k2r1bn1/2qnr3/pp1p4/1Np1pp1p/PB1P4/1P1bPN1P/R1P1BP1R/3QK3 w - - 0 20
FEN state: k2r1bn1/2qnr3/pp1p4/1Np1pp1p/PB1P4/1P1bPN1P/R1P1BP1R/3QK3 w - - 0 20 ; Best move: b5c7
The current state of the chess board is: Black king at a8, black rook at d8, black bishop at f8 and black knight at g8. Black queen at c7, black knight at d7 and black rook at e7. Black pawn at a6, black pawn at b6 and black pawn at d6. White knight at b5, black pawn at c5, black pawn at e5, black pawn at f5 and black pawn at h5. White pawn at a4, white bishop at b4 and white pawn at d4. White pawn at b3, black bishop at d3, white pawn at e3, white knight at f3 and white pawn at h3. White rook at a2, white pawn at c2, white bishop at e2, white pawn at f2 and white rook at h2. White queen at d1 and white king at e1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. White to move.