2q1kb1r/r1p1pn1p/2b3p1/p2pn3/p2P1PP1/1PP5/P2KP2P/2RQ1BBR b k - 1 20
FEN state: 2q1kb1r/r1p1pn1p/2b3p1/p2pn3/p2P1PP1/1PP5/P2KP2P/2RQ1BBR b k - 1 20 ; Best move: e5g4
The current state of the chess board is: Black queen at c8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at c7, black pawn at e7, black knight at f7 and black pawn at h7. Black bishop at c6 and black pawn at g6. Black pawn at a5, black pawn at d5 and black knight at e5. Black pawn at a4, white pawn at d4, white pawn at f4 and white pawn at g4. White pawn at b3 and white pawn at c3. White pawn at a2, white king at d2, white pawn at e2 and white pawn at h2. White rook at c1, white queen at d1, white bishop at f1, white bishop at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 20. Black to move.