rnbqkb2/1p1p1p2/2p2n2/p3p1rp/PP3p1N/R1N4P/2PPPKP1/2B1QB1R b - - 1 15
FEN state: rnbqkb2/1p1p1p2/2p2n2/p3p1rp/PP3p1N/R1N4P/2PPPKP1/2B1QB1R b - - 1 15 ; Best move: a5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at b7, black pawn at d7 and black pawn at f7. Black pawn at c6 and black knight at f6. Black pawn at a5, black pawn at e5, black rook at g5 and black pawn at h5. White pawn at a4, white pawn at b4, black pawn at f4 and white knight at h4. White rook at a3, white knight at c3 and white pawn at h3. White pawn at c2, white pawn at d2, white pawn at e2, white king at f2 and white pawn at g2. White bishop at c1, white queen at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 15. Black to move.