Godoku
(Published on 25. May 2024, 20:28 by sfushidahardy)
Rules:
- Standard 9x9 go rules... I mean, sudoku rules apply.
- White go stones: if a single white stone is on a corner of a cell, the digit in the cell is the number of digits with the same parity as itself in the diagonal beyond the white stone.
- Black go stones: if a single black stone is on a corner of a cell, the digit in the cell is the number of digits with the opposite parity from itself in the diagonal beyond the black stone.
- If multiple stones are on the corners of a cell, the digit in the cell is the sum of the values computed as above for each stone.
- Tesuji: The cells indicated with 一, 二, and 三 (1, 2, and 3) contain digits in strictly ascending order.
Here's an example of what a 6x6 solution might look like, to explain the go-stone rules. The relevant cells have been coloured to indicate parity.
Solution code: The digits in row 9.
Comments
on 2. September 2024, 01:19 by yttrio
After navigating a somewhat unfamiliar fuseki, I entered the middle game with some confidence, only to find myself in a tricky capturing race where my reading skills were put to the test. Fortunately, I found the correct shape point and was able to coast in the endgame for a 3.5-point victory over this magnificent puzzle!
on 26. July 2024, 06:04 by MaizeGator
Striking balance of simplicity and beauty. The well-placed clues are very powerful!
on 26. May 2024, 21:41 by sfushidahardy
Changed to an example which doesn't hint at the break-in, and coloured cells for clarity.
on 26. May 2024, 20:50 by sfushidahardy
Added example image.
on 26. May 2024, 18:09 by bansalsaab
Hello sfushidahardy, can you give an example of this ruleset please.
Reply: I've added an example.
on 26. May 2024, 07:03 by cristophermoore
Some lovely logic - great how the ruleset came together. I had to do some scanning but it was still a lot of fun. Thank you!
on 26. May 2024, 05:15 by SynVT
fun one to solve, love the sequencing
on 26. May 2024, 00:17 by SudokuHero
Truly beautiful logic on a visually stunning grid. I love the theme as well.
on 26. May 2024, 00:12 by efnenu
There were so many moments when I asked myself how I didn't see the next step earlier! Thank you for this great puzzle and the fresh ruleset.
