r1b2b1r/5k2/ppNp2pn/n4P1p/PP1P1P2/1q2p2P/1B2P1BQ/5KNR b - - 4 25
FEN state: r1b2b1r/5k2/ppNp2pn/n4P1p/PP1P1P2/1q2p2P/1B2P1BQ/5KNR b - - 4 25 ; Best move: b3d1
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at h8. Black king at f7. Black pawn at a6, black pawn at b6, white knight at c6, black pawn at d6, black pawn at g6 and black knight at h6. Black knight at a5, white pawn at f5 and black pawn at h5. White pawn at a4, white pawn at b4, white pawn at d4 and white pawn at f4. Black queen at b3, black pawn at e3 and white pawn at h3. White bishop at b2, white pawn at e2, white bishop at g2 and white queen at h2. White king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 25. Black to move.