rnbq4/ppppkrbp/4pp1n/2PP2p1/4KPP1/7P/PP1NP1B1/R1B1Q1NR b - - 6 13
FEN state: rnbq4/ppppkrbp/4pp1n/2PP2p1/4KPP1/7P/PP1NP1B1/R1B1Q1NR b - - 6 13 ; Best move: b8a6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black queen at d8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black king at e7, black rook at f7, black bishop at g7 and black pawn at h7. Black pawn at e6, black pawn at f6 and black knight at h6. White pawn at c5, white pawn at d5 and black pawn at g5. White king at e4, white pawn at f4 and white pawn at g4. White pawn at h3. White pawn at a2, white pawn at b2, white knight at d2, white pawn at e2 and white bishop at g2. White rook at a1, white bishop at c1, white queen at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 6. Full move number is 13. Black to move.