Die Schwalbe

4 problem(s) found in 6154 milliseconds (displaying 4 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT A='Surkow, Waleri A.' AND K='nur eine Steinart'] [download as LaTeX]

1 - P1380522
Vaclav Kotesovec
FB1893 StrateGems 90 2020
1. Lob
P1380522
(5+1) C+
h#9
Alphabetschach
3.1.1...
wDU=Grashüpfer
1) 1. Kb5 Gc6 2. Kc4 Gc3 3. Kd5 Gf3 4. Ke6 Gf4 5. Kf6 Ge4 6. Kg5 Ke2 7. Kh4 Kf2 8. Kh3 Gg2 9. Kh2 Gg3#
2) 1. Kb4 Gc4 2. Kb3 Gc8 3. Kc2 Gf4 4. Kd1 Ge4 5. Ke1 Kf3 6. Kf1 Ge6 7. Kg1 Gf5 8. Kh2 Gg3+ 9. Kh3 Gg4#
3) 1. Kb6 Ga5 2. Kc6 Gd7 3. Kd5 Gd4 4. Ke6 Gf5 5. Kf7 Gf6+ 6. Kg6 Ge4+ 7. Kh6 Kf4 8. Kh5 Gg4 9. Kh4 Gg5#
play all play one stop play next play all
Triple exact echoes with shift [0,1].

Judge Shankar Ram (StrateGems 97/2022, p. 14-19): "Three long trips by the black King to reach the h-file resulting in three concurrent exact echoes with bK on h2, h3 and h4."

Solver's comment: "Fantastic ABC problem with three mates." (Wilfried Seehofer)
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comment
Keywords: Chameleon Echo, Aristocrat, Rex solus (s), Alphabetic Chess, just one species, Miniature
Pieces: du = Grasshopper (G)
Genre: Fairies
Computer test: Popeye 4.61
FEN: 8/2*2Q5/8/k3*2Q3/*2Q7/4K3/8/4*2Q3
Input: Vaclav Kotesovec, 2020-10-01
Last update: Vaclav Kotesovec, 2021-12-29 more...
2 - P1381190
Ulrich Auhagen
A Deutsche Schachzeitung 02/1986
P1381190
(4+1) C+
#2
1. Dg8! Ke5 2. Dd4#
1. ... Ke7 2. Ddd8#
play all play one stop play next play all
more ...
comment
Keywords: Non-standard material, Rex solus (s), just one species
Genre: 2#
Computer test: Popeye 4.61
FEN: 8/8/5k2/8/8/4K3/Q7/1Q1Q4
Input: Rainer Staudte, 2020-10-21
Last update: Alfred Pfeiffer, 2020-10-21 more...
3 - P1392139
Daniele Gatti
Phénix 316 03/2021
5. Lob
Yves Tallec Memorial
P1392139
(10+2) C+
s#20
1. Sf2-g4+! Kh6-g5 2. Sc5-e4+ Kg5-h4 3. Sg1-f3+ Kh4-h3 4. Sh5-f4+ Se2xf4 5. Se4-f2+ Kh3-g3 6. Sf2-h1+ Kg3-h3 7. Sf3-g1+ Kh3-h4 8. Se7-f5+ Kh4-g5 9. Sd4-f3+ Kg5-g6 10. Sg4-e5+ Kg6-f6 11. Se5-d7+ Kf6-g6 12. Sf5-e7+ Kg6-h6 13. Se7-g8+ Kh6-g6 14. Sf3-e5+ Kg6-g5 15. Sd6-e4+ Kg5-h4 16. Sg7-f5+ Kh4-h5 17. Se4-f6+ Kh5-g5 18. Sf6-h7+ Kg5-h5 19. Sf5-g7+ Kh5-h4 20. Se5-g6+ Sf4xg6#
play all play one stop play next play all
Judge Michel Caillaud
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comment
Keywords: Non-standard material, just one species, Aristocrat, Minimal (s)
Genre: s#
Computer test: Popeye 4.61, with 'opt thr 0 non 0 1' found no flaws
FEN: 7K/4N1N1/3N3k/2N4N/3N4/4N3/4nN2/6N1
Input: Marcin Banaszek, 2021-07-26
Last update: Marcin Banaszek, 2022-08-08 more...
4 - P1414331
Vaclav Kotesovec
S15 Phénix 338, p. 13166, 2023
P1414331
(5+1) C+
h#6
0.4.1.1...
sSL=Scarabäus
1. ... SCde6 2. Ke4 SCg6 3. Kf5 SCc7+ 4. Kg6 SCe4 5. Kh7 SCf6+ 6. Kh8 SCf7#
1. ... SCc6 2. Kd3 SCf4 3. Ke2 SCg1 4. Kf2 SCe4+ 5. Kg1 SCf3+ 6. Kh1 SCg3#
1. ... SCc4 2. Kc3 SCd5+ 3. Kc2 SC1a3 4. Kb3 SCd4+ 5. Ka2 SCc3+ 6. Ka1 SCb3#
1. ... SCf5 2. Kd5 SCf2 3. Kc5 SCfa6 4. Kb6 SCd5+ 5. Ka7 SCc6+ 6. Ka8 SCc7#
play all play one stop play next play all
Published in the article by Sébastien Luce: "Le charme du Scarabée", Phénix 338/2023, p.13164-13168 with a comment: "Cinq Scarabées au minimum sont nécessaires pour mater un Roi seul. Le S15 est un nouveau quadruple écho étonnant de Václav."

Beetle (scarabée) was invented in 1970 by the French composer Roméo Bédoni. Only WinChloe is able to test such problems (not implemented in Popeye either in Alybadix).
Henrik Juel: From the Schwalbe Märchenschachlexikon
Skarabäus: Ähnlich dem geknickten Grashüpfer, nur macht der Skarabäus hinter dem Sprungbock einen 1:2-Sprung in ähnlicher Richtung wie er auf den Sprungbock hinzieht. Von a1 mit Sprungbock auf d4, erreicht er e6 und f5; von d1 mit Sprungbock auf d4, erreicht er c6 und e6. (2024-01-03)
comment
Keywords: Aristocrat, Chameleon Echo, Four corners, just one species, Rex solus (s)
Pieces: sl = Scarabäus (SC)
Genre: Fairies
Computer test: WinChloe
FEN: 8/8/3*3N4/4*3N3/3k4/8/1*3N6/1*3N1*3N4
Input: Vaclav Kotesovec, 2024-01-03
Last update: Vaclav Kotesovec, 2024-01-03 more...
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The problems of this query have been registered by the following contributors:

Vaclav Kotesovec (2)
Rainer Staudte (1)
Marcin Banaszek (1)