Oh hey, these are puzzles. Here you can find web-based version of Python-based versions I made while trying to recreate the puzzles version seen on NationStates. More instructions can be seen below.
Kakuro
You have a 4x4 grid of numbers that you have to fill in. The hints on the top and left edge tell you the sum of the numbers in the row or column.
The numbers you can use are 1-9, and you can't use the same number twice in a the same row or column.
Seed: 0
Fifteen-Tile puzzle
You have a 4-by-4 grid of squares that need to be arranged back into order. The blank space (marked with a dot) can swap places with the squares in each of the four cardinal directions. Use this to position it into the target square (marked with a blank border). While doing so, you must order the other squares so that the rows form into AABB, CCDD, EEFF and GGHH, descending.
Move the blank with arrow keys, the control buttons, or by clicking a neighboring tile.
Moves: 0
Seed: 0