% Francois Labelle & computer, January 30, 2004
% All 11 mirror-symmetric PG-2.5 with exactly 2 solutions.
%   0 SPG-2.5
%  11 PG-2.5, SPG-2.0


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

PG-2.5, SPG-2.0:

1nbqkbnr/1ppppppp/r7/p7/P7/R7/1PPPPPPP/1NBQKBNR
r1bqkbnr/pppnpppp/8/3p4/3P4/8/PPPNPPPP/R1BQKBNR
rnbqkb1r/ppppnppp/8/4p3/4P3/8/PPPPNPPP/RNBQKB1R
rnbqkbn1/ppppppp1/7r/7p/7P/7R/PPPPPPP1/RNBQKBN1
rnb1kbnr/pp1ppppp/1qp5/8/8/1QP5/PP1PPPPP/RNB1KBNR
rnb1kbnr/pp1ppppp/2p5/q7/Q7/2P5/PP1PPPPP/RNB1KBNR
rnb1kbnr/ppp1pppp/3q4/3p4/3P4/3Q4/PPP1PPPP/RNB1KBNR
rnb1kbnr/ppqppppp/2p5/8/8/2P5/PPQPPPPP/RNB1KBNR
rnbq1bnr/pppkpppp/8/3p4/3P4/8/PPPKPPPP/RNBQ1BNR
rnbq1bnr/pppppkpp/8/5p2/5P2/8/PPPPPKPP/RNBQ1BNR
rnbq1bnr/ppppkppp/8/4p3/4P3/8/PPPPKPPP/RNBQ1BNR

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