The New Sudoku Players' Forum

[Perseus]

Kakuro Puzzle 4 Feb 2014.jpg (221.96 KiB) Viewed 1872 times

This is a puzzle from the Roanoke (Virginia) Times 4 Feb 2014. I have entered it into Kakuro Works, which seemed to indicate that the puzzle is valid.

I can only place an 8, a 4, and eliminate some possible combinations.

However, I cannot find a logical path into this puzzle. Can someone help with a few steps to get me going?

Thanks,
George,
Stephens City, VA USA

[denis_berthier]

[...]Roanoke (Virginia) Times 4 Feb 2014[...]
I can only place an 8, a 4, and eliminate some possible combinations.
However, I cannot find a logical path into this puzzle. Can someone help with a few steps to get me going?

Hi George,
You didn't choose an easy puzzle. Im my classification system, it is W7 or gW6.
In any case, you need to keep track not only of the remaining values in the white cells but also of the remaining combinations in each sector (the hrc and vrc variables in my approach).

Try the following:
whip[4]: r9c7{n5 n4} - hr9c6{n125 n134} - c9n2{r9 r8} - r8c7{n2 .} ==> vr4c7 ≠ 24679
whip[4]: r1c8{n2 n1} - r4c8{n1 n3} - vr0c8{n12479 n12389} - r3c8{n4 .} ==> r5c8 ≠ 2
whip[4]: r4c8{n3 n1} - r1c8{n1 n2} - vr0c8{n13469 n12389} - r3c8{n4 .} ==> r5c8 ≠ 3
whip[4]: c1n3{r8 r5} - c1n5{r5 r7} - c2n5{r7 r5} - hr5c0{n236 .} ==> hr8c0 ≠ 1247
ctr-to-horiz-sector ==> r8c4 ≠ 7
whip[4]: r8c3{n1 n2} - hr8c0{n1346 n1256} - r8c1{n3 n5} - r8c2{n5 .} ==> r8c4 ≠ 1
whip[4]: r8c3{n2 n1} - hr8c0{n2345 n1256} - r8c1{n3 n5} - r8c2{n5 .} ==> r8c4 ≠ 2