Die Schwalbe

2 problem(s) found in 2110 milliseconds (displaying 2 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Alphabetschach']

1 - P1380522
Vaclav Kotesovec
FB1893 StrateGems 90 2020
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].

Solver's comment: "Fantastic ABC problem with three mates." (Wilfried Seehofer)
more ...
comment
Keywords: Chameleonecho, 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: Alfred Pfeiffer, 2020-10-16 more...
2 - P1382488
Andrew Buchanan
Thomas Thannheiser

1509 Julias Fairies 25/05/2020
P1382488
(13+15) C+
PG in 8.5
Alphabetic Chess
Aims to be the shortest SPG for a homebase position which demonstrates this fairy condition.
Henrik Juel: I cheated and used Jacobi
Nice condition-specific manouver by Sb1 (2020-11-26)
comment
Keywords: Unique Proof Game, Homebase (2), Alphabetic Chess, Economy record (Alphabetic homebase)
Genre: Retro, Fairies
Computer test: Jacobi v0.4.7
FEN: rnbqkbnr/1ppppppp/8/8/8/8/2PPPPPP/1NBQKBNR
Input: A.Buchanan, 2020-11-26
Last update: A.Buchanan, 2020-11-26 more...
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The problems of this query have been registered by the following contributors:

Vaclav Kotesovec (1)
A.Buchanan (1)