2b1qkn1/3ppn1r/r1p4b/Q3Bp2/2PP2P1/2N5/PP2PP2/R3K1NB b Q - 0 18
FEN state: 2b1qkn1/3ppn1r/r1p4b/Q3Bp2/2PP2P1/2N5/PP2PP2/R3K1NB b Q - 0 18 ; Best move: a6a5
The current state of the chess board is: Black bishop at c8, black queen at e8, black king at f8 and black knight at g8. Black pawn at d7, black pawn at e7, black knight at f7 and black rook at h7. Black rook at a6, black pawn at c6 and black bishop at h6. White queen at a5, white bishop at e5 and black pawn at f5. White pawn at c4, white pawn at d4 and white pawn at g4. White knight at c3. White pawn at a2, white pawn at b2, white pawn at e2 and white pawn at f2. White rook at a1, white king at e1, white knight at g1 and white bishop at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.