Chess Problem Database Server

15 problem(s) found in 2405 milliseconds (displaying 15 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Selbstblock' AND K='Fesselung'] [download as LaTeX]

1 - P1082129
Michel Caillaud
625 Rex Multiplex 07-09/1986
P. Moutecidis gewidmet
1. Preis

(10+3) C+
s#13*

* 1. ... Lxf3#
1. Sf4! Kg1 2. Tc1+ Lf1 3. Le2 Kh1 4. c6 Kg1 5. c7 Kh1 6. c8=D Kg1 7. Dc3 Kh1 8. De1 Kg1 9. Tc5 Kh1 10. Sh3 Kg2 11. Dg3+ Kh1 12. Df3+ Lg2 13. Lc4 Lxf3#
play all

Platzwechsel-Zyklus, White-to-play (Zugwechsel), weiße Umwandlungen, humoristisches Problem. FA=8

paul: Tested by Gustav (brute force) in about 14 hours. (2022-06-30)
comment

Keywords: zyklischer Platzwechsel (BTL), changed blocks, Exchange of roles, Round Trip, Change of Pins, Selfblock, Promotion (D), Antiphönix, Change of Sacrifices, Fata Morgana, Model mate
Genre: s#
FEN: 8/4p3/4P3/2PKP3/2RP2N1/5B1N/6bP/7k
Reprints: F79 FIDE Album 1986-1988 , p. 440, 1995
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2023-10-29 more...

2 - P1340096
Rolf Uppström
1587 Springaren 144 06/2017

(4+4)
h#1
2 Lösungen
Lame

a) wBc1->h7 1. Kh2 h8=D#,h8=T#
b) wBc1->h2 1. gxh2 Sf2#
play all

The condition Lame means that the position is illegal and must be made legal by adding, moving, or removing one man, before White moves. See P1340078.
Veröffentlicht in der Rubrik: "Smasaker och Hugskott"

Henrik Juel: The condition Lame means that the position is illegal and must be made legal by adding, moving, or removing one man, before the stipulated play starts (2017-09-24)
Alfred Pfeiffer: NL nach wBc1->h7: 1. Ld5,..,La8 h8=D,T# (2017-09-25)
A.Buchanan: Is it bPg2? (2024-01-17)
A.Buchanan: I don't know how it is in Swedish, but in English, Lame is a slur. And the acronym doesn't work. I would suggest "Alarm" instead, standing for "Alarm! Legalize by Adding, Removing or Moving". But with only two examples, it's not worth a keyword yet. (2024-01-17)
comment

Keywords: Promotion (in 1), Smothered mate (in 2), pin-mate (in 1), Illegal position, Selfblock (in 2)
Genre: Fairies
FEN: 8/8/8/8/8/2K3p1/2R3b1/2PN2rk
Input: Gunter Jordan, 2017-09-24
Last update: A.Buchanan, 2024-01-17 more...

3 - P1346764
György Bakcsi
14067 Springaren 146 12/2017

(2+12) cooked
ser-h=15

1. Kd5 2. Ke4 3. Kf3 4. Kg2 5. Kh1 6. Lg2 7. Lh3 8. Dg2 9. Dh2 10. g2 11. g3 12. Th4 13. g4 14. Tah5 15. g5 Ke2=
play all

Cook: 1. Kd5 2. Ke4 3. Kf3 4. Kg2 5. Kh1 6. g2 7. Lc8 8. Db8 9. Dh2 10. g3 11. Th4 12. Lh3 13. g4 14. Tah5 15. g5 Ke2=

Vaclav Kotesovec: This problem was marked as C+, but I found a cook. (2023-03-31)
comment

Keywords: Bahnung, black Bristol, Square vacation, pin-stalemate, Model stalemate, Selfblock, Seriesmover, Umnov, Minimal, Homebase
Genre: Fairies
FEN: q7/1b6/2k3pp/r5p1/r5p1/4p1p1/8/R3K1b1
Input: Gunter Jordan, 2018-02-12
Last update: Vaclav Kotesovec, 2023-03-31 more...

4 - P1351509
Rolf Wiehagen
Christer Jonsson
2035 Problemskak 42 04-06/2018

(5+12) C+
h#2
2.1...

1) 1. Lf4 Dg1 2. Txf5+ (exf5+?) Se4#
2) 1. d3 Dxg7 2. exf5+ (Txf5+?) Se6#
play all

Björn Enemark: 1. HM, Problemskak 2017-2018
PR Valery Kopyl (2022-07-20)
comment

Keywords: Discovered check, changed blocks (f5), Dual avoidance, Pinning, pin-mate, Line opening, Model mate, Selfblock
Genre: h#
FEN: 8/6p1/2K1p1rp/2Nr1Nkp/3p3p/7P/6q1/Q1b4b
Input: Gunter Jordan, 2018-06-17
Last update: Gunter Jordan, 2018-06-17 more...

5 - P1382544
Jorma Pitkänen
12069 feenschach 236 07-08/2019

(7+6) C+
s#4

1. La4! g1=S 2. Ld1 Se2 3. Lc5+ Sd4 4. Dxg4 f2#
1. ... g1=L 2. Dxf3+ gxf3 3. Ld1 Lxh2 4. Lxh2 f2#
play all

Henrik Juel: C+ Popeye 4.61 (also)
1... g1=DT+? 2.Sf1+ DTxf1# (2020-11-28)
comment

Keywords: under-promotion B/S, Model mate, Selfblock, Pinning, Pawn mate
Genre: s#
Computer test: Popeye Windows-64Bit v4.69 (7453 MB)
FEN: 8/8/2BB4/8/2R3p1/2RbkpQp/6pN/4K3
Input: Frank Müller, 2020-11-28
Last update: Marcin Banaszek, 2020-11-30 more...

6 - P1392454
Kurt Keller
2021/50 Schach in Schleswig-Holstein 2021/08 08/2021

(4+7) C+
#4

1. Tdg2? a4?
1. ... h2!

1. Tgg2! droht 2. Se3 droht 3. Sf5#
2. ... h2 3. Sf5+ Kh3 4. Txg3#
2. ... hxg2+ 3. Kxg2 a4 4. Sf5#

1. ... h2 2. Td3 a4 3. Ta3 Kh3 4. Txh2#
1. ... hxg2+ 2. Kxg2 a4 3. Se3 a3 4. Sf5#
play all

Liebe Löser, nach der letzten Serie, die es in sich hatte, kommt dieses Mal etwas leichtere sommerliche Kost.
(Winus Müller (Rathjensdorf, Germany): Problemschach, in: Schach in Schleswig-Holstein, 2021-08)

Die Lösung zur Aufgabe 2021/50 (Kurt Keller [Ulm, Germany]) lautet: 1. Tgg2! (ZZ) a4 2. Se3 h:g2 3. K:g2 a3 4. Sf5# oder 2. … h2 3. Sf5+ Kh3 4. T:g3#, sowie 1. ... h2 2. Td3 a4 3. Ta3 Kh3 4. T:h2# und 1. ... h:g2 2. K:g2 a4 3. Se3 a3 4. Sf5#. „Bereits von der Ausgangsstellung her (Drohung g2+) nicht befriedigend!“ (Baldur Kozdon). „Variantenreich mit sehr ansehnlichen Matts. Gefiel mir ausgesprochen gut“ (Claus Grupen). „Optisch ganz nett und mit drei Varianten auch inhaltlich zufriedenstellend, trotz des unterbeschäftigten Turm auf d2“ (Hanspeter Suwe). „Wie bricht man die schwarze Randkegelfestung auf? Das ungedeckte Satzschach 1. … g2+ gibt den Fingerzeig. Der Clou ist die Vorausfesselung 2. Td3!“ (Stephen Rothwell).
(Winus Müller: Problemschach. Lösungen zu SSH 08/2021, in: Schach in Schleswig-Holstein, 2021-10)

Comments:

Yet Another Chess Problem Database https://www.yacpdb.org

A.Buchanan: Hi Kurt thanks for posting this - great stuff! Particularly you are showing how we can raise the bar in terms of html formatting: I will definitely follow your lead. Couple of thoughts...

It's not standard practice to have external clickable links within PDB comment, particularly where the details are replaced by "..." Although stackexchange etc support it, I'm sure they have much more stringent behind-the-scenes security-checking. No problem with having a url though!

And given that YACPDB has about 500K compositions, I don't think we need to indicate that YACPDB contains a particular composition. In the long term, maybe references can be standardized with YACPDB & WinChloe, but in the mean time, if I need to (e.g. suspicious about a diagram) it's easy to check whether a problem appears in one of the other systems. (2021-10-25)
comment

Keywords: Option key, Sacrifice key, Selfblock, Block, Skittles, Skittles setup, Pin, Pinning, Annihilation
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 8/8/8/p5pp/6pk/6pp/3R4/3N2RK
Input: Kurt Keller, 2021-08-04
Last update: A.Buchanan, 2021-10-25 more...

7 - P1399246
Viktor Zheltukhov
9798 Seven Chess Notes 193 02/2022

(5+2) C+
s#9

1. Se1+! Kc3 2. Dc6+ Kb3 3. Tb2+ Ka3 4. Dc5+ Sb4 5. Ka1 Ka4 6. Tb1 Ka3 7. Th5 Ka4 8. Db5+ Ka3 9. Sc2+ Sxc2#
play all

SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-02-19)
comment

Keywords: Aristocrat, Corner mate, Pinning, Miniature, Minimal (s), Model mate, Switchback (Sk), Rücknahme Schlüsselzug, Checking key, Selfblock
Genre: s#
FEN: 8/8/4Q3/3n4/7R/3k4/2N4R/1K6
Input: Gunter Jordan, 2022-02-19
Last update: Marcin Banaszek, 2022-02-21 more...

8 - P1402274
Alexander Fica
2251v Gaudium 251 30/11/2021

(3+6)
h#3
2.1...

1) 1. Ta2 Kc7 2. Ka3 Ta8 3. Lb3 Lxc5#
2) 1. Kb4 Lb6 2. Lb3 Te5 3. c4 La5#
play all

Lösungsbesprechung: Tschumakow mit Umnoweffekten. "Aus der indirekten Fesselung des sSc4 wird eine direkte. Boros-Thema?" [KHS] "Boros-Thema mit zwei Mustermatts." [HK] "Ich hatte auch in der zweiten Lösung das Fesselungsmotiv erwartet." [ES] "Der sK ist schon vom Stand weg fast eingemauert." [CG] BK schlägt dem Autor eine um 2 Steine abgespeckte Version vor: h#3, 2 Lös., W.: Kb8 Te8 La7 (3), S.: Kb3 Db2 Ta3 Le6 Sa4 Bc5 (6).
Diese Fassung akzeptierte der Autor in Gaudium 254 (28/02/2022), Seite 4. Nur diese Fassung nimmt am Informalturnier teil (das Diagramm und die Lösungen sind bereits korrigiert).

Yuri Bilokin: more economical, the black rook on the third rank can be replaced by a black pawn
1K2R3/B7/4b3/2p5/n7/pk6/1q6/8 (3+6) h#3 2.1…
1.a2 Kc7 2.Ka3 Ra8 3.Bb3 Bxc5# (MM)
1.Kb4 Bb6 2.Bb3 Re5 3.c4 Ba5# (MM)
Ambush (wR) × 2
Check prevention (W-W)
Hideaway (wK)
Chumakov's topic is not in the problem (2022-06-27)
Henrik Juel: C+ Popeye 4.61 also (2022-10-23)
more ...
comment

Keywords: pin-mate (in 1), Model mate, Selfblock, Tschumakow Theme, Umnov
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 1K2R3/B7/4b3/2p5/n7/rk6/1q6/8
Input: Gunter Jordan, 2022-06-27
Last update: Gunter Jordan, 2022-10-23 more...

9 - P1404970
Godfrey F. Heathcote
Counties Chess Association 1893
2. Preis
Scholastic Globe 1893

(11+9) C+
#2

1. Tc4! Lc7 2. Sc5#
1. ... Ld6 2. Txd4#
1. ... Td7 2. Df5#
1. ... Td6 2. Sg3#

1. ... Le5 2. Df3#
1. ... Lf4 2. Sf2#
1. ... Td5 2. De2#
play all

more ...
comment

Keywords: Zugzwang-Goal, Line closure (vierfach), Selfblock (dreifach), pin-mate (zweifach)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 1bqr4/1p6/1P3P2/P6Q/R2pk3/1N1r4/Kp1P3p/1B3R1N
Reprints: 9 Versunkene Schätze , p. 16, 1998
Input: Dieter Berlin, 2022-10-07
Last update: Dieter Berlin, 2022-10-07 more...

10 - P1407400
Oswaldo Faria
Caetano Belliboni
2836 Thema Danicum 10/1984

(3+3) C+
s#5
Längstzüger
Circe

1. Th1! Th7 2. Txh7[+sTa8]+ Kg8 3. Ta7 Tf8 4. Ta8 Txa8[+wTh1] 5. Tb1 Txa2#
play all

Gunter Jordan: Ein herrliches, vergnügliches Problem! (2023-01-22)
comment

Keywords: Circe, Maximummer, Switchback, Schlüssel = Eckzug, Opferbahnung, corner to corner (T), Round Trip (T-5), Selfblock, Rücknahme Schlüsselzug, Pinning, Corner mate, Model mate
Genre: Fairies
Computer test: Popeye Windows-32Bit v4.79
FEN: 7k/8/8/1p6/8/8/P6r/KR6
Input: HBae, 2023-01-22
Last update: Gunter Jordan, 2023-01-22 more...

11 - P1407730
Mark Kirtley
The Problemist Supplement 2021

(5+16) C+
ser-s#7
b) wSg4->h4

a) 1. Lb2 2. Lbxg7 3. Lf6 4. Lh4 5. Tg5 6. De4 7. S4f6+ Sxf6#
b) 1. Dxg7 2. Sg6 3. S6xe7 4. Sxg8 5. Kh6 6. Th5 7. Sf6 Dxf6#
play all

Matts auf dem gleichen Feld.

Olaf Jenkner: Das schöne Diagramm wird mit sieben Nachtwächtern links oben erkauft.
Vergleiche mit P1403608 (2023-02-11)
more ...
comment

Keywords: Pinning, pin-mate (in b), Homebase (s), Line closing, Capture key (in b), Selfblock, selfpinning (in b), Seriesmover, Twin
Genre: Fairies
Computer test: H. Juel: Popeye 4.61
FEN: rnbqkbnr/pppppppp/6Q1/5R1K/6N1/B7/8/8
Reprints: zu 19063 Die Schwalbe 319, p. 56, 02/2023
Input: Gunter Jordan, 2023-02-10
Last update: Olaf Jenkner, 2023-02-11 more...

12 - P1408711
George P. Sphicas
8028 Phénix 2017
1. Preis
PR Tadashi Wakashima

(6+8) cooked
ser-h=27

1. f1=T 2. Tf2 3. Tb2 4. f2 5. f1=S 6. Sd2 7. f3 8. f2 9. f1=L 10. Ld3 11. Lb1 12. Sc2 13. f4 14. f3 15. f2 16. f1=D 17. D1f4 18. Dxd6 19. Dc7 20. f5 21. f4 22. f3 23. f2 24. f1=L 25. Lc4 26. Lca2 27. b3 Dxc7=
play all

Cook: Paul Raican:
1. f1=T 2. Tf2 3. Tb2 4. f2 5. f1=S 6. Sd2 7. f3 8. f2 9. f1=D 10. Df4 11. Dxd6 12. f4 13. Dc7 14. f3 15. f2 16. f5 17. f1=L 18. Ld3 19. Lb1 20. Sc2 21. f4 22. f3 23. f2 24. f1=L 25. Lc4 26. Lca2 27. b3 Dxc7=

more ...
comment

Keywords: Allumwandlung, black, Unpinning, pin-stalemate, konsekutive Umwandlungen 5 (tsldl), Liniensperrung, Model stalemate, Check Protection, Selfblock, Promotion (d), Promotions to bishops, under-promotion (tlls), Seriesmover, Antiphönix
Genre: Fairies
FEN: 8/8/1P1P1pKB/5p1B/1p3p2/n4p2/5p1Q/2k5
Input: Gunter Jordan, 2023-04-05
Last update: Olaf Jenkner, 2024-02-25 more...

13 - P1408962
George P. Sphicas
8123 Phénix 2017
2. ehrende Erwähnung
PR Tadashi Wakashima

(4+10) C+
ser-h=23

1. d1=T 2. Td2 3. Ta2 4. d2 5. d1=D 6. Dd4 7. Da1 8. d4 9. d3 12. d2 11. d1=S 12. Sb2 13. Kb1 14. Lc1 15. e3 16. e2 17. e1=S 18. Sc2 19. g5 20. g4 21. g3 22. g2 23. h1=L Dg1=
play all

Olaf Jenkner: Wirklich C+ ?? (2024-02-25)
comment

Keywords: Allumwandlung, black, Entblockung, Remote selfblock, pin-stalemate, konsekutive Umwandlungen 5 (tdssl), Liniensperrung, Model stalemate, Rückkehr nach Umwandlung, Check Protection, Selfblock, Seriesmover, Umnov, Promotion (d), Exchange of Promotions, under-promotion (tls), under-promotion key (b/t)
Genre: Fairies
FEN: KR6/7B/6p1/3p4/p3p3/p2pb3/3p1Q1p/2k5
Input: Gunter Jordan, 2023-04-18
Last update: Gunter Jordan, 2023-04-18 more...

14 - P1410805
Rolf Kohring
F1224 Probleemblad 2018
Lob
PR Dolf Wissmann

(4+7)
ser-h#31
Alphabetschach

1. Ka2 2. Ka3 3. Ka4 4. Kb5 5. a4 6. a3 7. a2 8. a1=L 9. Lb2 10. Lba3 11. Lab4 12. La5 13. Lab6 14. Kc6 15. Lf2 16. Kd6 17. Sf4 18. Ke6 19. Kf6 20. e5 21. Lh4 22. Se6 23. Lc5 24. Lf8 25. Kg6 26. Lxh6 27. Tf5 28. Tf8 29. Tg8 30. Kh7 31. Sg7 Txh6#
play all

Henrik Juel: C+ Popeye 4.61 (2023-07-07)
comment

Keywords: Alphabetic Chess, Remote selfblock, Change of Pins, Liniensperrung, Model mate, Rückkehr nach Umwandlung (b/l), Check Protection, Selfblock, selfpinning, Seriesmover, under-promotion (l)
Genre: Fairies
FEN: 8/4p3/R6P/p1b3r1/4K3/3n3r/3B4/k7
Input: Gunter Jordan, 2023-07-07
Last update: Gunter Jordan, 2023-07-07 more...

15 - P1414507
Udo Degener
Mirko Degenkolbe
Rolf Wiehagen
1208 mpk-Blätter 157 01/2024
Inge Groth gewidmet

(6+6)
h#2
b) sKd5->e5

a) 1. Sf3 Lxf6 2. Sxc5 Td4#
b) 1. Sc3 Lxc6 2. Sxf5 Te4#
play all

(MDxxxx)
Henrik Juel: C+ Popeye 4.61 also (2024-01-15)
comment

Keywords: Model mate, Twin, Line opening, Unpinning, Pinning, Selfblock, pin-mate, Exchange of roles (L-L s-s)
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 5K2/8/2p2p2/2Pk1P2/1R1nn3/1p6/8/B6B
Input: Felber, Volker, 2024-01-15
Last update: Gunter Jordan, 2024-03-10 more...

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

HBae (2)
Gunter Jordan (9)
Frank Müller (1)
Kurt Keller (1)
Dieter Berlin (1)
Felber, Volker (1)