1rb2knr/pppp1p1p/2n1pq2/6p1/3P3P/1PP2PP1/PQ2P1K1/RN3BNR b - - 4 13
FEN state: 1rb2knr/pppp1p1p/2n1pq2/6p1/3P3P/1PP2PP1/PQ2P1K1/RN3BNR b - - 4 13 ; Best move: d7d6
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black knight at c6, black pawn at e6 and black queen at f6. Black pawn at g5. White pawn at d4 and white pawn at h4. White pawn at b3, white pawn at c3, white pawn at f3 and white pawn at g3. White pawn at a2, white queen at b2, white pawn at e2 and white king at g2. White rook at a1, white knight at b1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 13. Black to move.