r1b3nr/2qp2k1/pbn2p1p/1p2p1p1/4PBP1/2PK1P2/PP4BP/R4QNR w - - 0 18
FEN state: r1b3nr/2qp2k1/pbn2p1p/1p2p1p1/4PBP1/2PK1P2/PP4BP/R4QNR w - - 0 18 ; Best move: f4g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black queen at c7, black pawn at d7 and black king at g7. Black pawn at a6, black bishop at b6, black knight at c6, black pawn at f6 and black pawn at h6. Black pawn at b5, black pawn at e5 and black pawn at g5. White pawn at e4, white bishop at f4 and white pawn at g4. White pawn at c3, white king at d3 and white pawn at f3. White pawn at a2, white pawn at b2, white bishop at g2 and white pawn at h2. White rook at a1, white queen at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.