rn2kb1r/1pq3p1/3pb1Pp/p1p1p3/P2N1P1P/1P2K2n/2PPP3/R2Q1B2 w - - 4 20
FEN state: rn2kb1r/1pq3p1/3pb1Pp/p1p1p3/P2N1P1P/1P2K2n/2PPP3/R2Q1B2 w - - 4 20 ; Best move: d4e6
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black queen at c7 and black pawn at g7. Black pawn at d6, black bishop at e6, white pawn at g6 and black pawn at h6. Black pawn at a5, black pawn at c5 and black pawn at e5. White pawn at a4, white knight at d4, white pawn at f4 and white pawn at h4. White pawn at b3, white king at e3 and black knight at h3. White pawn at c2, white pawn at d2 and white pawn at e2. White rook at a1, white queen at d1 and white bishop at f1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. White to move.