rn1q1N2/pB1pkpp1/b3pn1r/1pp4p/8/P2P2P1/1PP1PP1P/R1BQ1KNR b - - 2 13
FEN state: rn1q1N2/pB1pkpp1/b3pn1r/1pp4p/8/P2P2P1/1PP1PP1P/R1BQ1KNR b - - 2 13 ; Best move: a6b7
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and white knight at f8. Black pawn at a7, white bishop at b7, black pawn at d7, black king at e7, black pawn at f7 and black pawn at g7. Black bishop at a6, black pawn at e6, black knight at f6 and black rook at h6. Black pawn at b5, black pawn at c5 and black pawn at h5. White pawn at a3, white pawn at d3 and white pawn at g3. White pawn at b2, white pawn at c2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king 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 13. Black to move.