% Francois Labelle & computer, January 30, 2004 % All 109 mirror-symmetric PG-4.5 with exactly 2 solutions. % 86 SPG-4.5 % 22 PG-4.5, SPG-4.0 % 1 PG-4.5, SPG-3.0 (Forsyth-Edwards Notation, followed by the same list in ascii diagrams) SPG-4.5: Qnb1kbnr/1p1ppppp/2p5/8/8/2P5/1P1PPPPP/qNB1KBNR r1bqkbnr/pppnppp1/3p4/8/8/3P4/PPPNPPP1/R1BQKBNR r1bqkbnr/pppnppp1/8/3p4/3P4/8/PPPNPPP1/R1BQKBNR r1bqkbnr/pppn1ppp/3p4/8/8/3P4/PPPN1PPP/R1BQKBNR r1bqkbnr/pp1npppp/3p4/8/8/3P4/PP1NPPPP/R1BQKBNR rn2kbnr/ppp1pppp/3pb3/8/8/3PB3/PPP1PPPP/RN2KBNR rn2kbnr/ppp1pppp/3p3B/8/8/3P3b/PPP1PPPP/RN2KBNR rn2kbnr/pb1ppppp/2p5/8/8/2P5/PB1PPPPP/RN2KBNR rQb1kbnr/1p1ppppp/2p5/8/8/2P5/1P1PPPPP/RqB1KBNR 1nb1kbnr/rp1ppppp/2p5/8/8/2P5/RP1PPPPP/1NB1KBNR rnbqk1nr/pppp1pp1/8/2b1p3/2B1P3/8/PPPP1PP1/RNBQK1NR rnbqk1nr/pppp1pp1/8/1B2p3/1b2P3/8/PPPP1PP1/RNBQK1NR rnbqk1nr/pppp1pp1/4p3/1B6/1b6/4P3/PPPP1PP1/RNBQK1NR rnbqk1nr/pppp1pp1/4p3/2b5/2B5/4P3/PPPP1PP1/RNBQK1NR rnbqk1nr/pppp1pp1/3b4/4p3/4P3/3B4/PPPP1PP1/RNBQK1NR rnbqk1nr/pppp1pp1/B3p3/8/8/b3P3/PPPP1PP1/RNBQK1NR rnbqk1nr/pppp1pp1/B7/4p3/4P3/b7/PPPP1PP1/RNBQK1NR rnbqk1nr/ppppbpp1/4p3/8/8/4P3/PPPPBPP1/RNBQK1NR rnbqk1nr/ppppbpp1/8/4p3/4P3/8/PPPPBPP1/RNBQK1NR rnbqkbnr/1p1ppppp/2p5/8/8/2P5/1P1PPPPP/RNBQKBNR rnbqkb1r/ppp1nppp/4p3/8/8/4P3/PPP1NPPP/RNBQKB1R rnbqkb1r/ppppn1pp/4p3/8/8/4P3/PPPPN1PP/RNBQKB1R rnbqkb1r/ppppnpp1/4p3/8/8/4P3/PPPPNPP1/RNBQKB1R rnbqkb1r/ppppnpp1/8/4p3/4P3/8/PPPPNPP1/RNBQKB1R rnbqkbnr/ppppp1Pp/8/8/8/8/PPPPP1pP/RNBQKBNR rnbqkbnr/pP1ppppp/8/8/8/8/Pp1PPPPP/RNBQKBNR rnbqkbnr/p1Pppppp/8/8/8/8/P1pPPPPP/RNBQKBNR rnbqkbnr/ppP1pppp/8/8/8/8/PPp1PPPP/RNBQKBNR rnbqkbnr/ppppppP1/8/8/8/8/PPPPPPp1/RNBQKBNR rnbqkbnr/pppppp1P/8/8/8/8/PPPPPP1p/RNBQKBNR rnbqkbnr/ppp1Pppp/8/8/8/8/PPP1pPPP/RNBQKBNR rnbqkbnr/ppppP1pp/8/8/8/8/PPPPp1PP/RNBQKBNR rnbqkbnr/P1pppppp/8/8/8/8/p1PPPPPP/RNBQKBNR rnbqkb1r/1pppnppp/4p3/8/8/4P3/1PPPNPPP/RNBQKB1R rnbqkb1r/1pppnppp/8/4p3/4P3/8/1PPPNPPP/RNBQKB1R rnbqkbnr/1Ppppppp/8/8/8/8/1pPPPPPP/RNBQKBNR rnb2bnr/pp1kpppp/8/2p5/2P5/8/PP1KPPPP/RNB2BNR rnb1kb1r/pppp1ppp/4p3/3n4/3N4/4P3/PPPP1PPP/RNB1KB1R rnb1kb1r/pppp1ppp/8/3np3/3NP3/8/PPPP1PPP/RNB1KB1R rnb1kbnr/pp1pppp1/2p4q/8/8/2P4Q/PP1PPPP1/RNB1KBNR rnb1kbnr/pp1ppppp/1P6/8/8/1p6/PP1PPPPP/RNB1KBNR rnb1kbnr/pp1ppppp/2q5/8/8/2Q5/PP1PPPPP/RNB1KBNR rnb1kbnr/pp1pppp1/7q/2p5/2P5/7Q/PP1PPPP1/RNB1KBNR rnb1kbnr/1ppp1ppp/8/4p1q1/4P1Q1/8/1PPP1PPP/RNB1KBNR rnb1kbnr/1ppp1ppp/5q2/4p3/4P3/5Q2/1PPP1PPP/RNB1KBNR rnb1kbnr/1ppp1ppp/4p3/6q1/6Q1/4P3/1PPP1PPP/RNB1KBNR rnb1kbnr/1ppp1ppp/8/4p2Q/4P2q/8/1PPP1PPP/RNB1KBNR rnb1kbnr/1ppp1ppp/4pq2/8/8/4PQ2/1PPP1PPP/RNB1KBNR rnb1kbnr/1ppp1ppp/4p3/7Q/7q/4P3/1PPP1PPP/RNB1KBNR rnb1kbnr/1pppqppp/4p3/8/8/4P3/1PPPQPPP/RNB1KBNR rnb1kbnr/1pppqppp/8/4p3/4P3/8/1PPPQPPP/RNB1KBNR rnb1kbnr/1Q1ppppp/8/2p5/2P5/8/1q1PPPPP/RNB1KBNR rnb1kbnr/Q2ppppp/2p5/8/8/2P5/q2PPPPP/RNB1KBNR rnb1kbnr/Q2ppppp/1pp5/8/8/1PP5/q2PPPPP/RNB1KBNR rnb1kbnr/1p1ppppp/1Qp5/8/8/1qP5/1P1PPPPP/RNB1KBNR rnb1kbnr/1p1ppppp/2p5/3q4/3Q4/2P5/1P1PPPPP/RNB1KBNR rnb1kbnr/1p1ppppp/2p1q3/8/8/2P1Q3/1P1PPPPP/RNB1KBNR rnb1kbnr/1p1ppppp/2p5/2Q5/2q5/2P5/1P1PPPPP/RNB1KBNR rnb1kbnr/pp2pppp/8/2p5/2P5/8/PP2PPPP/RNB1KBNR rnb1kbnr/p2ppppp/2Q5/8/8/2q5/P2PPPPP/RNB1KBNR rnb1kbnr/pppp2pp/8/3Qpp2/3qPP2/8/PPPP2PP/RNB1KBNR rnb1kbnr/pppp2pp/5p2/3Qp3/3qP3/5P2/PPPP2PP/RNB1KBNR rnb1kbnr/ppp2ppp/8/4p3/4P3/8/PPP2PPP/RNB1KBNR rnb1kbnr/ppp2ppp/4p3/4p3/4P3/4P3/PPP2PPP/RNB1KBNR rnb1kbnr/pppp1ppp/5P2/8/8/5p2/PPPP1PPP/RNB1KBNR rnb1kbnr/pppp1pp1/8/3Qp2p/3qP2P/8/PPPP1PP1/RNB1KBNR rnb1kbnr/ppp1ppp1/7q/3p4/3P4/7Q/PPP1PPP1/RNB1KBNR rnb1kbnr/pppqppp1/3p4/8/8/3P4/PPPQPPP1/RNB1KBNR rnb1kbnr/pppqppp1/8/3p4/3P4/8/PPPQPPP1/RNB1KBNR rnb1kbnr/pppp1p1p/8/3Qp1p1/3qP1P1/8/PPPP1P1P/RNB1KBNR rnbq2nr/pppk1ppp/4p3/8/8/4P3/PPPK1PPP/RNBQ2NR rnbq1bnr/pp1kpppp/3p4/8/8/3P4/PP1KPPPP/RNBQ1BNR rnbq1bnr/1pppkppp/4p3/8/8/4P3/1PPPKPPP/RNBQ1BNR rnbq1bnr/1pppkppp/8/4p3/4P3/8/1PPPKPPP/RNBQ1BNR rnbq1bnr/pppkppp1/3p4/8/8/3P4/PPPKPPP1/RNBQ1BNR rnbq1bnr/pppkppp1/8/3p4/3P4/8/PPPKPPP1/RNBQ1BNR rnbq1bnr/pppppk1p/5p2/8/8/5P2/PPPPPK1P/RNBQ1BNR rnbq1bnr/ppp1kppp/4p3/8/8/4P3/PPP1KPPP/RNBQ1BNR rnbq1bnr/pppk1ppp/3p4/8/8/3P4/PPPK1PPP/RNBQ1BNR rnbq1bnr/ppppk1pp/4p3/8/8/4P3/PPPPK1PP/RNBQ1BNR rnbq1bnr/pppp1kpp/5p2/8/8/5P2/PPPP1KPP/RNBQ1BNR rnbq1bnr/ppppkpp1/4p3/8/8/4P3/PPPPKPP1/RNBQ1BNR rnbq1bnr/ppppkpp1/8/4p3/4P3/8/PPPPKPP1/RNBQ1BNR rnb1k1nr/pppq1ppp/8/4p3/4P3/8/PPPQ1PPP/RNB1K1NR rnb1k1nr/pppp1ppp/4pb2/8/8/4PB2/PPPP1PPP/RNB1K1NR rnb1k1nr/pppp1ppp/5b2/4p3/4P3/5B2/PPPP1PPP/RNB1K1NR _________________ _________________ _________________ _________________ | | | | | | Q n b . k b n r | r . b q k b n r | r . b q k b n r | r . b q k b n r | | . p . p p p p p | p p p n p p p . | p p p n p p p . | p p p n . p p p | | . . p . . . . . | . . . p . . . . | . . . . . . . . | . . . p . . . . | | . . . . . . . . | . . . . . . . . | . . . p . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . P . . . . | . . . . . . . . | | . . P . . . . . | . . . P . . . . | . . . . . . . . | . . . P . . . . | | . P . P P P P P | P P P N P P P . | P P P N P P P . | P P P N . P P P | | q N B . K B N R | R . B Q K B N R | R . B Q K B N R | R . B Q K B N R | |_________________|_________________|_________________|_________________| | | | | | | r . b q k b n r | r n . . k b n r | r n . . k b n r | r n . . k b n r | | p p . n p p p p | p p p . p p p p | p p p . p p p p | p b . p p p p p | | . . . p . . . . | . . . p b . . . | . . . p . . . B | . . p . . . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . . . P . . . . | . . . P B . . . | . . . P . . . b | . . P . . . . . | | P P . N P P P P | P P P . P P P P | P P P . P P P P | P B . P P P P P | | R . B Q K B N R | R N . . K B N R | R N . . K B N R | R N . . K B N R | |_________________|_________________|_________________|_________________| | | | | | | r Q b . k b n r | . n b . k b n r | r n b q k . n r | r n b q k . n r | | . p . p p p p p | r p . p p p p p | p p p p . p p . | p p p p . p p . | | . . p . . . . . | . . p . . . . . | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . b . p . . . | . B . . p . . . | | . . . . . . . . | . . . . . . . . | . . B . P . . . | . b . . P . . . | | . . P . . . . . | . . P . . . . . | . . . . . . . . | . . . . . . . . | | . P . P P P P P | R P . P P P P P | P P P P . P P . | P P P P . P P . | | R q B . K B N R | . N B . K B N R | R N B Q K . N R | R N B Q K . N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q k . n r | r n b q k . 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 . . . | . . . b . . . . | B . . . p . . . | | . B . . . . . . | . . b . . . . . | . . . . p . . . | . . . . . . . . | | . b . . . . . . | . . B . . . . . | . . . . P . . . | . . . . . . . . | | . . . . P . . . | . . . . P . . . | . . . B . . . . | 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 . | | R N B Q K . N R | R N B Q K . N R | R N B Q K . N R | R N B Q K . N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q k . n r | r n b q k . n r | r n b q k . n r | r n b q k b n r | | p p p p . p p . | p p p p b p p . | p p p p b p p . | . p . p p p p p | | B . . . . . . . | . . . . p . . . | . . . . . . . . | . . p . . . . . | | . . . . p . . . | . . . . . . . . | . . . . p . . . | . . . . . . . . | | . . . . P . . . | . . . . . . . . | . . . . P . . . | . . . . . . . . | | b . . . . . . . | . . . . P . . . | . . . . . . . . | . . P . . . . . | | P P P P . P P . | P P P P B P P . | P P P P B P P . | . P . P P P P P | | R N B Q K . N R | R N B Q K . N R | R N B Q K . N R | R N B Q K B N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q k b . r | r n b q k b . r | r n b q k b . r | r n b q k b . r | | p p p . n p p p | p p p p n . p p | p p p p n p p . | p p p p n p p . | | . . . . p . . . | . . . . p . . . | . . . . p . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . p . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . P . . . | | . . . . P . . . | . . . . P . . . | . . . . P . . . | . . . . . . . . | | P P P . N P P P | P P P P N . P P | P P P P N P P . | P P P P N P P . | | R N B Q K B . R | R N B Q K B . R | R N B Q K B . R | R N B Q K B . R | |_________________|_________________|_________________|_________________| | | | | | | r n b q k b n r | r n b q k b n r | r n b q k b n r | r n b q 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 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 p . P P P P | | R N B Q K B N R | R N B Q K B N R | R N B Q K B N R | R N B Q K B N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q k b n r | r n b q k b n r | r n b q k b n r | r n b q 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 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 P P p . P P | | R N B Q K B N R | R N B Q K B N R | R N B Q K B N R | R N B Q K B N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q k b n r | r n b q k b . r | r n b q k b . r | r n b q k b n r | | P . p p p p p p | . p p p n p p p | . p p p n p p p | . P p p p p p p | | . . . . . . . . | . . . . p . . . | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . p . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . P . . . | . . . . . . . . | | . . . . . . . . | . . . . P . . . | . . . . . . . . | . . . . . . . . | | p . P P P P P P | . P P P N P P P | . P P P N P P P | . p P P P P P P | | R N B Q K B N R | R N B Q K B . R | R N B Q K B . R | R N B Q K B N R | |_________________|_________________|_________________|_________________| | | | | | | r n b . . b n r | r n b . k b . r | r n b . k b . r | r n b . k b n r | | p p . k 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 . . . . q | | . . p . . . . . | . . . n . . . . | . . . n p . . . | . . . . . . . . | | . . P . . . . . | . . . N . . . . | . . . N P . . . | . . . . . . . . | | . . . . . . . . | . . . . P . . . | . . . . . . . . | . . P . . . . Q | | P P . K P P P P | P P P P . P P P | P P P P . P P P | P P . P P P P . | | R N B . . B N R | R N B . K B . R | R N B . K B . 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 . 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 . p p p | | . P . . . . . . | . . q . . . . . | . . . . . . . q | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . p . . . . . | . . . . p . q . | | . . . . . . . . | . . . . . . . . | . . P . . . . . | . . . . P . Q . | | . p . . . . . . | . . Q . . . . . | . . . . . . . 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 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 . 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 p | | . . . . . q . . | . . . . p . . . | . . . . . . . . | . . . . p q . . | | . . . . p . . . | . . . . . . q . | . . . . p . . Q | . . . . . . . . | | . . . . P . . . | . . . . . . Q . | . . . . P . . q | . . . . . . . . | | . . . . . 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 | | 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 . 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 q p p p | . p p p q p p p | . Q . p p p p p | | . . . . p . . . | . . . . p . . . | . . . . . . . . | . . . . . . . . | | . . . . . . . Q | . . . . . . . . | . . . . p . . . | . . p . . . . . | | . . . . . . . q | . . . . . . . . | . . . . P . . . | . . P . . . . . | | . . . . P . . . | . . . . P . . . | . . . . . . . . | . . . . . . . . | | . P P P . P P P | . P P P Q P P P | . P P P Q 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 . 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 | | Q . . p p p p p | Q . . p p p p p | . p . p p p p p | . p . p p p p p | | . . p . . . . . | . p p . . . . . | . Q p . . . . . | . . p . . . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . q . . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . Q . . . . | | . . P . . . . . | . P P . . . . . | . q P . . . . . | . . P . . . . . | | q . . P P P P P | q . . P P P P P | . P . P P P P P | . P . 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 . 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 p | | . . p . q . . . | . . p . . . . . | . . . . . . . . | . . Q . . . . . | | . . . . . . . . | . . Q . . . . . | . . p . . . . . | . . . . . . . . | | . . . . . . . . | . . q . . . . . | . . P . . . . . | . . . . . . . . | | . . P . Q . . . | . . 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 | | 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 . 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 p | | . . . . . . . . | . . . . . p . . | . . . . . . . . | . . . . p . . . | | . . . Q p p . . | . . . Q p . . . | . . . . p . . . | . . . . 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 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 . 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 q p p p . | | . . . . . P . . | . . . . . . . . | . . . . . . . q | . . . p . . . . | | . . . . . . . . | . . . Q p . . p | . . . p . . . . | . . . . . . . . | | . . . . . . . . | . . . q P . . P | . . . 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 Q 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 . k b n r | r n b . k b n r | r n b q . . n r | r n b q . b n r | | p p p q p p p . | p p p p . p . p | p p p k . p p p | p p . k p p p p | | . . . . . . . . | . . . . . . . . | . . . . p . . . | . . . p . . . . | | . . . p . . . . | . . . Q p . p . | . . . . . . . . | . . . . . . . . | | . . . P . . . . | . . . q P . P . | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . P . . . | . . . P . . . . | | P P P Q P P P . | P P P P . P . P | P P P K . P P P | P P . K P P P P | | R N B . K B N R | R N B . K B N R | R N B Q . . N R | R N B Q . B N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q . 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 k 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 P P K P P P | . P P P K 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 | R N B Q . B N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q . 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 p p k . p | p p p . k p p p | p p p k . p p p | p p p p k . p p | | . . . . . p . . | . . . . p . . . | . . . p . . . . | . . . . p . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . . . . . P . . | . . . . P . . . | . . . P . . . . | . . . . P . . . | | P P P P P K . P | P P P . K P P P | P P P K . P P P | P P P P K . P P | | R N B Q . B N R | R N B Q . B N R | R N B Q . B N R | R N B Q . B N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q . b n r | r n b q . b n r | r n b q . b n r | r n b . k . n r | | p p p p . k p p | p p p p k p p . | p p p p k p p . | p p p q . p p p | | . . . . . p . . | . . . . p . . . | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . p . . . | . . . . p . . . | | . . . . . . . . | . . . . . . . . | . . . . P . . . | . . . . P . . . | | . . . . . P . . | . . . . P . . . | . . . . . . . . | . . . . . . . . | | P P P P . K P P | P P P P K P P . | P P P P K P P . | P P P Q . P P P | | R N B Q . B N R | R N B Q . B N R | R N B Q . B N R | R N B . K . N R | |_________________|_________________|_________________|_________________| | | | | r n b . k . n r | r n b . k . n r | | p p p p . p p p | p p p p . p p p | | . . . . p b . . | . . . . . b . . | | . . . . . . . . | . . . . p . . . | | . . . . . . . . | . . . . P . . . | | . . . . P B . . | . . . . . B . . | | P P P P . P P P | P P P P . P P P | | R N B . K . N R | R N B . K . N R | |_________________|_________________| PG-4.5, SPG-4.0: rn2kbnr/pqpppppp/bp6/8/8/BP6/PQPPPPPP/RN2KBNR r1b1kbnr/pp1ppppp/2p5/q3n3/Q3N3/2P5/PP1PPPPP/R1B1KBNR r1b1kbnr/pp1ppppp/2p5/q2N4/Q2n4/2P5/PP1PPPPP/R1B1KBNR r1b1kbnr/pp1ppppp/1qp5/3N4/3n4/1QP5/PP1PPPPP/R1B1KBNR r1b1kbnr/pp1ppppp/1qp5/4n3/4N3/1QP5/PP1PPPPP/R1B1KBNR r1b1kbnr/ppqppppp/2p5/3N4/3n4/2P5/PPQPPPPP/R1B1KBNR r1b1kbnr/ppqppppp/2p5/4n3/4N3/2P5/PPQPPPPP/R1B1KBNR 1rb1kbnr/pppnpppp/3q4/3p4/3P4/3Q4/PPPNPPPP/1RB1KBNR rnb2bnr/ppppqppp/4pk2/8/8/4PK2/PPPPQPPP/RNB2BNR rnb2bnr/pppqpppp/2kp4/8/8/2KP4/PPPQPPPP/RNB2BNR rnb2bnr/pppqpppp/3pk3/8/8/3PK3/PPPQPPPP/RNB2BNR rnbq2nr/ppppppkp/6pb/8/8/6PB/PPPPPPKP/RNBQ2NR rnbq1bnr/ppppp1pp/3k1p2/8/8/3K1P2/PPPPP1PP/RNBQ1BNR rnbq1bnr/ppppp1pp/5p1k/8/8/5P1K/PPPPP1PP/RNBQ1BNR rnbq1bnr/pppp1ppp/2k1p3/8/8/2K1P3/PPPP1PPP/RNBQ1BNR rnbq1bnr/pppp1ppp/4p1k1/8/8/4P1K1/PPPP1PPP/RNBQ1BNR rnbq1bnr/ppp1pppp/1k1p4/8/8/1K1P4/PPP1PPPP/RNBQ1BNR rnbq1bnr/ppp1pppp/3p1k2/8/8/3P1K2/PPP1PPPP/RNBQ1BNR rnb1qbnr/pppp1ppp/3kp3/8/8/3KP3/PPPP1PPP/RNB1QBNR rnb1qbnr/pppp1ppp/4pk2/8/8/4PK2/PPPP1PPP/RNB1QBNR rnb1qbnr/ppp1pppp/2kp4/8/8/2KP4/PPP1PPPP/RNB1QBNR rnb1qbnr/ppp1pppp/3pk3/8/8/3PK3/PPP1PPPP/RNB1QBNR _________________ _________________ _________________ _________________ | | | | | | r n . . k b n r | r . b . k b n r | r . b . k b n r | r . b . k b n r | | 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 p p p | | b p . . . . . . | . . p . . . . . | . . p . . . . . | . q p . . . . . | | . . . . . . . . | q . . . n . . . | q . . N . . . . | . . . N . . . . | | . . . . . . . . | Q . . . N . . . | Q . . n . . . . | . . . n . . . . | | B P . . . . . . | . . P . . . . . | . . 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 P P P | | R N . . K B N R | R . B . K B N R | R . B . K B N R | R . B . K B N R | |_________________|_________________|_________________|_________________| | | | | | | r . b . k b n r | r . b . k b n r | r . b . k b n r | . r b . k b n r | | p p . p p p p p | p p q p p p p p | p p q p p p p p | p p p n p p p p | | . q p . . . . . | . . p . . . . . | . . p . . . . . | . . . q . . . . | | . . . . n . . . | . . . N . . . . | . . . . n . . . | . . . p . . . . | | . . . . N . . . | . . . n . . . . | . . . . N . . . | . . . P . . . . | | . Q P . . . . . | . . P . . . . . | . . P . . . . . | . . . Q . . . . | | P P . P P P P P | P P Q P P P P P | P P Q P P P P P | P P P N P P P P | | R . B . K B N R | R . B . K B N R | R . B . K B N R | . R B . K B N R | |_________________|_________________|_________________|_________________| | | | | | | r n b . . b n r | r n b . . b n r | r n b . . b n r | r n b q . . n r | | p p p p q p p p | p p p q p p p p | p p p q p p p p | p p p p p p k p | | . . . . p k . . | . . k p . . . . | . . . p k . . . | . . . . . . p b | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . . . . P K . . | . . K P . . . . | . . . P K . . . | . . . . . . P B | | P P P P Q P P P | P P P Q P P P P | P P P Q P P P P | P P P P P P K P | | R N B . . B N R | R N B . . B N R | R N B . . B N R | R N B Q . . N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q . 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 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 | | . . . k . p . . | . . . . . p . k | . . k . p . . . | . . . . p . k . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . . . K . P . . | . . . . . P . K | . . K . P . . . | . . . . P . K . | | 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 | | R N B Q . B N R | R N B Q . B N R | R N B Q . B N R | R N B Q . B N R | |_________________|_________________|_________________|_________________| | | | | | | r n b q . 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 . 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 | | . k . p . . . . | . . . p . k . . | . . . k p . . . | . . . . p k . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | . . . . . . . . | . . . . . . . . | | . K . P . . . . | . . . P . K . . | . . . K P . . . | . . . . P K . . | | 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 | | R N B Q . B N R | R N B Q . B N R | R N B . Q 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 . p p p p | p p p . p p p p | | . . k p . . . . | . . . p k . . . | | . . . . . . . . | . . . . . . . . | | . . . . . . . . | . . . . . . . . | | . . K P . . . . | . . . P K . . . | | P P P . P P P P | P P P . P P P P | | R N B . Q B N R | R N B . Q B N R | |_________________|_________________| PG-4.5, SPG-3.0: rnbqkb1r/pppNpppp/8/8/8/8/PPPnPPPP/RNBQKB1R _________________ | | | r n b q k b . r | | p p p N p p p p | | . . . . . . . . | | . . . . . . . . | | . . . . . . . . | | . . . . . . . . | | P P P n P P P P | | R N B Q K B . R | |_________________|