3k3r/1bp1bp2/r1np2pn/1p2p2P/1p1PP1BB/2P3QN/P2N1P1P/R1K4R b - - 4 20
FEN state: 3k3r/1bp1bp2/r1np2pn/1p2p2P/1p1PP1BB/2P3QN/P2N1P1P/R1K4R b - - 4 20 ; Best move: b4c3
The current state of the chess board is: Black king at d8 and black rook at h8. Black bishop at b7, black pawn at c7, black bishop at e7 and black pawn at f7. Black rook at a6, black knight at c6, black pawn at d6, black pawn at g6 and black knight at h6. Black pawn at b5, black pawn at e5 and white pawn at h5. Black pawn at b4, white pawn at d4, white pawn at e4, white bishop at g4 and white bishop at h4. White pawn at c3, white queen at g3 and white knight at h3. White pawn at a2, white knight at d2, white pawn at f2 and white pawn at h2. White rook at a1, white king at c1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. Black to move.