rn1q1bn1/pp1bpkpr/3p3p/1Np2p2/4P3/3P1PP1/PPP2KBP/R1BQ2NR b - - 7 10
FEN state: rn1q1bn1/pp1bpkpr/3p3p/1Np2p2/4P3/3P1PP1/PPP2KBP/R1BQ2NR b - - 7 10 ; Best move: d7b5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black bishop at d7, black pawn at e7, black king at f7, black pawn at g7 and black rook at h7. Black pawn at d6 and black pawn at h6. White knight at b5, black pawn at c5 and black pawn at f5. White pawn at e4. White pawn at d3, white pawn at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at c2, white king at f2, white bishop at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 7. Full move number is 10. Black to move.