r3k2r/p2q1pbN/2n1b1P1/2ppp2p/8/P5P1/1PPPPK1P/R1BQ1BR1 b kq - 1 20
FEN state: r3k2r/p2q1pbN/2n1b1P1/2ppp2p/8/P5P1/1PPPPK1P/R1BQ1BR1 b kq - 1 20 ; Best move: f7f6
The current state of the chess board is: Black rook at a8, black king at e8 and black rook at h8. Black pawn at a7, black queen at d7, black pawn at f7, black bishop at g7 and white knight at h7. Black knight at c6, black bishop at e6 and white pawn at g6. Black pawn at c5, black pawn at d5, black pawn at e5 and black pawn at h5. White pawn at a3 and white pawn at g3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at e2, white king at f2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at g1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 20. Black to move.