r1b1qbnr/p1N1k1pp/n3p3/3p1p2/2p2P2/P2P2P1/1P1NP2P/R1BQKB1R b KQ - 0 10
FEN state: r1b1qbnr/p1N1k1pp/n3p3/3p1p2/2p2P2/P2P2P1/1P1NP2P/R1BQKB1R b KQ - 0 10 ; Best move: a6c7
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, white knight at c7, black king at e7, black pawn at g7 and black pawn at h7. Black knight at a6 and black pawn at e6. Black pawn at d5 and black pawn at f5. Black pawn at c4 and white pawn at f4. White pawn at a3, white pawn at d3 and white pawn at g3. White pawn at b2, white knight at d2, white pawn at e2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 10. Black to move.