r2qk1n1/p2r4/nppp1ppP/4pb2/2P1P3/N4P1P/Pb4B1/BR1QK1NR b q - 0 19
FEN state: r2qk1n1/p2r4/nppp1ppP/4pb2/2P1P3/N4P1P/Pb4B1/BR1QK1NR b q - 0 19 ; Best move: b2a1
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8 and black knight at g8. Black pawn at a7 and black rook at d7. Black knight at a6, black pawn at b6, black pawn at c6, black pawn at d6, black pawn at f6, black pawn at g6 and white pawn at h6. Black pawn at e5 and black bishop at f5. White pawn at c4 and white pawn at e4. White knight at a3, white pawn at f3 and white pawn at h3. White pawn at a2, black bishop at b2 and white bishop at g2. White bishop at a1, white rook at b1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 19. Black to move.