rnbq1kr1/pp3pp1/3p4/1NpP3p/5BnP/PP1pPNP1/2P2P2/R3KB1R b KQ - 0 13
FEN state: rnbq1kr1/pp3pp1/3p4/1NpP3p/5BnP/PP1pPNP1/2P2P2/R3KB1R b KQ - 0 13 ; Best move: d8a5
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 f8 and black rook at g8. Black pawn at a7, black pawn at b7, black pawn at f7 and black pawn at g7. Black pawn at d6. White knight at b5, black pawn at c5, white pawn at d5 and black pawn at h5. White bishop at f4, black knight at g4 and white pawn at h4. White pawn at a3, white pawn at b3, black pawn at d3, white pawn at e3, white knight at f3 and white pawn at g3. White pawn at c2 and white pawn at f2. White rook at a1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 13. Black to move.