r1bqk2r/1ppp1p2/p4n1p/P1b1N1p1/3P3P/R1P1PP2/1PQ1B1P1/1NB1K1R1 b kq - 1 13
FEN state: r1bqk2r/1ppp1p2/p4n1p/P1b1N1p1/3P3P/R1P1PP2/1PQ1B1P1/1NB1K1R1 b kq - 1 13 ; Best move: c5a3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7 and black pawn at f7. Black pawn at a6, black knight at f6 and black pawn at h6. White pawn at a5, black bishop at c5, white knight at e5 and black pawn at g5. White pawn at d4 and white pawn at h4. White rook at a3, white pawn at c3, white pawn at e3 and white pawn at f3. White pawn at b2, white queen at c2, white bishop at e2 and white pawn at g2. White knight at b1, white bishop at c1, white king at e1 and white rook at g1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 13. Black to move.