r1bk1b2/pp1p2pr/4pn1p/1NpPPp2/2n3B1/5K1N/PB3PPP/1R4QR b - - 1 20
FEN state: r1bk1b2/pp1p2pr/4pn1p/1NpPPp2/2n3B1/5K1N/PB3PPP/1R4QR b - - 1 20 ; Best move: f5g4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8 and black bishop at f8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at g7 and black rook at h7. Black pawn at e6, black knight at f6 and black pawn at h6. White knight at b5, black pawn at c5, white pawn at d5, white pawn at e5 and black pawn at f5. Black knight at c4 and white bishop at g4. White king at f3 and white knight at h3. White pawn at a2, white bishop at b2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at b1, white queen at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. Black to move.