a1 b1 c1 d1 e1 f1
a2 b2 c2 d2 e2 f2
a3 b3 c3 d3 e3 f3
a4 b4 c4 d4 e4 f4
a5 b5 c5 d5 e5 f5
a6 b6 c6 d6 e6 f6
Square lattice representation and board notation.
(0,0) hole in bold.
Normal representation with board notation.
Problems are grouped by the color of the finishing hole.
36 Hole Rhombus Board [Preliminary results]
Single Vacancy to Single Survivor Problems
# Vacate Finish at Length of Shortest Solution Number of Solutions Longest Sweep Longest Finishing Sweep Shortest Longest Sweep Number of Final Moves Comment
1 (-2,3) a1 (-2,3) a1 14 (S) Unknown 12? 12 ? ?  
8 (-1,3) b1 (-1,3) b1 13 40 11 11 6 12  
20 (1,3) d1 (1,3) d1 13 20 12 12 6 4  
32 (2,3) e1 (2,3) e1 13 7 9 9 8 3  
44 (0,2) c2 (0,2) c2 13 126 12 12 7 6  
56 (1,2) d2 (1,2) d2 13 3 8 8 8 1  
68 (0,1) c3 (0,1) c3 13 (S) 5 9 9 8 9 13-move solution can finish from 4 corners
75 (0,3) c1 (0,3) c1 14 Unknown 13? 13 ? ?  
87 (3,3) f1 (3,3) f1 14 (S) 3347 13 13 4 180  
96 (-1,2) b2 (-1,2) b2 14 (S) Unknown 13? 13 ? ?  
103 (2,2) e2 (2,2) e2 14 (S) Unknown 12? 12 ? ?  
112 (1,1) d3 (1,1) d3 13 (S) 4 10 10 8 4  
### (5,-7) f8 (2,-7) c8              
                       
Column Definitions:
Length of Shortest Solution This is the length of the shortest solution to this problem, minimizing total moves
Number of Solutions This is the number of unique solution sequences, irregardless of move order and symmetry
Longest Sweep This is the longest sweep possible in any minimal length solution [link to solution]
Longest Finishing Sweep This is the longest sweep in the final move of any minimal length solution [link]
Shortest Longest Sweep There is no minimal length solution where all sweeps are shorter than this number [link]
Number of Final Moves This is the number of different finishing moves (up to symmetry)
(S) Problem is symmetric, multiple solutions counted as one
Solution differences can be very subtle.

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