r1bk2r1/p1pp1p1p/np1bpn2/3q2p1/5P2/3PPQ2/PPPNB1PP/1RB1K1R1 w - - 5 13
FEN state: r1bk2r1/p1pp1p1p/np1bpn2/3q2p1/5P2/3PPQ2/PPPNB1PP/1RB1K1R1 w - - 5 13 ; Best move: f4g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black knight at a6, black pawn at b6, black bishop at d6, black pawn at e6 and black knight at f6. Black queen at d5 and black pawn at g5. White pawn at f4. White pawn at d3, white pawn at e3 and white queen at f3. White pawn at a2, white pawn at b2, white pawn at c2, white knight at d2, white bishop at e2, white pawn at g2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 5. Full move number is 13. White to move.