Gomoku Sudoku
(Published on 3. September 2026, 11:54 by Kutsumi Hane)
Rules:
Here is a Gomoku endgame after move 38, with the black and white circles representing the stones. You will play as Black ● and have to form an Open Four — four consecutive stones of the same color with both ends open — on move 43 to secure a win. White ○ always plays optimally.
After that:
After that:
Normal Sudoku rules apply: each row, column, and 3×3 box contains the digits 1-9 exactly once. Additionally:
-
·Fog:
Entering 9 in the correct cell for move 43 will clear the fog; the white stone ○ closest to that cell is 1.
·Odd: Black circles ● contain odd digits.
·Counting Circles: A digit in a White circle indicates the number of circles containing that digit.
·Anti-V: No two orthogonally adjacent cells may contain digits that sum to 5.
Here you can solve the puzzle online: Solve on SudokuPad
The difficulty is probably 4 stars. I wish you joyful solving!
Hint:
| · | What happens if the Counting Circles contain all four even digits? |
| · | In which rows can the 2s in Counting Circles be placed? |
Solution code: Row 3
Last changed on on 18. September 2026, 18:00
Solved by bansalsaab, kangaroo, ZornsLemon, yangduoxing
Comments
on 3. September 2026, 19:28 by bansalsaab
That was beautiful. I stared at it for a long time because I forgot the last rule but after that it was smooth.
