1n2kb1r/rb4p1/1ppqp3/Np1pP2n/3P1pp1/1PP2PP1/P2B3P/R2K2NR b - - 8 18
FEN state: 1n2kb1r/rb4p1/1ppqp3/Np1pP2n/3P1pp1/1PP2PP1/P2B3P/R2K2NR b - - 8 18 ; Best move: d6a3
The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black bishop at b7 and black pawn at g7. Black pawn at b6, black pawn at c6, black queen at d6 and black pawn at e6. White knight at a5, black pawn at b5, black pawn at d5, white pawn at e5 and black knight at h5. White pawn at d4, black pawn at f4 and black pawn at g4. White pawn at b3, white pawn at c3, white pawn at f3 and white pawn at g3. White pawn at a2, white bishop at d2 and white pawn at h2. White rook at a1, white king at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 8. Full move number is 18. Black to move.