r2k1b1r/1p2qppp/n2p3n/pPp1pb2/4PN2/2NK2P1/P1PP1P1P/1RBQ1B1R b - - 0 12
FEN state: r2k1b1r/1p2qppp/n2p3n/pPp1pb2/4PN2/2NK2P1/P1PP1P1P/1RBQ1B1R b - - 0 12 ; Best move: e5f4
The current state of the chess board is: Black rook at a8, black king at d8, black bishop at f8 and black rook at h8. Black pawn at b7, black queen at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at d6 and black knight at h6. Black pawn at a5, white pawn at b5, black pawn at c5, black pawn at e5 and black bishop at f5. White pawn at e4 and white knight at f4. White knight at c3, white king at d3 and white pawn at g3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at b1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 12. Black to move.