SudokuSolver Forum

Just like in here I created 3 Clueless Explosion puzzles, each with 2 given clues. The first 2 (NC AK AN & FNC AK AN) correspond to the Clueless Special puzzles there. The 3rd one (FNC AK X) doesn't produce a Clueless Special, and is the most intriguing set of rules I'm studying lately. For one, it also implies Windoku, Disjoint Groups and a whole bunch of other constraints!

Unfortunately, the explosion grid for the 3rd one doesn't preserve the whole set of rules (it's AK but not FNC or X) and it's impossible to make it do so. But I think it is still very valuable as the "road map" of the 72 9x9 solution grids for this set of rules (like I stated in the other thread). Plus it's very neat I get a unique solution when I apply the "AK across borders of grids" restriction (at par with the other 2 CE puzzles but impossible with the 2 CS puzzles).

So here they are, in all of their glory:







(Earlier faulty puzzle)

And once again, text format for the really lazy:

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............3.......5............................................................
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............3.......7............................................................
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Lastly, solution pics:

Clueless Explosion NC AK AN:

Clueless Explosion FNC AK AN:

Clueless Explosion FNC AK X:

PS:
And with this post I "earned" the rank of "Addict"... Well, as if I don't realise I'm already one long before!

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ADYFNC HJPLI BVSM GgK Oa m

Just discovered my earlier version of the 3rd puzzle here (FNC AK X) doesn't have a unique solution, but have FIVE solutions instead.

So to make amends I posted another one with an extra constraint: the "\" diagonal must have no repeat. The ensuring solution is also different from the one I showed earlier.

Given there are only 9 essentially different 9x9 solution grids upon reflecting/rotation under the FNC AK X constraints, which are all given as the 9 subgrids of my proposed solution, it's quite an interesting (and human-solvable) challenge to work out all 5 solutions by moving around those subgrids. 2 of the 5 solutions are already given here (one shown as a pic, one available throgh a link).

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ADYFNC HJPLI BVSM GgK Oa m