r1bq2rb/3p1pk1/4pn2/ppP4p/4NQ1R/1P1P1NP1/P3PP2/R1B1K2B b - - 0 20
FEN state: r1bq2rb/3p1pk1/4pn2/ppP4p/4NQ1R/1P1P1NP1/P3PP2/R1B1K2B b - - 0 20 ; Best move: g7f8
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black rook at g8 and black bishop at h8. Black pawn at d7, black pawn at f7 and black king at g7. Black pawn at e6 and black knight at f6. Black pawn at a5, black pawn at b5, white pawn at c5 and black pawn at h5. White knight at e4, white queen at f4 and white rook at h4. White pawn at b3, white pawn at d3, white knight at f3 and white pawn at g3. White pawn at a2, white pawn at e2 and white pawn at f2. White rook at a1, white bishop at c1, white king at e1 and white bishop at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.