The first hint to crack the puzzle "Very difficult or requiring a lot of effort" is:

It is a word which contains 9 letters

The second hint to crack the puzzle "Very difficult or requiring a lot of effort" is:

It starts with letter d

The third hint to crack the puzzle "Very difficult or requiring a lot of effort" is:

It ends with letter g

Looking for extra hints for the puzzle "Very difficult or requiring a lot of effort"

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The answer for the puzzle "Very difficult or requiring a lot of effort" is: