Strategies for Number Puzzles of all kinds
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Saturday 22-Jul-2017

... by: ray

1. Use only basic strategies and the forcing bi-location cell set method. Start
with cell F3 - bi-location cell for 8,tri-location cell for 3.Progressively form the
the 4-element bi-location set F3 E2H8J6,forcing only the run out values of
the 1-cell to 4-cells values until F3E2H8J6 = (3,1,7,4) which gives the solu-
tion. Other bi-location set solutions found were: C1E2H8J6 = (1,1,7,8),
E2F6H8J6 = (1,5,7,4), F36H8J6 = (3,5,7,4). N.b: Using basic to extreme
strategies, C1 = 1, E2 = 1, H8 = 7, J6 = 4, A5 = 9 gave 1-cell solutions.

Using the solution,with only basic strategies, the following non bi-location
cell set solutions were found: H8J46 = (7,9,4), FJ4J6 = (8,9,4). N.B: Using
basic to extreme strategies,F4 = 8,J4 = 9, A1 = 7,A4 = 1,C7 = 8, gave 1-cell
solutions.

OR
2. Progressively form the 2-element Exocet cell set B89,forcing the run out
values of the 1-cell to 2-cells values and applying only basic and Nishio
Chain Forcing straegies until B89 = (1,9) which gives the solution.

Saturday 22-Jul-2017

... by: jkl

morph of #227 (-90°)
# 66 to # 255 (1 to 9 becomes):
Rot.90°clockwise 0
Renumb: 1 9 6 4 8 2 5 3 7
Columns: 9 8 7 1 3 2 6 4 5
& Rows: 4 5 6 3 1 2 7 9 8
& add 8A2

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