1nb1kb1r/1p5p/r3qnp1/2pp4/p4BPP/2P2P1B/PP2P1K1/RN4NR b k - 0 18
FEN state: 1nb1kb1r/1p5p/r3qnp1/2pp4/p4BPP/2P2P1B/PP2P1K1/RN4NR b k - 0 18 ; Best move: b8d7
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7 and black pawn at h7. Black rook at a6, black queen at e6, black knight at f6 and black pawn at g6. Black pawn at c5 and black pawn at d5. Black pawn at a4, white bishop at f4, white pawn at g4 and white pawn at h4. White pawn at c3, white pawn at f3 and white bishop at h3. White pawn at a2, white pawn at b2, white pawn at e2 and white king at g2. White rook at a1, white knight at b1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.