Impound (Mind Loft)

Impound is Parker on a bigger lot. The board is seven by seven, with around twenty blocks that can each slide only along their own axis, and a red block that has to reach the exit gap on the right. Tap a block, then tap where you want it to go, and it moves if the lane is clear. One slide of any distance counts as one move. Because seven is odd, the exit lane is the true middle row, with three rows of traffic above and three below.

Every board is machine generated and then solved exactly by a breadth-first search over every reachable position, so the perfect score really is the fewest moves possible. Par sits a cushion above perfect; it is the number a clean solve lands on and it can be beaten. There is no undo, only a restart, and a Hint button points the way when you are stuck. A bar above the board shows your moves against perfect and par as you go.

Boards climb through the week, from about sixteen moves on Monday to the mid thirties by Saturday, and Sunday runs longer still. Each day's board is harder than the matching Parker board, and Junkyard, on an eight by eight lot, is the largest of the three. A new board appears every day at midnight Eastern.