Post an idea here...
... by: JC Van Hay
1. Subsets + Claimings; UP28
2. Analysis of the puzzle from the hub cell G3 : (125)G3=[1G5 AND 2G9 AND 5H1F3]
G3=1 -> contradiction(singles)
G3=2 -> contradiction(singles) via Claiming(1DF8)-(1=8)E7
G3=5 -> UP41
3. ALS-XZ Rule : [(8=67)BH1-(7=1348)H789J8]-(8=9)B8; UP81
... by: ray
#1. Use basic strategies bi-location/bi-value tool to get working board.
#2. Select cell H1 - bi-location cell for 5,tri-location for 6. Forcing H1 =5
gives an inconclusion; forcing H1 = 6 gives the solution.
#3. Using this solution,with basic strategies, other bi-location 1-cell solutions
found are: B9 = 6, A4 = 8; some 2-cell solutions found are: D12 = (5,2),
H2J3 = (1,2), J8 G3 = (8,5), AC7 =(7,8).
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.
Share and Enjoy
Post a Comment using Facebook...