b1r1kbnr/p1pqp2p/3p2p1/1B3p2/2PP1P2/n5PP/PP3R2/NRBQK1N1 b k - 0 19
FEN state: b1r1kbnr/p1pqp2p/3p2p1/1B3p2/2PP1P2/n5PP/PP3R2/NRBQK1N1 b k - 0 19 ; Best move: a3b5
The current state of the chess board is: Black bishop at a8, black rook at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black queen at d7, black pawn at e7 and black pawn at h7. Black pawn at d6 and black pawn at g6. White bishop at b5 and black pawn at f5. White pawn at c4, white pawn at d4 and white pawn at f4. Black knight at a3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at b2 and white rook at f2. White knight at a1, white rook at b1, white bishop at c1, white queen at d1, white king at e1 and white knight at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 19. Black to move.