How Many Primes Fit In A Box?
(Published on 22. June 2025, 05:00 by Will Power)
Come to think of it, how many odd numbers can be in a prime cage? Think about both of these before you start.
Normal Sudoku rules apply.
ARROWS- Numbers on arrows sum to the number in the arrow's pill. Pills are read from left to right or top to bottom.
KILLER CAGES- Numbers in all cages each sum to prime numbers that must be determined by the solver.
KROPKI PAIRS- Numbers with a black dot between them are in a ratio of 2:1. Not all possible dots are shown.
Cells with the number 1 and the number 9 are NEVER orthogonally adjacent (share an edge) in the whole puzzle.
F-Puzzles
Solve on SudokuPad
Solution code: Row 8.
Last changed on -
Solved by VitP, jalebc, flaemmchen, zuzanina, rubbeng, henter, Amedoru, MarthaB, Chelo, Aaravos18, tnop62830, SKORP17, tangobunni, randomra, kriskos, drbs, pms_headache, MaxSmartable, rlg, lucymzme, geronimo92, yusuf17, Julianl, Tiffanatisk, Saskia11, Montikulum, Yarglof, metacom, HighEagle, zrbakhtiar, Ragna, Megalobrainiac
Comments
on 21. July 2025, 23:17 by Ragna
Beautiful puzzle! That was much fun to solve. Thank you. :-))
Last changed on 30. June 2025, 16:54on 27. June 2025, 20:34 by yusuf17
Strange thing: the final solution seems to have an pair of adjacent cells with a 1 and a 9.
I had overlooked this rule and ended up with a deadly pattern involving six cells in the first 3 columns.
Then I checked the rules again and saw the 1-9 rule.
Strange.
@yusuf17 Please don't overlook any rules. The puzzles we create have a unique solution when ALL of the rules are obeyed. I cannot control the output of your work when you do not take all rules into account. Peace to you. -Will Power
on 22. June 2025, 06:29 by VitP
FIRST
very intricate, but still pretty easy, because each arrow or cage can be solved IN ISOLATION, until you are close to the end.
hint: two secrets plus the answer = an important result.
