Zipping Through the Fog
(Published on 2. June 2024, 02:28 by SirMoose)
by Sir Moose
Place the digits 0-8 once each in every row, column, and 3*3 box.
Cells a knight's move apart cannot contain the same digit.
Region Sum Lines: Along each blue line, digits have an equal sum in every box it passes through.
Zipper Lines: Along each purple lines, digits equidistant from the center of the line add up to the digit in the center of the line. The center is marked with a circle.
Fog: Some of the grid is hidden by fog. Entering correct digits will remove fog from surrounding cells.
Link on Sudokupad
Solution code: Row 8 from left to right.
Comments
on 30. July 2024, 21:56 by ostio456
Really great puzzle with some hard logic. Really had me thinking. thanks!
on 25. July 2024, 08:52 by ostio456
Really great puzzle with some hard logic. Really had me thinking. thanks!
on 27. June 2024, 13:42 by GDP
Maybe this is closer to 2* or maybe I’m improving, but that was great!
The 0 constraint breaks so much usual logic. “Oh this has to be a 6 or above, wait it could be a 3…”
on 27. June 2024, 06:44 by GDP
Maybe this is closer to 2* or maybe I’m improving, but that was great!
The 0 constraint breaks so much usual logic. “Oh this has to be a 6 or above, wait it could be a 3…”
on 5. June 2024, 01:16 by vorash00
Initially I was stuck with the 0-8 instead of 1-9 my brain kept on insisting on trying to see where the 9 could go.
I’m also not a fan of knights move so I’m in the 3 star camp only due to my brains particulars. I always struggle with knights move constraints. I think it partly the lack of chess in my life and partly the out of sight out of mind instruction. There’s nothing on the board to recall that rule to me so I forget it exists and can’t work out the next move without rereading the rules and discovering I forgot one!
on 4. June 2024, 04:06 by BorisTheSnake
Very nice puzzle! Based on how fast I zipped through it, I'd call it closer to a 2* and would encourage 2* solvers to try it.
on 3. June 2024, 12:12 by puzzlepandit
Takes time. But worth a solve.
on 2. June 2024, 05:04 by rameshsrivats
Terrific puzzle. Would peg it closer to 3-star difficulty though.
on 2. June 2024, 03:19 by Tank
Good puzzle, took a lot to untrain my mind between 1-9 & 0-8 digits
