r3kb1r/ppp1pp2/2nNbn2/6pp/2P2P1P/3p4/PP1P2P1/R1BQ1KNR b kq - 0 10
FEN state: r3kb1r/ppp1pp2/2nNbn2/6pp/2P2P1P/3p4/PP1P2P1/R1BQ1KNR b kq - 0 10 ; Best move: e7d6
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at e7 and black pawn at f7. Black knight at c6, white knight at d6, black bishop at e6 and black knight at f6. Black pawn at g5 and black pawn at h5. White pawn at c4, white pawn at f4 and white pawn at h4. Black pawn at d3. White pawn at a2, white pawn at b2, white pawn at d2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white king at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. Black to move.