Str8ts Forum

- Column 4 and 5 upper parts can’t both be high, because: If they were high, A45=56 and A2=1, which is not possible.
- Wenn D6=3... is not needed, because either D4 or D5 = 3 => D6 can't be 3, so D6=6.

Hi Jens, hps, and others This is very interesting puzzle indeed! I solved it like hps. UR-logic is sometimes a little bit confusing to me, so I was wondering for a long time, why AB3 (orAB5) is NOT UR with AB9. At last I thougt it is because number 1 in A8 can interfere A9. But AB3 and AB5 together ...

Hi Jens (and others),
You are right, there is no UR upper right corner. I was too happy with my brilliant idea of UR and didn't notice possibility of row B with numbers 1-8. Lucky mistake became unlucky!
MrL

Hi, is it really. so that 7.is. sure digit.on rowB and col4 (at the. beginning)? I dont know BCA, I use setti.
MrL