Medieval Upheaval 3
(Published on 22. January 2024, 08:30 by Nordy)
The third puzzle in the Chess Sums series (the first can be found here and the second here)—now with bishops! The bishops proved to be very fascinating, so this may be my personal favorite of the series. Difficulty estimated at 4 stars if you remember to do a little Sudoku along the way.
Rules:
Chaos Construction: Divide the grid into regions, each consisting of nine orthogonally-connected cells. Every row, column, and region must contain the digits 1 to 9 once each.
Chess Sums
- Squares—King Sums: A digit in a square gives the sum of all digits that share its region and are a king’s move away.
- Circles—Knight Sums: A digit in a circle gives the sum of all digits that share its region and are a knight’s move away.
- Diamonds—Bishop Sums: A digit in a diamond gives the sum of all digits that share its region and are a bishop’s move away.
For a description of how each chess piece moves, see the "Moves" section of this Wikipedia article.
Example: Below is an example region with valid square, circle, and diamond clues. The squared 6 sees 4+2 by king's move, the circled 8 sees 3+5 by knight's move, and the diamond 5 sees 4+1 by bishop's move. Note that for diamonds/bishops, region borders do not block vision.
Solve Online:
- SudokuPad
- SudokuPad (with letters added in the corner of clue cells: K=Kings, N=Knights, B=Bishops. This may help to keep track of which clue is which)
- Penpa+ (answer check on Blue Sudoku and Green Edges)
Solution code: Row 8 with dashes for region borders (ex: 35-2187-96-4)
Comments
on 28. June 2024, 01:29 by Piatato
Super smooth and fun, thanks!
on 25. June 2024, 23:04 by wuc
Masterpiece. What a journey. Thx. Big fan.
on 8. April 2024, 20:19 by Christounet
Great ! Wondering what chess move you could add for #4 ;)
on 6. February 2024, 23:04 by blackjackfitz
Fantastic construction, thank you!
on 29. January 2024, 04:46 by mathpesto
Can't believe how many beautiful deductions managed to be squeezed into this puzzle. This is definitely up there for me as one of the best chaos constructions I've ever solved. :)
on 27. January 2024, 04:35 by LilGungaJr
What a fantastic puzzle. The whole solve was beautiful all the way through, and this is likely my favourite puzzle from Nordy!
Super glad I got to test-solve this in the CTC discord.
on 24. January 2024, 17:12 by ademjaz
That is the most organized chaos construction I have ever seen! Brilliant construction, loved it!
on 24. January 2024, 03:43 by Steven R
Brilliant! Super smooth :)
on 23. January 2024, 18:13 by damasosos92
Wow. Fascinating how bishops added more insight to the the Chess Sums. Very cool puzzle.
on 23. January 2024, 18:13 by wisty
Amazing puzzle! Clean and beautiful solve path ♡
on 23. January 2024, 18:09 by Myxo
Stunning construction!
on 23. January 2024, 17:19 by marcmees
very nice one. thanks.
on 23. January 2024, 09:32 by Lavender Gooms
Very nice. Loved figuring out the logic of the breakin.
on 23. January 2024, 01:46 by KNT
awesome puzzle!
on 22. January 2024, 23:23 by bansalsaab
Amazing construction.
on 22. January 2024, 21:45 by PetLov
Well that was fun :-)
Have to find the time to solve the previous puzzles in the series now.
on 22. January 2024, 20:29 by Snookerfan
Brilliant puzzle in a great series! Thank you
on 22. January 2024, 19:51 by yttrio
The bishop sums are a very welcome addition to the series! There were a couple of places where things seemed impossible at first, but it was very satisfying to work through with some really neat region-building!
