1rbq2nr/p1kN4/n1p1p2p/1p2Pp2/PPp2Pp1/2NP3P/3B2P1/R2QKB1R b Q - 1 20
FEN state: 1rbq2nr/p1kN4/n1p1p2p/1p2Pp2/PPp2Pp1/2NP3P/3B2P1/R2QKB1R b Q - 1 20 ; Best move: d8h4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black king at c7 and white knight at d7. Black knight at a6, black pawn at c6, black pawn at e6 and black pawn at h6. Black pawn at b5, white pawn at e5 and black pawn at f5. White pawn at a4, white pawn at b4, black pawn at c4, white pawn at f4 and black pawn at g4. White knight at c3, white pawn at d3 and white pawn at h3. White bishop at d2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White queenside is the only castle move available. Half move number is 1. Full move number is 20. Black to move.