r3k1nr/n1p2R2/qp2b1pB/p3P2p/PbpPP3/RPQ3NB/7P/1N4K1 b kq - 2 20
FEN state: r3k1nr/n1p2R2/qp2b1pB/p3P2p/PbpPP3/RPQ3NB/7P/1N4K1 b kq - 2 20 ; Best move: b4c3
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 knight at a7, black pawn at c7 and white rook at f7. Black queen at a6, black pawn at b6, black bishop at e6, black pawn at g6 and white bishop at h6. Black pawn at a5, white pawn at e5 and black pawn at h5. White pawn at a4, black bishop at b4, black pawn at c4, white pawn at d4 and white pawn at e4. White rook at a3, white pawn at b3, white queen at c3, white knight at g3 and white bishop at h3. White pawn at h2. White knight at b1 and white king at g1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 20. Black to move.