rn1qkbn1/pb3p1r/1p2p3/2B4p/P3p1p1/2PP1QPN/1P2KP1P/RN3B1R b q - 0 13
FEN state: rn1qkbn1/pb3p1r/1p2p3/2B4p/P3p1p1/2PP1QPN/1P2KP1P/RN3B1R b q - 0 13 ; Best move: e4f3
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black bishop at b7, black pawn at f7 and black rook at h7. Black pawn at b6 and black pawn at e6. White bishop at c5 and black pawn at h5. White pawn at a4, black pawn at e4 and black pawn at g4. White pawn at c3, white pawn at d3, white queen at f3, white pawn at g3 and white knight at h3. White pawn at b2, white king at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 13. Black to move.