r1b1k2r/p3q2p/1p1ppp1b/P1p3pn/3N2P1/1P2B3/2P1PPBP/R2QK1NR b KQkq - 1 13
FEN state: r1b1k2r/p3q2p/1p1ppp1b/P1p3pn/3N2P1/1P2B3/2P1PPBP/R2QK1NR b KQkq - 1 13 ; Best move: c5d4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black queen at e7 and black pawn at h7. Black pawn at b6, black pawn at d6, black pawn at e6, black pawn at f6 and black bishop at h6. White pawn at a5, black pawn at c5, black pawn at g5 and black knight at h5. White knight at d4 and white pawn at g4. White pawn at b3 and white bishop at e3. White pawn at c2, white pawn at e2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at a1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 13. Black to move.