Here are some links that are either useful for solving the mysteries or getting the most out of the When They Cry series. Read at your own discretion.

Higurashi no Naku Koro ni TIPS – Translations of the “TIPS” from the Higurashi games. These “TIPS” allows the player to read information that may or may not be useful in solving the mystery. For example, one of the “TIPS” can be as simple as “this is a small village; children who go to this school are combined into one classroom regardless of what grade or year they are in.” On the other hand, they can also provide valuable hints, such as being able to read the excerpts of the newspaper articles regarding the murders that occurred in Hinamizawa.

Putting the Pieces Together – Translations of the kakera-musubi (putting the pieces together) part of Matsuribayashi-hen.

Matsuribayashi-hen does not have TIPS (except for one at the very end). Instead, you have fifty pieces of puzzles that reveals huge information. One must put these pieces together before moving on to the actual story of Matsuribayashi-hen.

In the game, one must figure out which piece will unlock the other piece so that they can be put together. Unfortunately, we cannot simulate the effect on this board, so we’ll just translate all the pieces in chronological order so that people will not get confused.

However, unlike the TIPS which were there to help you with hints and clues, these pieces are quite filled with spoilers, so if you plan on playing the translated game or watching the second season Kai, I strongly suggest that you refrain from reading any further.

Umineko no Naku Koro ni Wiki