rn1q1k1r/4np2/1p4p1/3pp1Pp/pP1pPbbP/2P5/PQKPBP2/R1B3NR b - - 1 18
FEN state: rn1q1k1r/4np2/1p4p1/3pp1Pp/pP1pPbbP/2P5/PQKPBP2/R1B3NR b - - 1 18 ; Best move: d5e4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at f8 and black rook at h8. Black knight at e7 and black pawn at f7. Black pawn at b6 and black pawn at g6. Black pawn at d5, black pawn at e5, white pawn at g5 and black pawn at h5. Black pawn at a4, white pawn at b4, black pawn at d4, white pawn at e4, black bishop at f4, black bishop at g4 and white pawn at h4. White pawn at c3. White pawn at a2, white queen at b2, white king at c2, white pawn at d2, white bishop at e2 and white pawn at f2. White rook at a1, white bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 18. Black to move.