r4b1r/pn1qpk1p/2p4n/1p1pPpp1/1P1P1P2/P1N5/R1P2KPP/1NB2Q1R w - - 0 20
FEN state: r4b1r/pn1qpk1p/2p4n/1p1pPpp1/1P1P1P2/P1N5/R1P2KPP/1NB2Q1R w - - 0 20 ; Best move: f4g5
The current state of the chess board is: Black rook at a8, black bishop at f8 and black rook at h8. Black pawn at a7, black knight at b7, black queen at d7, black pawn at e7, black king at f7 and black pawn at h7. Black pawn at c6 and black knight at h6. Black pawn at b5, black pawn at d5, white pawn at e5, black pawn at f5 and black pawn at g5. White pawn at b4, white pawn at d4 and white pawn at f4. White pawn at a3 and white knight at c3. White rook at a2, white pawn at c2, white king at f2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at c1, white queen at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. White to move.