Re(4): Listener 4360: What a Turn-up! by IOA IP: 184.108.40.206 Posted on September 14, 2015 at 07:53:33 PM by Simon Long
I completely agree with Gerry. I looked at the depictions of the digits provided next to the grid, and it was clear that 1 did not have rotational symmetry, so should have been excluded. I started solving on this basis and rapidly realised the puzzle was unsolvable - this was obvious from 11ac alone, which clearly had no answers in which at least one digit was not 1 - so I started again. I shouldn't have had to.
The diagram of digits was misleading, and should have had a note to the effect that 1 should be treated as if it did have rotational symmetry for the purpose of the puzzle. Replies: