---
license: mit
tags:
- chess
- puzzle
size_categories:
- 100K<n<1M
configs:
- config_name: default
  data_files:
  - split: top_row
    path: "hippodrome_solutions_og.csv"
---
Solutions to all [Hippodrome chess puzzles](https://www.chessvariants.org/solitaire.dir/hippodrome.html).
Hippodrome is a type of chess puzzle in which the player has to move 4 knights from the bottom row to the top row (or some designated spots) in a 4x4 grid. Solutions is generated using A* search algorithm.
Note that since there are only 1 empty spot, and no captures allowed, this essentially means that queens function effectively as kings. 

Detailed Statistics: 
- Total number of puzzle configurations: 415800
- Total number of unsolvable configurations: 2730
- Shortest solution: 21 moves
- Longest solution: 38 moves
- Average moves: 26.6 moves
- Median moves: 27 moves