r1k4r/ppb1n1pp/n2p1p2/3Pp1NP/2Q1N1b1/5PP1/PP2KR2/R1B2B2 w - - 6 20
FEN state: r1k4r/ppb1n1pp/n2p1p2/3Pp1NP/2Q1N1b1/5PP1/PP2KR2/R1B2B2 w - - 6 20 ; Best move: f3g4
The current state of the chess board is: Black rook at a8, black king at c8 and black rook at h8. Black pawn at a7, black pawn at b7, black bishop at c7, black knight at e7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at d6 and black pawn at f6. White pawn at d5, black pawn at e5, white knight at g5 and white pawn at h5. White queen at c4, white knight at e4 and black bishop at g4. White pawn at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white king at e2 and white rook at f2. White rook at a1, white bishop at c1 and white bishop at f1. Both players have exhausted their castles. Half move number is 6. Full move number is 20. White to move.