3k1bnr/rb1n3p/p1pp1p2/1p2p1p1/PQP1NB2/1P2PP2/2R3PP/4KBqR b - - 2 18
FEN state: 3k1bnr/rb1n3p/p1pp1p2/1p2p1p1/PQP1NB2/1P2PP2/2R3PP/4KBqR b - - 2 18 ; Best move: a6a5
The current state of the chess board is: Black king at d8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7, black bishop at b7, black knight at d7 and black pawn at h7. Black pawn at a6, black pawn at c6, black pawn at d6 and black pawn at f6. Black pawn at b5, black pawn at e5 and black pawn at g5. White pawn at a4, white queen at b4, white pawn at c4, white knight at e4 and white bishop at f4. White pawn at b3, white pawn at e3 and white pawn at f3. White rook at c2, white pawn at g2 and white pawn at h2. White king at e1, white bishop at f1, black queen at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 18. Black to move.