rnb1kbn1/3p2r1/p4p2/qp2p1Np/3PPPP1/PPp4P/2P1BK2/RNBQ3R b q - 0 13
FEN state: rnb1kbn1/3p2r1/p4p2/qp2p1Np/3PPPP1/PPp4P/2P1BK2/RNBQ3R b q - 0 13 ; Best move: f6g5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at d7 and black rook at g7. Black pawn at a6 and black pawn at f6. Black queen at a5, black pawn at b5, black pawn at e5, white knight at g5 and black pawn at h5. White pawn at d4, white pawn at e4, white pawn at f4 and white pawn at g4. White pawn at a3, white pawn at b3, black pawn at c3 and white pawn at h3. White pawn at c2, white bishop at e2 and white king at f2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 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.