b3k2N/r1p2ppp/p2p4/1N2p2P/1n3qnb/P1QP2PR/1PP1P3/R1B2BK1 b - - 2 21
FEN state: b3k2N/r1p2ppp/p2p4/1N2p2P/1n3qnb/P1QP2PR/1PP1P3/R1B2BK1 b - - 2 21 ; Best move: f4f2
The current state of the chess board is: Black bishop at a8, black king at e8 and white knight at h8. Black rook at a7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6 and black pawn at d6. White knight at b5, black pawn at e5 and white pawn at h5. Black knight at b4, black queen at f4, black knight at g4 and black bishop at h4. White pawn at a3, white queen at c3, white pawn at d3, white pawn at g3 and white rook at h3. White pawn at b2, white pawn at c2 and white pawn at e2. White rook at a1, white bishop at c1, white bishop at f1 and white king at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. Black to move.