r4qn1/pnp1pkbr/3Rbppp/8/6PP/1pP2N2/3PPP2/RNBK1B2 b - - 6 18
FEN state: r4qn1/pnp1pkbr/3Rbppp/8/6PP/1pP2N2/3PPP2/RNBK1B2 b - - 6 18 ; Best move: b7d6
The current state of the chess board is: Black rook at a8, black queen at f8 and black knight at g8. Black pawn at a7, black knight at b7, black pawn at c7, black pawn at e7, black king at f7, black bishop at g7 and black rook at h7. White rook at d6, black bishop at e6, black pawn at f6, black pawn at g6 and black pawn at h6. White pawn at g4 and white pawn at h4. Black pawn at b3, white pawn at c3 and white knight at f3. White pawn at d2, white pawn at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at d1 and white bishop at f1. Both players have exhausted their castles. Half move number is 6. Full move number is 18. Black to move.