r3kbn1/ppqnpppr/B1p5/3P1b1p/4P3/1PN5/3P1PPP/R1BQK1NR b KQq - 4 10
FEN state: r3kbn1/ppqnpppr/B1p5/3P1b1p/4P3/1PN5/3P1PPP/R1BQK1NR b KQq - 4 10 ; Best move: f5e4
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black queen at c7, black knight at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black rook at h7. White bishop at a6 and black pawn at c6. White pawn at d5, black bishop at f5 and black pawn at h5. White pawn at e4. White pawn at b3 and white knight at c3. White pawn at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 4. Full move number is 10. Black to move.