r3k1nr/p1p1ppbp/p7/P4qp1/1BPpPPb1/1P3Q2/3P2KP/RN2N2R b kq - 1 20
FEN state: r3k1nr/p1p1ppbp/p7/P4qp1/1BPpPPb1/1P3Q2/3P2KP/RN2N2R b kq - 1 20 ; Best move: g4f3
The current state of the chess board is: Black rook at a8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at a6. White pawn at a5, black queen at f5 and black pawn at g5. White bishop at b4, white pawn at c4, black pawn at d4, white pawn at e4, white pawn at f4 and black bishop at g4. White pawn at b3 and white queen at f3. White pawn at d2, white king at g2 and white pawn at h2. White rook at a1, white knight at b1, white knight at e1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 20. Black to move.