Hitori Light Vol 1

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Author Comments

Each puzzle consists of a square grid with numbers appearing in all squares. The object is to shade squares so that the numbers don't appear in a row or column more than once. In addition, shaded squares must not touch each other vertically or horizontally while all un-shaded squares must create a single continuous area. There is only one unique solution for each puzzle.

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This is a quite cerebral, and very interesting logic puzzle game, just like all other puzzle games by Conceptis.

The basic graphics and lack of music make for a pretty basic presentation, but that's okay, since we're not playing this game to look at a beautiful masterpiece, but rather to crack our brains. The lack of music also means I can listen to my own music while playing.

I really like this kind of puzzle game that relies completely on logic, because the solutions to the problems can be established deductively, like we were proving a mathematical theorem. I sure like how you can come up with quite complex puzzles from rules that are, in principle, very simple.

Also, I confess it took me some time to realize what to do from the rules made available in-game, I'd have changed them around to something a little more like this:

"The objective is to mark every square with either a circle or a shade such that:
- No two shaded squares touch each other vertically or horizontally.
- In every row and column, there are no two circled squares with the same number.
- The circled squares must form a contiguous area"

Overall, though, judging the game by merits of the puzzle concept, and the levels it contains, this is pretty excellent.

At least 2 solutions are wrong:
5x5 #1 has both 2s shaded in the row 2nd from the top,
and 6x6 #10 can't be solved properly because of the 5 5s in the 1st and 3rd columns from the left .

Good type of puzzle, although I I had to resort to trial and error many times after a few logical steps.

It seems to me that some of the puzzles seem to have more than one unique solution (1.5 for example) which, even though it doesn't violate either of the two rules, it still counts as "wrong." Also, I think it could do with a more direct "advancement" to the next puzzle, too, instead of using the "Show solution" to get there, took me a bit before I figured that out, I had already solved it, so I didn't think of it as anything other than just a "hint" button. Nice game otherwise. :)

The author comments state that there is only one unique solution for each puzzle. This is definitely not the case. In puzzle one there are multiple solutions. This game requires you to have the authors solution.

This game can be a bit challenging, but nothing too hard.

Credits & Info

2.90 / 5.00

Jun 14, 2012
10:26 AM EDT
Puzzles - Other