2q1kbr1/2ppp2p/r1nB1p2/p7/P1pP3P/1P2n2N/N1b1PP2/R2QKBR1 b Q - 2 18
FEN state: 2q1kbr1/2ppp2p/r1nB1p2/p7/P1pP3P/1P2n2N/N1b1PP2/R2QKBR1 b Q - 2 18 ; Best move: g8g1
The current state of the chess board is: Black queen at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at c7, black pawn at d7, black pawn at e7 and black pawn at h7. Black rook at a6, black knight at c6, white bishop at d6 and black pawn at f6. Black pawn at a5. White pawn at a4, black pawn at c4, white pawn at d4 and white pawn at h4. White pawn at b3, black knight at e3 and white knight at h3. White knight at a2, black bishop at c2, white pawn at e2 and white pawn at f2. White rook at a1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. White queenside is the only castle move available. Half move number is 2. Full move number is 18. Black to move.