dailysudoku.com

Asellus

I am so happy to learn so many things from you. I just wonder our posts may be off the topic “tough one” and will be banned anytime. I don’t know in what way I can get in touch with you aga ...

Hi Asellus,

Thank you so much for your helpful response! First, I agree that once a device is set up with logic we need not mention “if-then” anymore. Secondly, this is the first time I learn the t ...

A method without using any known technique---Yellow Zone Strategy
After basics:
+-----------+----------------+------------+
| 4 56Y 3 | 1 5*9^ 7 | 2 69Y 8 |
| 5^*6 7 9 | 2 3458 ...

Hi Asellus

Asellus wrote :
There is a bit too much "if this is true then that happens" in this YZ-method concept for my taste.

Thanks for your opinion. Yet I think in any logical reas ...

Daj95376 and Keith
Thank you so much for giving me an immediate and helpful response. First, Daj95376 is so nice and clever to let me know a better way to get r3c7<>4. Please take a look at my ...

Gary Torborg

The logic : r3c7=4 => r9c7<4>r2c9=78,

Should be replaced as "The logic : r3c7=4 => r9c7<>4;"(and r3c7=4=>r2c9=78.)

Gary Torborg
(Continued)

The logic : r3c7=4 => r9c7<4>r2c9=78,
r3c7=4 =>r3c1=6=>r1c3=157=>(a naked triple 157 in box 1)=>r2c2=39=>(a naked pair 39 in row2)=>r2c4=78=& ...

Gary Torborg
I totally agree with your point stated in the other discussion “I disagree that any puzzles have no solution other than guessing”. At this discussion, I don’t think daj95376’s techniqu ...