Puzzle rules:
1. Normal sudoku rules apply.
2. Japanese Sum: shade some cells so that the outside clues indicate the sums of the contiguous shaded cells in that row or column. A number indicates the sum of a complete contiguous block. A question mark (?) indicates that a contiguous block sum to a single-digit number and a double question mark (??) indicates that a contiguous block sums to a double-digit number. An asterisk implies that any number of blocks may exist, including zero. The clues are provided in the correct order (left-to-right, or top-to-bottom), and there is at least one unshaded cell between each pair of clued blocks.
3. Cross the Streams: the shaded cells form a single orthogonally connected group. No 2×2 area within the grid can be totally shaded.
You can play the puzzle online using the following link: Penpa+
You can check the following 6x6 example to visualize how the rules work. Also, you can give it a try here
Hope you have fun!
Lösungscode: Row 7 (9 digits from left to right) followed by the length in cells of each of the shaded segments from top to bottom for column 3. (for example: in the 6x6 puzzle, the length of shaded segments in column 4 is: 211)
am 19. Juli 2024, 23:35 Uhr von StephenR
Another little gem, thanks.
am 22. März 2024, 17:33 Uhr von Christounet
Very nice ! The second part of the puzzle was much harder for me.
am 28. April 2023, 06:04 Uhr von panthchesh
Beautiful puzzle. But what's the picture supposed to be?
am 31. März 2023, 15:27 Uhr von Krokant
Lovely puzzle. :)
am 21. März 2023, 11:37 Uhr von Mr.Menace
Lovely puzzle with smooth but intricate logic! Thanks a lot Abed!
am 14. März 2023, 04:21 Uhr von Xendari
Very nice! Fun throughout, very interesting shading logic
am 14. März 2023, 00:33 Uhr von Piatato
Very nice and rewarding puzzle! The shading interacts with everything so well!
am 13. März 2023, 22:36 Uhr von Jesper
Very nice, abed! I like how much CtS logic you actually managed to fit into the puzzle.
am 13. März 2023, 15:56 Uhr von Playmaker6174
A really gorgeous and satisfying puzzle! It’s interesting how the connection of shaded cells can lead to lots of interesting and cool logic :)
[also the 2 stars combo in a column was quite funny there x)]