r1b1k1nr/p2p4/1Pp3p1/5pqp/1b1npP2/N3P2P/PP1P1K2/R1BQ1BNR w - - 0 20
FEN state: r1b1k1nr/p2p4/1Pp3p1/5pqp/1b1npP2/N3P2P/PP1P1K2/R1BQ1BNR w - - 0 20 ; Best move: f4g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at d7. White pawn at b6, black pawn at c6 and black pawn at g6. Black pawn at f5, black queen at g5 and black pawn at h5. Black bishop at b4, black knight at d4, black pawn at e4 and white pawn at f4. White knight at a3, white pawn at e3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at d2 and white king at f2. White rook at a1, white bishop at c1, white queen at d1, white bishop 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 20. White to move.