5rk1/rbpp1n1p/ppn3p1/5pPq/P2Pp3/1PP1PP2/2K1Nb1R/RNB1QB2 w - - 4 20
FEN state: 5rk1/rbpp1n1p/ppn3p1/5pPq/P2Pp3/1PP1PP2/2K1Nb1R/RNB1QB2 w - - 4 20 ; Best move: e1f2
The current state of the chess board is: Black rook at f8 and black king at g8. Black rook at a7, black bishop at b7, black pawn at c7, black pawn at d7, black knight at f7 and black pawn at h7. Black pawn at a6, black pawn at b6, black knight at c6 and black pawn at g6. Black pawn at f5, white pawn at g5 and black queen at h5. White pawn at a4, white pawn at d4 and black pawn at e4. White pawn at b3, white pawn at c3, white pawn at e3 and white pawn at f3. White king at c2, white knight at e2, black bishop at f2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. White to move.