r1bq4/pppk2rp/2n1p2n/3pP1p1/Pb1PQpN1/5P2/1P1BK1PP/R4BNR b - - 9 18
FEN state: r1bq4/pppk2rp/2n1p2n/3pP1p1/Pb1PQpN1/5P2/1P1BK1PP/R4BNR b - - 9 18 ; Best move: d5e4
The current state of the chess board is: Black rook at a8, black bishop at c8 and black queen at d8. Black pawn at a7, black pawn at b7, black pawn at c7, black king at d7, black rook at g7 and black pawn at h7. Black knight at c6, black pawn at e6 and black knight at h6. Black pawn at d5, white pawn at e5 and black pawn at g5. White pawn at a4, black bishop at b4, white pawn at d4, white queen at e4, black pawn at f4 and white knight at g4. White pawn at f3. White pawn at b2, white bishop at d2, white king at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 9. Full move number is 18. Black to move.