r1b1kbr1/1p2qp1p/n2p2p1/p1p1p3/2P1P1P1/P1NQ4/RP1P1P1P/2BK2NR b q - 1 15
FEN state: r1b1kbr1/1p2qp1p/n2p2p1/p1p1p3/2P1P1P1/P1NQ4/RP1P1P1P/2BK2NR b q - 1 15 ; Best move: c8g4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at b7, black queen at e7, black pawn at f7 and black pawn at h7. Black knight at a6, black pawn at d6 and black pawn at g6. Black pawn at a5, black pawn at c5 and black pawn at e5. White pawn at c4, white pawn at e4 and white pawn at g4. White pawn at a3, white knight at c3 and white queen at d3. White rook at a2, white pawn at b2, white pawn at d2, white pawn at f2 and white pawn at h2. White bishop at c1, white king at d1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 15. Black to move.