rnb1k2r/2q2p1n/8/1pbp2Pp/4pp2/P2PPP2/1PPN3P/R2BQKR1 b kq - 1 20
FEN state: rnb1k2r/2q2p1n/8/1pbp2Pp/4pp2/P2PPP2/1PPN3P/R2BQKR1 b kq - 1 20 ; Best move: f4e3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black queen at c7, black pawn at f7 and black knight at h7. Black pawn at b5, black bishop at c5, black pawn at d5, white pawn at g5 and black pawn at h5. Black pawn at e4 and black pawn at f4. White pawn at a3, white pawn at d3, white pawn at e3 and white pawn at f3. White pawn at b2, white pawn at c2, white knight at d2 and white pawn at h2. White rook at a1, white bishop at d1, white queen at e1, white king 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.