Strategies for Number Puzzles of all kinds
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Saturday 12-Aug-2017

... by: ray

1. Use only basic strategies and the forcing bi-location cell set method.Start
with G1{1589} - bi-location cell for 8,tri-location for 5 and 8.Progressively form
the 3-element bi-location cell set G1F4A8,forcing only the run out values of the
1-cell to 3-cells values util GiF4A9 = (1,3,3) which gives the solution. N.B: Us-
ing basic to extreme strategies, G1 = 1 gave a 1-cell solution.

Using the solution,with basic strategies,the following non bi-location cell solutions were found: A8B9C1 = (3,9,4), A8B9D8 = (3,9,7), A8D7F9 = (3,5,1), C5FG4 =
(3,3,9). N.B: Using basic to extreme strategies, B9 = 9, C1 = 4, F9 = 1 gave
1-cell solutions.

2. Progressively form the 2-element Exocet cell set GJ8,forcing only the 1-celll
to 2-cells run out values until GJ8 = (5,9) which gives the solution.

Saturday 12-Aug-2017

... by: jkl

morph of 158, 230,...


Each week a new 'unsolvable' will be published and the previous will be accessible here from this archive section. If you like very tough puzzles, these are for you.
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