4kb1r/prp2ppp/n2p1q2/1p1Np3/PP1P4/5Q1P/2P1P3/BR2KBNR w Kk - 1 20
FEN state: 4kb1r/prp2ppp/n2p1q2/1p1Np3/PP1P4/5Q1P/2P1P3/BR2KBNR w Kk - 1 20 ; Best move: d5f6
The current state of the chess board is: Black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black rook at b7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at d6 and black queen at f6. Black pawn at b5, white knight at d5 and black pawn at e5. White pawn at a4, white pawn at b4 and white pawn at d4. White queen at f3 and white pawn at h3. White pawn at c2 and white pawn at e2. White bishop at a1, white rook at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and black kingside castles are available. Half move number is 1. Full move number is 20. White to move.