r2qkbnr/4p1p1/p1np1p2/P1p4p/1pPN1P2/1P1P4/4P2N/1RBQ1RK1 w - - 1 20
FEN state: r2qkbnr/4p1p1/p1np1p2/P1p4p/1pPN1P2/1P1P4/4P2N/1RBQ1RK1 w - - 1 20 ; Best move: d4c6
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at e7 and black pawn at g7. Black pawn at a6, black knight at c6, black pawn at d6 and black pawn at f6. White pawn at a5, black pawn at c5 and black pawn at h5. Black pawn at b4, white pawn at c4, white knight at d4 and white pawn at f4. White pawn at b3 and white pawn at d3. White pawn at e2 and white knight at h2. White rook at b1, white bishop at c1, white queen at d1, white rook at f1 and white king at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. White to move.