![]() ![]() n using specific subsequence reversal operations. 137), you are challenged to sort a permutation of the integers 1. Basic Computer Games - TRS-80 Edition, p. +-+-+-+-+ Reverse Puzzle Description: In the game of Reverse (Ahl, David H. (Assuming zero-based row and column indices, what formula expresses the relationship between the row, column, and goal configuration integer?) For example, a 4-by-4 puzzle, would have the following goal state: +-+-+-+-+ This formulation is easily generalized to larger grids, and simplifies goal checking. Goal: The empty position is always in the upper left corner with tile numbers ascending left-to-right, top-to-bottom. For example, in the goal state below, either the 1 tile or the 4 tile may be moved into the empty upper-left corner. ![]() Operator: Any tile (1 to n* n - 1) that is horizontally/vertically adjacent to the empty position may be moved into the empty position. Generating a goal state and then randomly applying the operators described Initial State: An initial state is generated by Position, with 0 representing the empty position. For each grid position, an integer describes the tile at that In our version of the puzzle, we code each tile with a number from 1 to n* n Sliding Tile Puzzle Description : The "15 puzzle" is one classicĮxample of sliding square tile puzzles ( ) In addition to turning the center bulb on, this would alsoĬause the bulbs above, below, to the left, and to the right of the bulb to turn However, all lights horizontally/vertically adjacent will also toggle on/off.įor example, in the left figure above, one might select the centermost bulb to Operators: Each light bulb may be selected to toggle on/off. Goal state and then randomly applying the operators described below. Initial State: An initial state is generated by generating a Scalable Parameter: size of grid ( n-by- n, n Unimplemented Scalable Search Problem Nodes Lights Out Puzzleĭescription: Lights Out is a puzzle where one seeks to get all lights Goal: Exactly 4 units of liquid are in the two buckets. Operators: Fill or empty the first or second bucket, or pour theĬontents of one bucket into the other until the source bucket is empty or the Measure precisely 4 units? With this problem, we use search to develop a plan Buckets Problemĭescription: Given a 5 unit and a 3 unit bucket, how can one Goal: Exactly one peg remains after all others have been removed. This results in the removal of the peg at 8. State, the peg at 13 could jump the peg at 8 on its way to vacant position 4. Results in the removal of the jumped peg. A peg which jumps overĪn adjacent peg to an empty peg hole immediately beyond in the same direction Initial State: All 15 holes have pegs except for one central vacant Peg holes are in a triangular hex grid as follows: 0 Description: Traditional 5-on-a-side Triangle Peg Solitaire. ![]()
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