A simple color mutation would not change the dog tipicity, you all would be able to recognize them as czechoslovakian wolfdog because they would be typical dogs according to the standard.
Even by such simple photo we can have an idea that the skull proportions are wrong! And not only that, if we look at the pups of the mentioned litters we all will see that the dogs are weird according to the standard, ones more, others less.
Lets forget about the nice history of a possible mutation and get real about a possible accident envolving mixes.
It also kick out the possibility of an pedigree analysis, we only can guess where this saarloos (or other) entered.
There is an unknown dog (or more) at these pedigrees which we dont know when entered and how, the COI and everything else will be wrong.
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