r2qkb1r/p1p4p/np1ppp1P/P4b2/1PP1P1PR/N4N2/3P1P2/R1BQKB2 b Qkq - 0 13
FEN state: r2qkb1r/p1p4p/np1ppp1P/P4b2/1PP1P1PR/N4N2/3P1P2/R1BQKB2 b Qkq - 0 13 ; Best move: f5e4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7 and black pawn at h7. Black knight at a6, black pawn at b6, black pawn at d6, black pawn at e6, black pawn at f6 and white pawn at h6. White pawn at a5 and black bishop at f5. White pawn at b4, white pawn at c4, white pawn at e4, white pawn at g4 and white rook at h4. White knight at a3 and white knight at f3. White pawn at d2 and white pawn at f2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white bishop at f1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. Black to move.