Nansuke is a Nikoli puzzle in which the aim of the game is to add all the given numbers to the grid similarly to a cross puzzles. All you know are the numbers and the possible solutions.
Nansuke can be played on any grid size, but the bigger the grid the bigger the challenge can become. The difficulty does generally depend more on the numbers, rather than the size of the grid.
This puzzle is very similar to Keisuke, but Nansuke's slightly more difficult due to the lack of hints.
The rules are as follows:
- Put all the numbers on the grid. They can be put from left to right, or from up to down.
Nansuke's pretty straight forward. The easier place to start is with whichever number size has the fewest numbers, as this means fewer possibilities for them to be put on the map.
It often still takes a little bit of trial and error, but after the first few numbers are in the correct spot everything else will fall into place.
Like Keisuke, Nansuke has few varied adaptation possibilities. A pass code system, a location map of traps or other elements, the positions of buildings, and so on.
For my example I went with the locations of traps. My character is faced with a room containing several hidden traps. She's given the numbers as clues, as well as the rules of Nansuke. As long as she figures out the puzzle, and figures out the 0's represent pitfalls, and the 4's represent bear traps, she should be able to navigate the room. The black cells are definite safe spots.
Should she manage to figure out the puzzle, or be very lucky by blindly trying a random path, she won't fall into a trap and thus get to the other side of the room without taking damage.
The more numbers you have the more elements you can add, but it usually also makes the puzzle a lot easier. Alternatively you could hide elements in the black cells instead.