rnb2k1r/3pppbp/2p2qpn/p7/3PPPP1/P1N4P/1PpN1K2/R1B2BQR w - - 1 20
FEN state: rnb2k1r/3pppbp/2p2qpn/p7/3PPPP1/P1N4P/1PpN1K2/R1B2BQR w - - 1 20 ; Best move: e4e5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at f8 and black rook at h8. Black pawn at d7, black pawn at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at c6, black queen at f6, black pawn at g6 and black knight at h6. Black pawn at a5. White pawn at d4, white pawn at e4, white pawn at f4 and white pawn at g4. White pawn at a3, white knight at c3 and white pawn at h3. White pawn at b2, black pawn at c2, white knight at d2 and white king at f2. White rook at a1, white bishop at c1, white bishop at f1, white queen at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. White to move.