rqb1kbn1/2p1p2r/2n3pP/pp1p1p2/1PB1N3/4PN2/P1PP1P1P/1RBQK2R b q - 7 15
FEN state: rqb1kbn1/2p1p2r/2n3pP/pp1p1p2/1PB1N3/4PN2/P1PP1P1P/1RBQK2R b q - 7 15 ; Best move: d5c4
The current state of the chess board is: Black rook at a8, black queen at b8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at c7, black pawn at e7 and black rook at h7. Black knight at c6, black pawn at g6 and white pawn at h6. Black pawn at a5, black pawn at b5, black pawn at d5 and black pawn at f5. White pawn at b4, white bishop at c4 and white knight at e4. White pawn at e3 and white knight at f3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. Black queenside is the only castle move available. Half move number is 7. Full move number is 15. Black to move.