To go by the board means to get ruined or lost, and in this sentence the speaker is saying that the thing won't get ruined or lost.
Given the statement "He spoke then more to keep up his own courage than to argue: This isn't the kind of thing they'd let get ruined or lost.", what is the statement "He spoke then more to keep up his own courage than to argue: This isn't the kind of thing they'd let go by the board." true?
- Yes
- No
- Unknown