r1bq1k2/1pR1p1b1/n6r/p2p1p1p/1P1P4/N1P1P1P1/P2N1PB1/R1BQK3 b Q - 0 19
FEN state: r1bq1k2/1pR1p1b1/n6r/p2p1p1p/1P1P4/N1P1P1P1/P2N1PB1/R1BQK3 b Q - 0 19 ; Best move: d8c7
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black king at f8. Black pawn at b7, white rook at c7, black pawn at e7 and black bishop at g7. Black knight at a6 and black rook at h6. Black pawn at a5, black pawn at d5, black pawn at f5 and black pawn at h5. White pawn at b4 and white pawn at d4. White knight at a3, white pawn at c3, white pawn at e3 and white pawn at g3. White pawn at a2, white knight at d2, white pawn at f2 and white bishop at g2. White rook at a1, white bishop at c1, white queen at d1 and white king at e1. White queenside is the only castle move available. Half move number is 0. Full move number is 19. Black to move.