r2q1br1/1p1kn2p/2p1bn2/P2pp1p1/P1B4P/4P1pN/N1PP1P2/R1BQK2R w Q - 0 19
FEN state: r2q1br1/1p1kn2p/2p1bn2/P2pp1p1/P1B4P/4P1pN/N1PP1P2/R1BQK2R w Q - 0 19 ; Best move: c4f1
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8 and black rook at g8. Black pawn at b7, black king at d7, black knight at e7 and black pawn at h7. Black pawn at c6, black bishop at e6 and black knight at f6. White pawn at a5, black pawn at d5, black pawn at e5 and black pawn at g5. White pawn at a4, white bishop at c4 and white pawn at h4. White pawn at e3, black pawn at g3 and white knight at h3. White knight at a2, white pawn at c2, white pawn at d2 and white pawn at f2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 19. White to move.