r3k1nr/2pqpp2/b3Bbp1/pp1p4/P2PPBp1/5N1P/nPP1KP2/R2Q2R1 b q - 3 20
FEN state: r3k1nr/2pqpp2/b3Bbp1/pp1p4/P2PPBp1/5N1P/nPP1KP2/R2Q2R1 b q - 3 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 c7, black queen at d7, black pawn at e7 and black pawn at f7. Black bishop at a6, white bishop at e6, black bishop at f6 and black pawn at g6. Black pawn at a5, black pawn at b5 and black pawn at d5. White pawn at a4, white pawn at d4, white pawn at e4, white bishop at f4 and black pawn at g4. White knight at f3 and white pawn at h3. Black knight at a2, white pawn at b2, white pawn at c2, white king at e2 and white pawn at f2. White rook at a1, white queen at d1 and white rook at g1. Black queenside is the only castle move available. Half move number is 3. Full move number is 20. Black to move.