r1b1qbr1/4kn1p/1pn5/4P1p1/PpP2pPP/2N1Q2B/1BP2P2/R3K1NR b - - 0 20
FEN state: r1b1qbr1/4kn1p/1pn5/4P1p1/PpP2pPP/2N1Q2B/1BP2P2/R3K1NR b - - 0 20 ; Best move: f4e3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8 and black rook at g8. Black king at e7, black knight at f7 and black pawn at h7. Black pawn at b6 and black knight at c6. White pawn at e5 and black pawn at g5. White pawn at a4, black pawn at b4, white pawn at c4, black pawn at f4, white pawn at g4 and white pawn at h4. White knight at c3, white queen at e3 and white bishop at h3. White bishop at b2, white pawn at c2 and white pawn at f2. White rook at a1, white king at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.