r3kb2/pp3b1n/n1pp2Np/4p3/2P5/BP2R2p/P2PPKP1/RNQ2B2 w - - 0 20
FEN state: r3kb2/pp3b1n/n1pp2Np/4p3/2P5/BP2R2p/P2PPKP1/RNQ2B2 w - - 0 20 ; Best move: g6f8
The current state of the chess board is: Black rook at a8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black bishop at f7 and black knight at h7. Black knight at a6, black pawn at c6, black pawn at d6, white knight at g6 and black pawn at h6. Black pawn at e5. White pawn at c4. White bishop at a3, white pawn at b3, white rook at e3 and black pawn at h3. White pawn at a2, white pawn at d2, white pawn at e2, white king at f2 and white pawn at g2. White rook at a1, white knight at b1, white queen at c1 and white bishop at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. White to move.