% Francois Labelle & computer, January 30, 2004
% All 8 mirror-symmetric PG-2.5 with exactly 1 solution.
%   0 SPG-2.5
%   8 PG-2.5, SPG-2.0


(Forsyth-Edwards Notation, followed by the same list in ascii diagrams)

PG-2.5, SPG-2.0:

r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR
r1bqkbnr/1ppppppp/n7/p7/P7/N7/1PPPPPPP/R1BQKBNR
rnbqk1nr/pppppp1p/6pb/8/8/6PB/PPPPPP1P/RNBQK1NR
rnbqk1nr/ppppppbp/6p1/8/8/6P1/PPPPPPBP/RNBQK1NR
rnbqkb1r/ppppppp1/7n/7p/7P/7N/PPPPPPP1/RNBQKB1R
rnbqkb1r/ppppp1pp/5n2/5p2/5P2/5N2/PPPPP1PP/RNBQKB1R
rn1qkbnr/pbpppppp/1p6/8/8/1P6/PBPPPPPP/RN1QKBNR
rn1qkbnr/p1pppppp/bp6/8/8/BP6/P1PPPPPP/RN1QKBNR

 _________________ _________________ _________________ _________________ 
|                 |                 |                 |                 |
| r . b q k b n r | r . b q k b n r | r n b q k . n r | r n b q k . n r |
| p p . p p p p p | . p p p p p p p | p p p p p p . p | p p p p p p b p |
| . . n . . . . . | n . . . . . . . | . . . . . . p b | . . . . . . p . |
| . . p . . . . . | p . . . . . . . | . . . . . . . . | . . . . . . . . |
| . . P . . . . . | P . . . . . . . | . . . . . . . . | . . . . . . . . |
| . . N . . . . . | N . . . . . . . | . . . . . . P B | . . . . . . P . |
| P P . P P P P P | . P P P P P P P | P P P P P P . P | P P P P P P B P |
| R . B Q K B N R | R . B Q K B N R | R N B Q K . N R | R N B Q K . N R |
|_________________|_________________|_________________|_________________|
|                 |                 |                 |                 |
| r n b q k b . r | r n b q k b . r | r n . q k b n r | r n . q k b n r |
| p p p p p p p . | p p p p p . p p | p b p p p p p p | p . p p p p p p |
| . . . . . . . n | . . . . . n . . | . p . . . . . . | b p . . . . . . |
| . . . . . . . p | . . . . . p . . | . . . . . . . . | . . . . . . . . |
| . . . . . . . P | . . . . . P . . | . . . . . . . . | . . . . . . . . |
| . . . . . . . N | . . . . . N . . | . P . . . . . . | B P . . . . . . |
| P P P P P P P . | P P P P P . P P | P B P P P P P P | P . P P P P P P |
| R N B Q K B . R | R N B Q K B . R | R N . Q K B N R | R N . Q K B N R |
|_________________|_________________|_________________|_________________|