 7. Ka8 Ka6 8. Dc4+ Ka5 9. Db4+ Ka6 10. Sc7+ Sxc7#
b) 1. e8=L+ Kc5 2. f8=D+ Ld6 3. Df5+ Le5 4. Da6 Kd5 5. Kc8 Kc5 6. Kd8 Kd5 7. Dac8 Kd6 8. Df8+ Kd5 9. Dg8+ Kd6 10. Tf6+ Lxf6#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-12-23)
comment
Keywords: Allumwandlung, Forsberg Twins, konsekutive Umwandlungen 2
Genre: s#
FEN: 8/1Kn1PP2/8/1k6/5R2/8/Q7/8
Reprints: Die Schwalbe (272), p. 102, 04/2014
2768 Die Schwalbe 12/2018
Input: TLi, 2014-02-06
Last update: Marcin Banaszek, 2020-12-27 more...
61 - P1283305
Harald Grubert
Dieter Müller
Torsten Linss

10 harmonie 29 30/06/1990
P1283305
(4+3)
h#4
b) sBc2
a) 1. Dd5 Ke2 2. Kf4 Sd8 3. Lf5 Se6 4. Ke4 f3#
b) 1. c1=L d5 2. Lb2 Ke3 3. Lf6 Se7 4. Ke5 f4#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force (2021-12-27)
comment
Keywords: Chameleon Echo, Ideal mate, under-promotion key (in b), Forsberg Twins, Miniature, Pawn mate, Pawn step variations, Remote selfblock (in a), Selfblock
Genre: h#
FEN: 8/8/2Nq4/5k2/3P4/5K2/2b2P2/8
Reprints: 26 Hilfsmattvierer , p. 11, 2000
Input: TLi, 2014-02-16
Last update: Gunter Jordan, 2021-12-27 more...
62 - P1317443
Sergey Radchenko
10322 Ideal-Mate Review 76 10-12/1999
Preis
PR Eugene Albert
P1317443
(4+3)
ser-h#5
b) wLf4
a) 1. Kxf1 2. Kxe2 3. Ke1 4. h1=T 5. Tf1 Te4#
b) 1. h1=L 2. Lhg2 3. Lxf1 4. Lxe2 5. f1=L Lg3#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2021-05-15)
comment
Keywords: Forsberg Twins, Ideal mate, Miniature, Phoenix (in b), Round Trip (in a), Selfblock, Seriesmover, Promotion key (in b), Exchange of Promotions, under-promotion, Twin
Genre: Fairies
FEN: 8/8/8/8/5R2/8/4Pp1p/2K1kB2
Input: Gunter Jordan, 2016-02-19
Last update: Rainer Staudte, 2023-01-19 more...
63 - P1341579
Michel Olausson
PS224 The Problemist Supplement 12 05/1994
P1341579
(3+3) C+
h#2
Circe
Umwandlung auch
b) wSUc1 statt wTLc1
wSU,sSU=Nachtreiter
wTL=Pao
a) 1. b1=N d8=D 2. Nd5 Dxd5[+sNd1]#
b) 1. bxc1=PA[+wNc8] d8=N 2. PAg1 Nf2#
play all play one stop play next play all
Laut Begleittext ist in b) Umwandlung in PAO erlaubt
more ...
comment
Keywords: Circe, Forsberg Twins, Promotion
Pieces: su = Nightrider (N), tl = Pao (PA)
Genre: Fairies
Computer test: Henrik Juel: C+ Popeye 4.61 (2021-02-26)
FEN: 6K1/3P4/8/8/8/8/1p5*2n/2*3R4k
Input: HBae, 2017-10-12
Last update: James Malcom, 2021-02-27 more...
64 - P1369565
Pavlos N. Moutecidis
765 Problemista 07/1964
P1369565
(4+11) cooked
h#2
b) wLb2 statt wTb2
a) 1. Tb4-b6 Kb1-a2 2. De2-b5 Tb2-b1#
b) 1. Kf1-e1 Kb1-c1 2. De2-e5 Lb2-c3#
play all play one stop play next play all
Cook: NL:
a) 1. De2-b5 Kb1-c2 2. Tb4-a4 Tb2-b1#
Yuri Bilokin: Correction: 5R2/2rpp2b/1B6/8/1pr3n1/8/2R2qpp/2K3k1 (4+11) h#2 b) wBc2
a) 1.R4c6 Kb2 2.Qc5 Rc1#
b) 1.Kf1 Kd1 2.Qf5 Bd3# (2021-05-22)
comment
Keywords: Forsberg Twins
Genre: h#
FEN: 4R2b/1rpp4/B7/8/1r3p2/5p2/1R2qpp1/1K3k2
Input: Marcin Banaszek, 2019-11-20
Last update: Alfred Pfeiffer, 2019-11-21 more...
65 - P1380203
Alberto Armeni
2369 Problemskak 49, p. 15, 01/2020
P1380203
(6+3) C+
h#2
Andernachschach
b) sSh3 statt sLh3
c) sTh3 statt sLh3
a) 1. Lh3-g2 h3 2. Lxh3[=wLh3] Lh3-g2#
b) 1. Sf2 g4 2. Sxg4[=wSg4] Sf6#
c) 1. Th6 d6 2. Txd6[=wTd6] Td4#
play all play one stop play next play all
gemischtfarbiger Meeraner, Themafiguren: wL & sL (in a)
Henrik Juel: Yes, the condition is Andernachschach
The danish magazine is spelled Problemskak, not Problemschack
Complete source: 2369 Problemskak no.49 p.15 01/2020
(Actually this quarterly is dated 1./2./3./4. quarter, but is usually appears in months 01/04/07/10) (2020-09-23)
more ...
comment
Keywords: Forsberg Twins (-Drilling), Meerane-Thema (in a), Switchback (in a), Andernach Chess
Genre: Fairies
FEN: 8/8/8/3P1p2/4kP2/4P1Pb/4K2P/8
Input: Gunter Jordan, 2020-09-23
Last update: Gunter Jordan, 2021-02-26 more...
66 - P1380720
Mirko Degenkolbe
Franz Pachl

Problem-Echo 2004
6. Lob
22. Thematurnier
P1380720
(5+10) C+
h#2
b) wLe5 statt wSe5
c) wTe5 statt wSe5
a) 1. Sd7 dxc7+ 2. Lxc7 Sc6#
b) 1. Td7 dxe7+ 2. Kxe7 Lxf6#
c) 1. Sc6 d7 2. Kxd7 Td5#
play all play one stop play next play all
(MD243)

Dreifaches Hineinziehungs-Opfer des weißen Bauern auf der siebenten Reihe im Forsberg-Drilling.
more ...
comment
Keywords: Forsberg Twins, Drag-in sacrifice
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 1nrkq3/2r1p1K1/3P1p2/b1P1NPnb/8/8/8/8
Input: Felber, Volker, 2020-10-06
Last update: Felber, Volker, 2022-01-01 more...
67 - P1381068
Anatoly Kirichenko
SuperProblem (Website) 22/04/2020
P1381068
(5+6) C+
h#3
b) sTc2 statt sBc2
a) 1. Dd4 Sb1 2. Kc4 Ke1 3. Kd3 Lf1# abc
b) 1. Kd4 Ke1 2. Kc3 Lf1 3. Ld4 Sb1# acb
play all play one stop play next play all
http://superproblem.ru/archive/probl/H3/Kirichenko-h3-2020.gif
more ...
comment
Keywords: Forsberg Twins
Genre: h#
Computer test: Popeye 4.61
FEN: 8/8/8/2k5/1q2P3/1p2bP2/1ppN2B1/5K2
Input: James Malcom, 2020-10-17
Last update: Alfred Pfeiffer, 2020-10-19 more...
68 - P1382055
Jacques Rotenberg
Dominique Forlot

7852 Phénix 273-274 05-06/2017
P1382055
(3+3) C+
h#4
b) sLg7 statt sBg7
a) 1. Se5-f7 Tc6-c8 2. Kd5-e6 Tc8-a8 3. Ke6-e7 Lh2-b8 4. Ke7-f8 Lb8-d6#
b) 1. Kd5-d4 Tc6-c8 2. Se5-d3 Lh2-c7 3. Kd4-c3 Ka1-a2 4. Lg7-d4 Lc7-a5#
play all play one stop play next play all
Jacques Rotenberg: Dominique Forlot is co-author

Themes :
Indian, critical moves, echo model mates (2020-11-20)
comment
Keywords: Forsberg Twins
Genre: h#
Computer test: Popeye 4.83
FEN: 8/6p1/2R5/3kn3/8/8/7B/K7
Input: Marcin Banaszek, 2020-11-18
Last update: Alfred Pfeiffer, 2020-11-26 more...
69 - P1382697
Guus Rol
MatPlus.net Forum 29/11/2020
P1382697
(4+7)
What's the best White can do?
b) sTg1
a) No permitted moves
b) 1. fxg6ep+ Kxg6 2. Dg5#
play all play one stop play next play all
The end position is dead if Black's last move was R: 1. ... g6-g5+ (stalemate is inevitable) but not if it was R: 1. ... g7-g5+ which allows for e.p. Looking at the position prior to the last move:
a) the position with sB on g6 is not dead regardless since the sD can intervene instead of the bP move. This makes the e.p. invalid which would force 1. Dxg5+ Txg5=
b) the position with sB on g6 is already dead so the sB must have come from g7 allowing white to win by 1. fxg6ep+
AB: So what happens in a)? We can't know from the position, even with DP. If White can ep, he wins; if he can't the position is newly dead but still legal (as the alternative last move Qe3 would have kept the game alive). The ep convention specifically resolves the permissibility of the ep itself, but it's too narrow to claim (as at one point I did) that it fails to resolve the permissibility of the contingent Qg5+. So there are no permitted moves.

Suggested position evaluation in orthodox problem chess (OPC) (sketch):
1) What legal moves are there? ("legal" as per FIDE)
2) If 0 legal moves, then is there check? Yes/No => Mate/Pat.
Otherwise there is at least 1 legal move.
If an ep is legal set flag
3) Has this position occurred before? Yes/No => 3Rep/continue.
Is this RETRO? Yes/No => continue/play any legal move.
4) 50.0 moves since last capture or pawn move? Yes/No => 50M/continue
5) Check the child nodes recursively until find which mate. Success/Fail? => play any legal move)/Dead
Henrik Juel: 1.Dxg5+ Txg5= seems to secure half a point in both twins
So there is probably some DP trickery, which Andrew will explain soon... (2020-12-03)
Yoav Ben-Zvi: The end position is dead if Black's last move was -1...bPg6-g5 (Stalemate is inevitable) but not if it was -1...bPg7-g5 which allows for e.p. Looking at the position prior to the last move: in a) it is not dead regardless since the bQ can intervene instead of the bP move (this makes the e.p. invalid forcing 1.wQxg5) but in b) the position with bP on g6 is already dead so the bP must have come from g7 allowing white to win by 1.wPf5xg6 e.p. (2020-12-04)
A.Buchanan: Suggested principle for orthodox problem chess (OPC): playing forwards chess should always be on the basis (at least conceptually) of knowing the full gamestate (castling, e.p.). One can then run the forwards chess for each combination. Call this a "scenario" Some combinations can be rejected as illegal, and we can then hand over to the castling/ep conventions to clear things up.
In a), this results in game over. This makes sense, because under DP the drawing 1.Qg5+ is only playable if the living 1.fxg6ep+ is also playable. So the ep convention nixes both.
And how does the game end exactly? The same thing can happen in a simpler position: 8/k7/2p5/KpP5/1P6/8/8/8 WTM. There are two retro-possibilities, one is pat and the other keeps on going. It's nothing to do with DP rule.
Under RS: The ep convention ends the game, but we can't assume that the history of the game was not the double pawn move! We are just not *permitted* to make this move. We have "draw by ep convention".
Under PRA: our solution comprises one twin, and in that twin, we can assume that ep is actually illegal (or it should be if the conventions were worded properly!) and the position is pat.
The goal here is to codify OPC properly so that it can serve as foundation for retro fairies.
OPC allows for the variations in the castling/ep conventions & protocols. It merely hands off the results of each gamestate scenario. (2022-01-19)
more ...
comment
Keywords: En passant, Forsberg Twins, Dead Position
Genre: Retro
FEN: 6r1/5p1p/5P1k/5Pp1/6pK/8/3Q4/6q1
Input: A.Buchanan, 2020-12-03
Last update: A.Buchanan, 2022-01-19 more...
70 - P1383111
Andriy Sergiyenko
134 Schach , p. 51, 09/2020
Corona Kompositionsturnier 2020
P1383111
(5+2) C+
#2
b) wTf3 statt wLf3
a) 1. c8=T! Ka6 2. Ta8#
b) 1. c8=L! Ka8 2. Ta3#
play all play one stop play next play all
more ...
comment
Keywords: Forsberg Twins, under-promotion key (T,L)
Genre: 2#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 8/k1P1n1R1/8/2K1B3/8/5B2/8/8
Input: Felber, Volker, 2020-12-18
Last update: Alfred Pfeiffer, 2020-12-19 more...
71 - P1385049
Vyacheslav Pilchenko
A249 SuperProblem (Website) 14/12/2020
P1385049
(3+2)
#2
b)wBb5
a) 1. Tc4? Lh2,L~ 2. Ta4#
1. ... La7 2. Sc7#
1. ... Lc7!

1. Tc6! Lh2,L~ 2. Ta6#
1. ... La7 2. Sc7#

b) 1. Tc6? Ka7,L~ 2. Ta6#
1. ... La7!

1. b6! Lh2,L~ 2. Ta5#
1. ... La7 2. b7#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-01-05)
comment
Keywords: Miniature, Forsberg Twins, Aristocrat (in a)
Genre: 2#
FEN: kbK5/8/8/1NR5/8/8/8/8
Input: Rainer Staudte, 2021-01-05
Last update: Felber, Volker, 2021-01-09 more...
72 - P1385119
Aleksandr Pankratiev
Aleksey Ivunin

The Royal Moroccan Chess Federation (FRME) 12/2020
Lob
6. Turnier FRME
Sektion h#2,5-3
P1385119
(3+8) C+
h#3
b) wSe6 statt wBe6
c) wLe6 statt wBe6
d) wTe6 statt wBe6
a) 1. Le8-a4 e6-e7 2. La4-c2 e7-e8=D 3. Lc2-d3 De8-a4#
b) 1. Kc4-d3 Se4-c3 2. Kd3-d2 Se6-d4 3. Kd2-e1 Sd4-f3#
c) 1. Kc4-d3 Kg1-f2 2. d5-d4 Le6-a2 3. c5-c4 La2-b1#
d) 1. Kc4-b3 Se4-c3 2. Kb3-b2 Te6-e2+ 3. Kb2-a1 Te2-a2#
play all play one stop play next play all
Judge Kenneth Solja
more ...
comment
Keywords: Forsberg Twins
Genre: h#
Computer test: Popeye 4.83
FEN: 4b3/8/3pP1rn/2pp2p1/2k1N3/8/8/6K1
Input: Marcin Banaszek, 2021-01-07
Last update: Marcin Banaszek, 2021-01-08 more...
73 - P1385262
Manfred Zucker
151 Stella Polaris 03/1966
P1385262
(3+4) C+
s#3*
Längstzüger
b) wSd6 statt wTd6
a) 1. Le3! Lh4+ 2. Lf2 Ld8 3. Tf6 La5#
b) 1. Se4! La3 2. Sf2 Lf8 3. Lb4 Lxb4#

* 1. ... Lh4#
play all play one stop play next play all
(MZ61)
SCHRECKE: a)+b): C+, popeye 4.85 (2021-01-11)
comment
Keywords: Miniature, Forsberg Twins, Maximummer
Genre: Fairies
Computer test: popeye 4.85
FEN: 8/4b3/3R4/8/8/5p2/k2Bp3/4K3
Input: Felber, Volker, 2021-01-11
Last update: Felber, Volker, 2021-01-16 more...
74 - P1388132
Mykhailo T. Halma
9036 Seven Chess Notes 179 12/2020
P1388132
(3+1) C+
h#2
Köko
b) wLd7
c) wTd7
a) 1. Kf4 Sc5 2. Ke5 Tf6#
b) 1. Kf4 Lg4+ 2. Ke5 Td6#
c) 1. Kf4 Kf5 2. Ke5 Td4#
play all play one stop play next play all
Gleiche schwarze Züge.
more ...
comment
Keywords: Aristocrat, Forsberg Twins, Köko, Rex solus (s), Miniature
Genre: Fairies
Computer test: Popeye 4.61
FEN: 8/3N4/2R5/8/4K3/5k2/8/8
Input: Gunter Jordan, 2021-04-04
Last update: Arnold Beine, 2021-04-05 more...
75 - P1390611
Alexander Fica
18407 Die Schwalbe 306-1 12/2020
P1390611
(4+8) C+
h#3,5
b) sBf2->d7
c) ferner sTd7 statt sBd7
d) ferner sSa4 statt sBa4
e) ferner -sBe4
a) 1. ... Le6 2. Kc5 d4+ 3. Kd6 d5 4. c5 Lh2#
b) 1. ... Ld4 2. d5 Lxf6 3. Kc5 d4+ 4. Kd6 Le5#
c) 1. ... Le3 2. Td3 Le6 3. Tc3 dxc3+ 4. Ka3 Lc1#
d) 1. ... d4 2. Td6 Lg4 3. Kc4 Ld1 4. Kd5 Lb3#
e) 1. ... Lc5+ 2. Kb5 d4 3. Ta7 Lf5 4. Ta5 Ld3#
play all play one stop play next play all
more ...
comment
Keywords: Forsberg Twins
Genre: h#
Computer test: Gustav 4.1d, Brute Force
FEN: 2B5/4p3/2p2p2/7b/pk2p3/8/3P1p2/6BK
Input: Die Schwalbe, 2021-06-08
Last update: Alfred Pfeiffer, 2021-10-12 more...
76 - P1391731
Mirko Degenkolbe
Frank Fiedler

Bulletin 07/2021
1. Platz, Abteilung Orthodox
Victory-Thematurnier zum virtuellen Sachsentreffen 2021
PR: Die Teilnehmer des TT.
P1391731
(5+2) C+
#5
b) wBa4 statt wSa4
a) 1. Sa2! Kxa2 2. Sbc4 Ka1 3. Kxe4 Ka2 4. Sc3+ Ka1 5. Sb3#
b) 1. Sdc4+! Kb4 2. Kd4 e3 3. Sbd3+ Kxa4 4. Kc5 e2 5. Sdb2#
play all play one stop play next play all
(MD1510)

Formschönes „V“, Springeropfer im Gib-Nimm-Schlüssel und Mustermatt-Abschluss. (F. Fiedler)
Frank steuerte den Zwilling bei und wurde zum Mitautor.

Forderung: Konstruiere ein Schachproblem deiner Wahl (außer Märchenschach) in Gestalt eines V (=
Victory) und besiege das Coronavirus der zweiten Welle.

Das Turnier fand im Frühjahr 2021 statt. Initiator und Turnierleiter war erneut Matthias Hentschel.

Preisbericht in: Broschüre "Preisberichte C-Turnier und V-Turnier", udv (Udo Degener Verlag) 2021
Henrik Juel: C+ Popeye 4.61 (2021-07-15)
comment
Keywords: Symbol problem (V), Flight giving and taking key, Model mate, Minimal, Miniature, Non-standard material, Forsberg Twins, Knight sacrifice
Genre: s#
FEN: 8/8/8/8/N3p3/k3K3/1N1N4/2N5
Input: Felber, Volker, 2021-07-14
Last update: Alfred Pfeiffer, 2022-01-27 more...
77 - P1393755
Hans-Peter Reich
Achim Schöneberg

12496 feenschach 244, p. 69, 02-04/2021
P1393755
(5+1+3)
h=3
0.1...
Virrey
b) wTh6 statt wLh6
a) 1. ... d8=nD 2. Dg8+ hxg8=nS 3. Sxf6 Lg7=
b) 1. ... h8=nT 2. Tc8 dxc8=nL 3. Lf5 Th5=
play all play one stop play next play all
Henrik Juel: Virrey is a very artificial condition requiring pawns to promote to the officer type standing on the promotion square in the initial array, on e1/e8 to a non-royal king
Here DTLS on d8/h8/c8/g8 (2021-09-17)
comment
Keywords: Allumwandlung, Forsberg Twins, Virrey Chess
Genre: Fairies
Computer test: WinChloe 3.52
FEN: 8/3-P1K1-P/5-P1B/2P1k3/4P3/4P3/8/8
Input: hpr, 2021-09-15
Last update: hpr, 2021-10-13 more...
78 - P1394548
Robert Sharp
12431 feenschach 02-04/2021
P1394548
(6+11)
h#4
0.1...
b) wTh4
a) 1. ... Lxg5 2. exf3 Le7 3. Ld3 La3 4. e4 Lc1#
b) 1. ... Txh3 2. Lxf4 Th1 3. Sgxf3 Tc1 4. Sd2 Tc3#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 also (2021-10-12)
comment
Keywords: Sharper (TB, LB), Forsberg Twins
Genre: h#
Computer test: WinChloe 3.52
FEN: 1K6/7b/7p/4p1nP/3npPPB/4kP1p/4pp1b/8
Input: hpr, 2021-10-12
Last update: Achim Schöneberg, 2023-12-03 more...
79 - P1402601
Ivan Bryukhanov
2265 Gaudium 252 24/12/2021
P1402601
(3+2)
h#4
b) sSc4
a) 1. Tb4+ Ka7 2. Kc4 Se6 3. Kb3 Ka6 4. Ka4 Sc5#
b) 1. Sb6 Se6 2. Kc4 b3+ 3. Kb5 b4 4. Ka6 Sc7#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2022-07-10)
comment
Keywords: Echo, Forsberg Twins, Ideal mate, Minimal (t), Selfblock, Miniature
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 1K6/8/8/8/2rN4/3k4/1P6/8
Input: Gunter Jordan, 2022-07-10
Last update: Gunter Jordan, 2022-07-10 more...
80 - P1404175
Valery Surkov
Z671 Probleemblad 173 10/2021
P1404175
(5+2) C+
s#7
b)wSa7
a) 1. Tb5! Ke8 2. Tf6! Kd8,Ke7,Kd7 3. Dd6+ Ld7 4. Te5 Kc8 5. Da6+ Kd8,Kc7 6. Da5+ Kc8 7. Tc6+ Lxc6#
3. ... Ke8 4. Df8+ Kd7 5. Td6+ Kc7 6. Tb7+ Lxb7#

b) 1. Tb7! Ke8 2. De5+ Le6 3. Tff7! Kd8 4. Tb8+ Lc8 5. Tf6! Kd7 6. Td6+ Kc7 7. Tb7+ Lxb7#
2. ... Kd8 3. Tb8! Kd7 4. Tf7+ Kd8 5. Tf6! Kd7 6. Td6+ Kc7 7. Tb7+ Lxb7#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2b, Brute Force (2022-09-09)
comment
Keywords: Forsberg Twins, Aristocrat, Minimal (l), Miniature
Genre: s#
FEN: KQbk4/B4R2/8/5R2/8/8/8/8
Reprints: ru_chess_art 20/08/2022
Input: Rainer Staudte, 2022-09-08
Last update: Marcin Banaszek, 2022-09-22 more...
81 - P1404563
Horst Böttger
Bert Kölske

18853 Die Schwalbe 313, p. 449, 02/2022
P1404563
(5+12)
h#3
0.1.1...
b) wLh3 statt wTh3
a) 1. ... e7 2. Te5 Th6 3. Lb8 Sb5#
b) 1. ... dxe4 2. Tb2 Lf1 3. Sb6 Sc6#
play all play one stop play next play all
18853 (Horst Böttger & Bert Kölske). I) 1.– e7 2.Te5 Th6 3.Lb8 Sb5#(MM), II) 1.– d:e4 2.Tb2 Lf1 3.Sb6 Sc6#(MM). „Die weißen Themasteine auf h3 müssen zur Deckung der Felder a6 & b6 (A) bzw. a6 (B) in Stellung gebracht werden, was hier in schöner Analogie jeweils nur durch linienräumende Züge beider Parteien erreicht werden kann: zunächst durchWeiß selbst im Anfangszug und dann durch die Züge von Schwarz, der dabei in seinem Erstzug zugleich den Mattstein (Sd4) entfesselt und im zweiten zugleich ein Fluchtfeld blockt. Gut!“ (HJä). Wir sehen „saubere, fast homogene Linienthematik, die den ganzen Spielplatz einbezieht – prima!“ (RJ). „Neben den differenzierten Entfesselungen glänzt diese schöne Gemeinschaftsaufgabe mit jeweils einer weißen und zwei schwarzen Linienöffnungen“ (MRit). Ähnlich FRd: „Die Öffnung schwarz/weiß maskierter Linien mit vorgeschalteter Öffnung einer weißen Linie durch Schwarz mit Vorabentfesselung des mattsetzenden Springers, schwarzen Blocks und Mustermatts hat mich überzeugt.“ Aber auch Gegensätze ziehen sich an: „Die gefällige Zwillingsbildung führt zu analogem Spiel mit diversen Linienöffnungen und Liniensperren“ (JS), denn „trotz der drastischen Zwillingsbildung läuft alles harmonisch. Auch die Vorwegdeckungen der Felder umden schwarzen König durch 2.– Lf1, 2.– Th6 fügen sich einheitlich ein“ (VZ). Nur bei KHS hielt sich die Begeisterung in Grenzen: „wLh3 und wTh3 müssen ins Spiel gebracht werden, dazu Bivalve. Strategisch war es das auch schon für den doch recht hohen Materialeinsatz. Hm.“ Zum Vergleich Horsts Vorarbeit aus dem Jahre 1981 ohne den vorgeschalteten Bauernzug (siehe Diagramm P0544107): I) 1.Sg2 Th3 2.Lb1 Sb4#, II) 1.Tg2 Lf8 2.Sb3 Sc3#.
Henrik Juel: C+ Popeye 4.61 also (2022-09-22)
comment
Keywords: Forsberg Twins
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: b6q/kn6/3bP3/p1p4r/2nNp1p1/3P3R/6r1/K7
Input: Felber, Volker, 2022-09-22
Last update: Felber, Volker, 2022-09-22 more...
82 - P1404972
Igor Agapov
Moscow tourney 10/2022
Spezielle Ehrende Erwähnung
P1404972
(3+1) C+
#3
b) wSf8
a) 1. Dh5? patt
1. Dd5! Kg6 2. De5 Kh7,Kf7 3. Dg7#

b) 1. Dd5? Kg7!
1. Dh5! Kg7 2. Ke7 ... 3. Dh7#
play all play one stop play next play all
Judge Valery Kirillov
SCHRECKE: Forderung: #3 / Genre: 3#
a)+b): C+, popeye 4.87 (2022-10-08)
comment
Keywords: Miniature, Aristocrat, Forsberg Twins
Genre: 3#
FEN: 5B2/3K4/5k2/8/8/8/8/7Q
Input: Rainer Staudte, 2022-10-08
Last update: Felber, Volker, 2022-11-07 more...
83 - P1406771
Rainer Staudte
Udo Degener

1662 Troll 1 21/12/2022
P1406771
(4+1)
#3
b) wTd7 #6
Henrik Juel: C+ Popeye 4.61 (2022-12-19)
comment
Keywords: Forsberg Twins, Rex solus (s)
Genre: 3#, n#
FEN: 8/3Q4/8/4k1K1/8/1N2P3/8/8
Input: Rainer Staudte, 2022-12-19
Last update: Gunter Jordan, 2022-12-19 more...
84 - P1408182
Wolfgang Pauly
Fata Morgana 1922
P1408182
(2+6)
s#9*
Längstzüger
b) sSg7
* 1. ... Dd1#
a) 1. f4 Dd1+ 2. Kf2 Dh5 3. Ke3 Dd1 4. Ke4 Dh5 5. Kd5 Dd1+ 6. Kc6 Dh5 7. f5+ Dxf5 8. Kb7 Db1+ 9. Ka8 Db8#
b) 1. f4 Dd1+ 2. Kf2 Dh5 3. fxe5 Dd1 4. e6 Dh5 5. exd7 Da5 6. d8=D Dh5 7. Da8 Da5 8. Dg2+ Dg5 9. Kg1 Dxg2#
play all play one stop play next play all
SCHRECKE: a)+b): C+, popeye 4.87 (2023-03-10)
comment
Keywords: Antiphönix (in b), Corner mate (in a), Fata Morgana, Forsberg Twins, Maximummer, Minimal (B), Switchback (d), Promotion (D in b)
Genre: Fairies
FEN: 8/3n2b1/6k1/4p2q/8/7p/5P2/5K2
Reprints: Quartz 56, p. 941, 01/2023
Input: Gunter Jordan, 2023-03-10
Last update: Gunter Jordan, 2023-03-10 more...
85 - P1409137
Ivan Bryukhanov
19238 Die Schwalbe 319, p. 31, 02/2023
P1409137
(4+3)
s#5
b)wLd3 s#6
a) 1. Da6! b5 2. Ka1! b4 3. Ta2+ Kb3 4. Sb1! a3 5. Tb2+ axb2#

b) 1. Sd5! b5 2. Ta2+ Kb3 3. Ta3+ Kxa3 4. Lc2! b4 5. Ka1! b3 6. Lb1! b2#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2c, Brute Force (2023-04-30)
comment
Keywords: Forsberg Twins, Miniature
Genre: s#
FEN: 8/8/1p6/8/p7/k1NQ4/1R6/1K6
Input: Rainer Staudte, 2023-04-30
Last update: Felber, Volker, 2023-09-22 more...
86 - P1409575
Eberhard Schulze
Problem-Forum 15/12/2011
P1409575
(6+6) C+
h#2
b) wLg6
a) 1. Dxg3 Th6 2. Dh3+ Txh3#
b) 1. Dxe4 Le8 2. Dc6 Lxc6#
play all play one stop play next play all
more ...
comment
Keywords: Forsberg Twins, Capture key
Genre: h#
Computer test: Gustav 4.2
FEN: 5r2/8/4R1R1/6p1/2p1Pqn1/5kP1/7B/5K2
Input: Eberhard Schulze, 2023-05-12
Last update: Felber, Volker, 2023-06-23 more...
87 - P1411045
Menachem Witztum
19179 Die Schwalbe 318-1, p. 747, 12/2022
P1411045
(5+10) C+
h#2
b) wTe1 statt wLe1
a) 1. Dxe4 Sa4 2. Td5 Lc3#
b) 1. Dxc3 Sf6 2. Tc5 Te4#
play all play one stop play next play all
19179 (Menachem Witztum). I. 1.D:e4 Sa4 2.Td5 Lc3# (MM). II. 1.D:c3 Sf6 2.Tc5 Te4#. „Für Blocksmüssen abwechselnd weiße Springer dran glauben“ (VZ), denn „nach Schlag des wS blocken sT und sD und erlauben weiße L /T-Matts.“ (JB) „Schwarz muss einen weißen Springer zur Blockbildung schlagen und beseitigt damit die Felddeckung, die Weiß unter Freilegung des Mattfeldes kompensieren muss. Gefiel mir auch ganz gut.“ (FRd) „Funktionswechsel zwischen wSc3 und wSe4, alternierendes Opfer der beiden weißen Springer im Schlüsselzug. Mehr Inhalt sehe ich nicht. Naja.“ (KHS) „Das Motiv der blockenden Springerschläge ist auch mit (dualvermeidend antikritisch) über das zweite Blockfeld hinweg führenden Themazügen schon dagewesen, doch wurde in der Vergleichsaufgabe (s.Diagr. P1411013: 1.D:e2 Sd1 2.Te4 Dc3#, 1.D:c3 Sg1 2.Td4 De2#) zugunsten der Zweispännerschaft undeines zusätzlichen Entfesselungseffektes auf das hier gewährleistete zweite Mustermatt verzichtet.“(MRit)
more ...
comment
Keywords: Forsberg Twins
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 8/5p2/2q5/1r6/3kN1pp/pPNp2r1/5K2/4Bn2
Input: Felber, Volker, 2023-07-21
Last update: Felber, Volker, 2023-07-22 more...
88 - P1414041
Eckart Kummer
Achim Schöneberg

8192 Sachova skladba 92, p. 2155, 07/2006
2. Preis
P1414041
(3+9)
h#3,5
b) wLb5
a) 1. ... Txc5 2. d6 Tc6 3. Kd5 Tb6 4. Kc5 Tb5#
b) 1. ... Lxc4 2. d5 Lb3 3. Kd3 La4 4. Kc4 Lb5#
play all play one stop play next play all
Mattzüge auf das gleiche Feld.
Henrik Juel: C+ Popeye 4.61 also (2023-12-12)
comment
Keywords: Round Trip (T und L), Kniest Theme, Forsberg Twins, x pieces move to one square
Genre: h#
Computer test: C+ Popeye 4.89
FEN: rr6/Np1p4/8/1Rp5/2ppk3/K1p5/8/8
Input: Achim Schöneberg, 2023-12-12
Last update: Gunter Jordan, 2023-12-13 more...
89 - P1414126
Kevin James Begley
F1347 Problem Paradise 102 2023/04
6. Lob
P1414126
(4+4)
h#2

b) wRc6 statt wBc6
c) wRc6 statt wSc6

wSU=Psycho-Springer

a) 1.Kd4 pSf1(=pB) 2.Kd5 pBf3(=pR)#
b) 1.Ke3 pSf1(=pB)+ 2.Ke2 Bb5#
c) 1.Kc4 Sb4 2.Kc3 pSe4(=pB)#
Henrik Juel: Die Schwalbe Märchenschachlexikon says
Psycho: A rotating combination of Rook, Bishop and Knight, which continually surrenders (temporarily) the power last used. Thus, there are three distinct Psycho pieces (separate pieces, not merely states, for Madrasi/Isardam purposes): Psycho-Rook (PR): B+S powers (not R) - last move was orthogonal. Psycho-Bishop (PB): R+S powers (not B) - last move was diagonal. Psycho-Knight (PS): R+B powers (not S) - last move was (2:1) leap. Upon moving, psychos immediately change into: PR after moving orthogonally, PB after moving diagonally, PS after leap. Psychos may not be used for castling. (e.g., Upon moving as Rook, a psycho-Bishop becomes a psycho-Rook, which has the powers of Bishop and Knight: pBa1-a8=pR.) Castling with a psycho is not legal. When any form of psycho is present, promotions to all forms of psycho are allowed. (2023-12-22)
Kevin Begley: FYI: The game of the psycho-Queen (a fairy condition using these units) starts with a psycho-Queen (which starts with all three powers: Rook, Bishop, and Knight, but upon moving it descends into one of the three psycho units described above (psycho-Rook, psycho-Bishop, or psycho-Knight). It can be played on an 8x8 board, though intended for a special board (8 ranks, 10 files, remove the corner squares) inspired by Frank Vigor Morley's "My One Contribution to Chess). There are various pawn promotion options, but I now favor promotion on the last square of the file (7th rank for pawns on an edge file) to psycho-Queen, Rook, Bishop, Knight (but NOT to psycho-Rook, psycho-Bishop, or psycho-Knight). (2023-12-22)
comment
Keywords: Forsberg Twins, Model mate
Genre: Fairies
FEN: 8/1p6/1PR5/8/8/3k2p1/K5*2N1/7n
Input: Kevin Begley, 2023-12-22
Last update: Kevin Begley, 2023-12-22 more...
90 - P1415229
Claus Grupen
Andreas Thoma

2015/60 Schach in Schleswig-Holstein 11/2015
2. ehrende Erwähnung
P1415229
(2+5) C+
h#6
b) sLc2
a) 1. c1=L h4 2. Tg2 h5 3. Tg6 h6 4. Lg5 h7 5. Kg7 Kb2 6. Kh6 h8=D#
b) 1. Lg6 h4 2. Tf2 h5 3. Tf7 Kb2 4. a1=T hxg6 5. Th1 gxf7 6. Th7 f8=D#
play all play one stop play next play all
Yuri Bilokin: Illegal position: no legal last move for White (BTM). (2024-02-22)
comment
Keywords: corner to corner (t in b), Corner mate (in b), Entblockung, Excelsior white, Remote selfblock (2-fach in a), Forsberg Twins, konsekutive Umwandlungen 2 (lD,tD), Line opening, Minimal (B), Model mate, Selfblock (in b), Tempo Loss (in a), Tschumakow Theme, Promotion (D), Promotion in the mating move, under-promotion (l,t), under-promotion key (in a), Miniature
Genre: h#
Computer test: Gustav 4.1 a
FEN: 7k/8/8/8/8/1p6/prp4P/K7
Input: Gunter Jordan, 2024-02-21
Last update: Gunter Jordan, 2024-02-21 more...
91 - P1416039
Valery Surkov
ru_chess_art 25/03/2024
P1416039
(4+3)
s#5
b) wBa6
a) 1. Sb4! Ka4 2. Td5! Kb3 3. Tc5! Ka4 4. Sd3! Kb3 5. Sb2 axb2#

b) 1. a7 Kc2 2. a8=D! Kc1,Kb3 3. Da5! Kc2 4. Dd2+ Kb3 5. Db2+ axb2#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2g, Brute Force (2024-03-25)
comment
Keywords: Forsberg Twins, Change of Sacrifices (D-S), Miniature, Promotion (D in b), Antiphönix (in b), Pawn mate, Corner mate, Model mate, Switchback (k)
Genre: s#
FEN: 8/8/N7/8/3R4/pk6/p7/K3B3
Input: Rainer Staudte, 2024-03-25
Last update: Rainer Staudte, 2024-03-25 more...
92 - P1416040
Ruslan A. Surkow
ru_chess_art 25/03/2024
P1416040
(5+2)
s#4
b)wSa6
a) 1. Lc4! Kc2 2. De5 Kd2 3. Dd4+ Kc2 4. Lb3+ axb3#

b) 1. Sc5! Kc2 2. Df3 Kd2 3. Se4+ Kc2 4. Db3+ axb3#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2g, Brute Force (2024-03-25)
comment
Keywords: Forsberg Twins, Change of Sacrifices (D-L), Minimal (b)
Genre: s#
FEN: 8/8/B7/3Q4/p7/P1k5/K7/R7
Input: Rainer Staudte, 2024-03-25
Last update: Rainer Staudte, 2024-03-25 more...
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