17 problem(s) found in 3047 milliseconds (displaying 17 problem(s)). [COMMENTDATE>=20200919 AND NOT S='Allgemeine Zeitung Chemnitz' AND A='Zujevas, Nikolajus'] [download as LaTeX]
1. Lb5 Kb3 2. Lc3 Ka3 3. Lxb2+ Kb3 4. Kc1 Kxa2 5. Lc4#
Keywords: Miniature Collection (0328777)
Genre: n#
FEN: 8/8/8/B7/B7/k7/Np6/1K6
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
Genre: n#
FEN: 8/8/8/B7/B7/k7/Np6/1K6
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
1. Tg7! Ka6 2. c8=D,L#
1. ... Kc6 2. c8=D,T#
1. ... Ka8 2. c8=D,T#
1. ... Kc8 2. Sd6#
1. ... Kc6 2. c8=D,T#
1. ... Ka8 2. c8=D,T#
1. ... Kc8 2. Sd6#
1. Ld3-e4!
Rosalie Fay: 1. Le4 zz Kb6 2. Kd3 zz Ka6 3. Kc4 zz Kb6 4. Sc8+ Ka6 5. Sc7#
C+ Popeye Windows-64Bit v4.69 (2023-12-20)
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C+ Popeye Windows-64Bit v4.69 (2023-12-20)
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Keywords: Miniature Collection (0357203)
Genre: n#
FEN: 8/8/k2N4/1N6/1P6/3B4/4K3/8
Input: Felber, Volker, 2010-09-12
Last update: Felber, Volker, 2010-09-12 more...
Genre: n#
FEN: 8/8/k2N4/1N6/1P6/3B4/4K3/8
Input: Felber, Volker, 2010-09-12
Last update: Felber, Volker, 2010-09-12 more...
a) 1. Sd1;
b) 1. Lf7
b) 1. Lf7
Rosalie Fay: a) 1. Sd1 (droht 2. Sf2) Kh5 2. Se3 f4 3. Tf7+ Kh6 4. Lg6 fxe3 5. g4 ~ 6. g5#
Pawn mate
b) 1. Lf7 (droht 2. Lg6) Kh7 2. Sg6 f4 3. Sf8+ Kh8 4. Kg6 ~ 5. Kh6 ~ 6. Sg6#
C+ Popeye Windows-64Bit v4.69 (2023-12-19)
comment
Pawn mate
b) 1. Lf7 (droht 2. Lg6) Kh7 2. Sg6 f4 3. Sf8+ Kh8 4. Kg6 ~ 5. Kh6 ~ 6. Sg6#
C+ Popeye Windows-64Bit v4.69 (2023-12-19)
comment
Keywords: Miniature Collection (0337762)
Genre: n#
FEN: 6B1/8/5K1k/5p2/8/6P1/5N2/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Zuncke/Bruder, 2010-09-12 more...
Genre: n#
FEN: 6B1/8/5K1k/5p2/8/6P1/5N2/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Zuncke/Bruder, 2010-09-12 more...
1... Kxe5 (1... Kxg5 2. Lg3 Kf5 3. Td5#) ((Satz:) 1... -- 2. Sh3 Kxe5 3. Td5#) 2. Se6 Kf5 3. Td5#
Cook: R: 1. Ke6-f5 Sf7-g5++ So position is legal with WTM
Cook: R: 1. Ke6-f5 Sf7-g5++ So position is legal with WTM
FO3LS RA2
A.Buchanan: I don't see how to correct this pleasant problem, while retaining miniature status, the retro logic + the model mates. With an extra Black pawn, I found 8/2p5/2N3K1/8/4BkN1/3R4/5P2/8. With just 7 units, I seemed to need non-standard material, e.g. 8/5B2/5K2/8/4BkN1/3R4/5P2/8. If anyone manages to salvage this one successfully, pls let me know. (2021-10-08)
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A.Buchanan: I don't see how to correct this pleasant problem, while retaining miniature status, the retro logic + the model mates. With an extra Black pawn, I found 8/2p5/2N3K1/8/4BkN1/3R4/5P2/8. With just 7 units, I seemed to need non-standard material, e.g. 8/5B2/5K2/8/4BkN1/3R4/5P2/8. If anyone manages to salvage this one successfully, pls let me know. (2021-10-08)
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Keywords: Miniature Collection (0314232), No legal last move for Black, Miniature
Genre: 2#, Retro
FEN: 6B1/6K1/8/4BkN1/3R4/5P2/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2021-10-07 more...
Genre: 2#, Retro
FEN: 6B1/6K1/8/4BkN1/3R4/5P2/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2021-10-07 more...
1. Dg2! a2 2. Dxa2#
1. ... Kb3 2. Dc2#
1. ... b3 2. De4#
1. ... Kb3 2. Dc2#
1. ... b3 2. De4#
Genre: 2#
Computer test: Popeye 4.61
FEN: 8/8/8/2R3p1/kp4K1/p6Q/8/8
Input: Rainer Staudte, 2020-10-06
Last update: Alfred Pfeiffer, 2020-10-07 more...
1. f3! d3 2. De4#
1. ... e5 2. Da2#
1. ... e6 2. Db5#
1. ... e5 2. Da2#
1. ... e6 2. Db5#
1. Lg4! Kg5 2. Tf5+ Kh6 3. Th5#
1. ... g5 2. Sh5 Kg6 3. Tf6#
1. ... g6 2. Se6 g5 3. Tf6#
1. ... g5 2. Sh5 Kg6 3. Tf6#
1. ... g6 2. Se6 g5 3. Tf6#
1. Kd5! Kb5 2. Te3 Ka6 3. Kc6 Ka7 4. Te8 Ka6 5. Ta8#
2. ... Kb4 3. Kd4 Kb5 4. Te6 ... 5. Tb6#
2. ... Kb4 3. Kd4 Kb5 4. Te6 ... 5. Tb6#
a) 1. Ld5! Kc8 2. c6 Kb8 3. Lb6 Ka8,Kc8 4. Se7 Kb8 5. c7#
b) 1. Sf7! Kf6 2. Ld8+ Kg6 3. Le8 Kh5 4. Se5+ Kh6 5. Sg4#
b) 1. Sf7! Kf6 2. Ld8+ Kg6 3. Le8 Kh5 4. Se5+ Kh6 5. Sg4#
11 - P1387012
Antanas Vilkauskas
Nikolai Zujew
E770 SuperProblem (Website) 23/05/2019
(3+9) C+
h#5
2.1...
Antanas Vilkauskas
Nikolai Zujew
E770 SuperProblem (Website) 23/05/2019
(3+9) C+
h#5
2.1...
1) 1. e1=T+ Tf1 2. Te4 Kxg2 3. Kd4 Td1+ 4. Ke3 Kf1 5. Lf4 Td3#
2) 1. Lc6 Txg4 2. Lb5 Kxg2 3. Lf4 Kf3 4. Kc4 Kxf4 5. c5 Ke5#
2) 1. Lc6 Txg4 2. Lb5 Kxg2 3. Lf4 Kf3 4. Kc4 Kxf4 5. c5 Ke5#
A.Buchanan: 1) We really need a better way to tag individual solutions. The comma normally separates phases e.g. promotion(S,T), and we should logically extend this. If there is a parameter, then this can be done elegantly as e.g. promotion(,T), but if there is no parameter, then what to do? Maybe e.g. "model mate(@,)" What do you think?
2) Proliferation of keywords is all very clever, but until they are populated, they are useless, and overlapping ones without an overall plan are very counter-productive. So here we see *four* over-specialized keywords for discovered checks. It's not trivial to fix, so please let's not dig the hole any deeper.
3) Under-promotion is only meaningful for direct mates and studies (and even there is redundant with parameters). I will always remove it in help & self compositions if I comes to my attention, and ultimately hope Gerd can run some script to replace all inappropriate occurrences.
4) Please can someone provide descriptions for Selfblock and Tschumakow.
Thanks so much! :D (2021-03-06)
Viktoras Paliulionis: Definitions of Self-block and Chumakov:
http://helpman.komtera.lt/definition/Self-block
http://helpman.komtera.lt/definition/Chumakov_theme (2021-03-06)
A.Buchanan: Thanks for these definitions. In the end, PDB should have automatic discovery of as many keyword assignments as possible, like Helpmate Analyzer and WinChloe do today. Gerd is just beginning to explore this for very simple stuff, but it presupposes for most keywords that the solutions are known.
Selfblock: "The opposite side takes advantage of it." What does this mean exactly in the context of help stipulations, or where the non-mating K is blocked?
Chumakov/Tschumakow Theme:
The qualifiers "basic" & "simplified" are misleading. The underlying weakness is a failure to name the atom of Chumakov: a single unit which behaves differently in different phases. So-called "basic" is really "doubled", and so-called "simplified" is "symmetric".
"Belfort" suffers from the same refusal to identify the singular, and only accept talking in plurals. The Belfort Theme in some random tourney a long time ago was defined on more than one piece exhibiting the property, but one really wants to talk of a Belfort piece, even though a single Belfort piece is nothing to celebrate. But from a *naming* point of view, we should have it. (2021-03-07)
Viktoras Paliulionis: This definition of selfblock is generic. In the case of a helpmate, it is important that the piece that moved to the king's field is actually needed in the mating position as a blocker. Otherwise, if the king’s field is guarded by White, then the move to this field is not a selfblock, the motive for such move may be, for example, line-closing or hideaway (the piece could be removed in the final position without affecting the mate).
Selfblocking can also occur in White's play, but only as a negative effect (AntiZielElement) followed by an unblocking (selfblock/unblock). (2021-03-08)
Viktoras Paliulionis: Only the first form is the real theme of Chumakov. Such a definition of the theme is found in most sources. Additionally, the theme can have a double form (2+2), (3+3) or even (4+4).
The second interpretation of the theme also is used, but actually it is a different theme, it is just an exchange of functions (captured/selfblock). This is a simpler theme to implement, that's why I called it "simplified Chumakov". (2021-03-10)
Yuri Bilokin: Currently there is no Chumakov topic in this problem (2022-05-04)
more ...
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2) Proliferation of keywords is all very clever, but until they are populated, they are useless, and overlapping ones without an overall plan are very counter-productive. So here we see *four* over-specialized keywords for discovered checks. It's not trivial to fix, so please let's not dig the hole any deeper.
3) Under-promotion is only meaningful for direct mates and studies (and even there is redundant with parameters). I will always remove it in help & self compositions if I comes to my attention, and ultimately hope Gerd can run some script to replace all inappropriate occurrences.
4) Please can someone provide descriptions for Selfblock and Tschumakow.
Thanks so much! :D (2021-03-06)
Viktoras Paliulionis: Definitions of Self-block and Chumakov:
http://helpman.komtera.lt/definition/Self-block
http://helpman.komtera.lt/definition/Chumakov_theme (2021-03-06)
A.Buchanan: Thanks for these definitions. In the end, PDB should have automatic discovery of as many keyword assignments as possible, like Helpmate Analyzer and WinChloe do today. Gerd is just beginning to explore this for very simple stuff, but it presupposes for most keywords that the solutions are known.
Selfblock: "The opposite side takes advantage of it." What does this mean exactly in the context of help stipulations, or where the non-mating K is blocked?
Chumakov/Tschumakow Theme:
The qualifiers "basic" & "simplified" are misleading. The underlying weakness is a failure to name the atom of Chumakov: a single unit which behaves differently in different phases. So-called "basic" is really "doubled", and so-called "simplified" is "symmetric".
"Belfort" suffers from the same refusal to identify the singular, and only accept talking in plurals. The Belfort Theme in some random tourney a long time ago was defined on more than one piece exhibiting the property, but one really wants to talk of a Belfort piece, even though a single Belfort piece is nothing to celebrate. But from a *naming* point of view, we should have it. (2021-03-07)
Viktoras Paliulionis: This definition of selfblock is generic. In the case of a helpmate, it is important that the piece that moved to the king's field is actually needed in the mating position as a blocker. Otherwise, if the king’s field is guarded by White, then the move to this field is not a selfblock, the motive for such move may be, for example, line-closing or hideaway (the piece could be removed in the final position without affecting the mate).
Selfblocking can also occur in White's play, but only as a negative effect (AntiZielElement) followed by an unblocking (selfblock/unblock). (2021-03-08)
Viktoras Paliulionis: Only the first form is the real theme of Chumakov. Such a definition of the theme is found in most sources. Additionally, the theme can have a double form (2+2), (3+3) or even (4+4).
The second interpretation of the theme also is used, but actually it is a different theme, it is just an exchange of functions (captured/selfblock). This is a simpler theme to implement, that's why I called it "simplified Chumakov". (2021-03-10)
Yuri Bilokin: Currently there is no Chumakov topic in this problem (2022-05-04)
more ...
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Keywords: discovered checkmate (in 2), Battery creation (in 2), Batteriematt horizontal (in 2), Königsbatterie (in 2), Model mate (in 1), Checking key (in 1), Selfblock, Promotion key (t,), Tschumakow Theme
Genre: h#
Computer test: C+ Popeye 4.61
FEN: b7/2p5/3b4/2k5/5Rp1/2p3p1/2P1p1p1/6K1
Input: Gunter Jordan, 2021-03-05
Last update: A.Buchanan, 2021-03-06 more...
Genre: h#
Computer test: C+ Popeye 4.61
FEN: b7/2p5/3b4/2k5/5Rp1/2p3p1/2P1p1p1/6K1
Input: Gunter Jordan, 2021-03-05
Last update: A.Buchanan, 2021-03-06 more...
1. Dg2! d2 2. Dxd2#
1. ... c3 2. De4#
1. ... Kc3 2. Db2#
1. ... Ke3 2. Lc5#
1. ... c3 2. De4#
1. ... Kc3 2. Db2#
1. ... Ke3 2. Lc5#
Genre: 2#
FEN: Q7/8/8/5K2/2pk4/B2p4/8/8
Input: Rainer Staudte, 2021-03-06
Last update: Rainer Staudte, 2021-03-06 more...
1. Kd7! d3 2. Dxd3#
1. ... e4 2. Db5#
1. ... e4 2. Db5#
14 - P1414433
Nikolai Zujew
10838 Seven Chess Notes 216, p. 19, 01/2024
(3+2) C+
h#2
Zero
a) wKg1->g5
b) wKg1->f6
c) wKg1->e1
d) wTb2->b4
Nikolai Zujew
10838 Seven Chess Notes 216, p. 19, 01/2024
(3+2) C+
h#2
Zero
a) wKg1->g5
b) wKg1->f6
c) wKg1->e1
d) wTb2->b4
a) 1. Le4 Th8 2. Kf3 Th3#
b) 1. Lc4 Ke5 2. Kd3 Tf3#
c) 1. Lc2 Tb4 2. Kd3 Tf3#
d) 1. Le2 Th8 2. Kf3 Th3#
b) 1. Lc4 Ke5 2. Kd3 Tf3#
c) 1. Lc2 Tb4 2. Kd3 Tf3#
d) 1. Le2 Th8 2. Kf3 Th3#
Keywords: Aristocrat, Minimal (l), Miniature
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 5R2/8/8/8/8/3bk3/1R6/6K1
Input: Felber, Volker, 2024-01-11
Last update: Felber, Volker, 2024-01-13 more...
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 5R2/8/8/8/8/3bk3/1R6/6K1
Input: Felber, Volker, 2024-01-11
Last update: Felber, Volker, 2024-01-13 more...
1. Ke5 Td7 2. Kf6 Lh5 3. e5 Tf7#
1. Lb7 Kd1 2. Lf3 Kc1 3. Lxe2 Kb1 4. Ld3 Kc1 5. Tf1#
1. Da5! droht 2. Tb8#
1. ... Sxb6 2. Sc5#
1. ... Kxa8 2. Dd5#
1. ... Sxb6 2. Sc5#
1. ... Kxa8 2. Dd5#
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The problems of this query have been registered by the following contributors:
Zuncke/Bruder (4)Felber, Volker (4)
Rainer Staudte (8)
Gunter Jordan (1)
SCHRECKE: C+, Gustav 4.2b, Brute Force (2023-02-06)
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