Hi-Q
A triangular version of Peg Solitaire with 15 holes and 14 pegs. Numbering hole 1 at the apex of the triangle andthereafter from left to right on the next lower row, etc., the following table gives possible ending holes for a single pegremoved (Beeler et al. 1972, Item 76). Because of symmetry, only the first five pegs need be considered. Also because ofsymmetry, removing peg 2 is equivalent to removing peg 3 and flipping the board horizontally.
| remove | possible ending pegs |
| 1 | 1,  , 13 |
| 2 | 2, 6, 11, 14 |
| 4 |  , 4, 9, 15 |
| 5 | 13 |
References
Beeler, M.; Gosper, R. W.; and Schroeppel, R. Item 75 in HAKMEM. Cambridge, MA: MIT Artificial Intelligence Laboratory, Memo AIM-239, Feb. 1972.
- Vertex Cover
- Vertex Degree
- Vertex Enumeration
- Vertex Figure
- Vertex (Graph)
- Vertex (Parabola)
- Vertex (Polygon)
- Vertex (Polyhedron)
- Vertex (Polytope)
- Vertical
- Vertical-Horizontal Illusion
- Vertical Perspective Projection
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- Vesica Piscis
- Vibration Problem
- Vickery Auction
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- Vigesimal
- Vigintillion
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