Sum-thing or Other
(Published on 23. November 2024, 21:37 by Jay Dyer)
Rules
- Normal sudoku rules apply.
- Shade the entire grid using two colours, so that each colour forms a single orthogonally connected area, and no 2x2 area is entirely one colour.
- An arrow in a cell indicates that the digit in that cell equals the sum of all cells of the opposite colour in the direction of the arrow. If a cell contains multiple arrows, each arrow is summed separately.
Play online in Sudokupad.
Solution code: Row 4
Comments
on 1. December 2024, 08:11 by novato
Wonderful! The first time I've done a four-star puzzle and felt confident throughout that I could work it out. Very clever setting!
on 25. November 2024, 22:41 by glum_hippo
Dreamy! Very satisfying.
on 25. November 2024, 15:12 by marcmees
took me ages ... of fun.thanks
on 25. November 2024, 12:18 by mihel111
Lovely break in. That was Somme-thing other. Merci beaucoup, Jay.
on 25. November 2024, 12:16 by Crusader175
Beautiful!
on 25. November 2024, 04:52 by Silverscree
Simply excellent :)
on 24. November 2024, 15:17 by Fool on Hill
Beautifully done - up there with your best.
on 24. November 2024, 14:26 by Myxo
Lovely!
on 24. November 2024, 13:47 by Snookerfan
Super fun puzzle! Thank you
on 24. November 2024, 01:53 by yttrio
Amazing puzzle! It's one of those ideas that you wonder how you can possibly get started solving, let alone finish, then it all just unravels beautifully!
on 23. November 2024, 23:44 by askaksaksask
This is an exceptional puzzle, and so beautifully set. The flow is perfect. You are certainly one of the greats, Jay. Thank you for yet another stunner
on 23. November 2024, 22:44 by Jesper
Very enjoyable, thanks!
