Super Nisqually is a puzzle game, where your job is to remove a certain
number of blocks from the playfield, while avoiding dead ends.

A level consists of a square playfield, like 8 by 8 rows (level 1), which is
filled with many different colored blocks. When you select one block, you have
the ability to exchange this block with any of the (max) 4 adjacent blocks. As
soon as three identical blocks are aligned in a horizontal or vertical row,
they will be removed. Once you removed the critical amount of blocks (i.e. 56
of out 64 at level 1), you have the opportunity to reach level two (and then
so on) once all possible combinations are made. But when you made all possible
combinations before you reach the critical amount needed, the game will end.

There are two situations, where you run into a dead end. When there are five
blocks of a kind left in the playfield, but you just combine three blocks,
those two can’t be removed anymore. Situation two arises, when you deplete a
horizontal row completely, in this case you have a gap, which will divide the
playfield into two playfields, and each will be separated until the end of the
level.

In each level, you have all the time you want. However, the faster you are,
the more Bonus Points you get. Those are counting down. So if you need too
long, they are just zero.

The farther you progress in the game, the more equal will be the critical
amount and the total amount of blocks, but also the bigger are the bonus
points.