r6r/p2pqkp1/1ppb1p1n/1b2pn1p/Q1PPP3/2B2PP1/P6P/RN2KBNR b - - 2 19
FEN state: r6r/p2pqkp1/1ppb1p1n/1b2pn1p/Q1PPP3/2B2PP1/P6P/RN2KBNR b - - 2 19 ; Best move: b5a4
The current state of the chess board is: Black rook at a8 and black rook at h8. Black pawn at a7, black pawn at d7, black queen at e7, black king at f7 and black pawn at g7. Black pawn at b6, black pawn at c6, black bishop at d6, black pawn at f6 and black knight at h6. Black bishop at b5, black pawn at e5, black knight at f5 and black pawn at h5. White queen at a4, white pawn at c4, white pawn at d4 and white pawn at e4. White bishop at c3, white pawn at f3 and white pawn at g3. White pawn at a2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 19. Black to move.