4rbnr/p2n3p/1p1k2p1/1bppppqP/PP2PQ2/NKPP2N1/R4PP1/5BR1 b - - 9 23
FEN state: 4rbnr/p2n3p/1p1k2p1/1bppppqP/PP2PQ2/NKPP2N1/R4PP1/5BR1 b - - 9 23 ; Best move: b5a4
The current state of the chess board is: Black rook at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black knight at d7 and black pawn at h7. Black pawn at b6, black king at d6 and black pawn at g6. Black bishop at b5, black pawn at c5, black pawn at d5, black pawn at e5, black pawn at f5, black queen at g5 and white pawn at h5. White pawn at a4, white pawn at b4, white pawn at e4 and white queen at f4. White knight at a3, white king at b3, white pawn at c3, white pawn at d3 and white knight at g3. White rook at a2, white pawn at f2 and white pawn at g2. White bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 9. Full move number is 23. Black to move.