Even Odd Snakes Sudoku
(Published on 15. May 2020, 22:00 by Eggr)
Rules:
Normal Sudoku rules apply.
The highlighted cells are the heads and tails of the two snakes found within the grid:
1 Odd Snake (only contains odd digits) and
1 Even Snake (only contains even digits)
Snakes do not touch. (orthogonality or diagonally).
Clues outside the grid show the
total number of snake cells in the corresponding row or column.
Puzzle:
Disambiguation:
Each 'snake' is a 1-cell wide path of orthogonality connected cells, starting at the 'head' and leading to the 'tail'.
Snakes never touch each other. (Including diagonally)
Snakes never touch themselves. (Including diagonally)
Snakes never 'double-back' to cover a 2x2 region.
Digits outside the snakes have no special restrictions
Hints:
If you're struggling to place the snakes, highlight the text below to reveal some strategy recommendations:
[Hints]
1. Study the starting and ending positions of both snakes and consider how they might connect. Each head and tail must connect, without the snakes touching/intersecting, while also fulfilling the outside clues.
2. After determining the general direction each snake is headed (clockwise or counter-clockwise) the Odd/Even restriction on each snake is very powerful. Remember that basic Sudoku rules require exactly 4 Even digits, and 5 Odd digits to be in each row, box, and column. Many potential snake paths can be eliminated based on those restrictions. [/Hints]
If you enjoyed this Snakes Sudoku, you may also enjoy classic snakes puzzles. Earlier this month
zhergan posted a 10 puzzle series of them, which inspired me to create this hybrid.
Created by Greg Rodgers Powers
Solution code: Rows 5 and 7
Last changed on -
Solved by skywalker, cdwg2000, zorant, dm_litv, drawnblue, moss, sf2l, marcmees, lutzreimer, Mesmer, Nothere, rimodech, Puzzle-Elch, NikolaZ, zhergan, ManuH, geronimo92, bob, Madmahogany, pdebruine, kmoter, ch1983, Phistomefel, Nylimb, Uhu, Richard, Realshaggy, Marijana, zuzanina, Mody, OJPS, s4rify, bflat, Jesper, Daneel4, KlausRG, Crul, OGRussHood, ildiko, Johan, mluciano98
Comments
on 17. April 2022, 23:14 by Crul
f-puzzles link:
https://f-puzzles.com/?id=y6y6lse2
Nice puzzle, challenging break in and smooth solve.
Thanks!
on 21. May 2020, 13:51 by Realshaggy
Both were really nice!
on 17. May 2020, 03:15 by zhergan
Very nice one! Thanks..
on 16. May 2020, 08:30 by drawnblue
Nice puzzle!! Really enjoyed it!