rn2kbr1/2qp2p1/4pp2/p6p/bpp1PP2/3PBR1N/1PP2KBP/RN1Q4 w q - 0 19
FEN state: rn2kbr1/2qp2p1/4pp2/p6p/bpp1PP2/3PBR1N/1PP2KBP/RN1Q4 w q - 0 19 ; Best move: a1a4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at g8. Black queen at c7, black pawn at d7 and black pawn at g7. Black pawn at e6 and black pawn at f6. Black pawn at a5 and black pawn at h5. Black bishop at a4, black pawn at b4, black pawn at c4, white pawn at e4 and white pawn at f4. White pawn at d3, white bishop at e3, white rook at f3 and white knight at h3. White pawn at b2, white pawn at c2, white king at f2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1 and white queen at d1. Black queenside is the only castle move available. Half move number is 0. Full move number is 19. White to move.