Extended Sudoku rules apply: Place the digits 0-9 in each row, column, and box, however there will be one digit in each that does not fit. This digit can vary between rows, columns, and boxes and needs to be determined by the solver.
XV: Digits separated by an X sum to 10, those separated by a V sum to 5. All Xs and Vs have been given.
Region-Sum: Along each blue line, the digits in every box it passes through have the same sum.
Kropki: Digits separated by a black dot must be in a 2:1 ratio.
Previous puzzles form the series:
Solution code: Row 5
today, 01:17 by itsid
that was fun,
when I (more or less immediately) saw the break in I was quite proud, just to me utterly amazed shortly afterwards because of the unexpected digit (well I bet you know)
To be honest that tricked me enough to verify my placed digits (yeah I know sorry)
luckily the only thing that got changed was my confidence :D
but that "oh no, what'd I do.. need to check" is a third star in my book ;-)
thanks for the series I will work my way through within the next few days.
on 25. April 2026, 13:12 by snuuba
Very cool idea. Took some time to adjust my brain for the extra digit, but once there it flowed nicely.
My favorite bit was one of the region sum lines, as soon as I saw what could happen, I was wishing it would and it did.
Many thanks for excellent puzzle
on 17. February 2026, 13:40 by gadgetgreen
Added credits to The Bard and their XOV series.
on 11. February 2026, 21:40 by AnebodaSlatorp
Fun times!
on 11. February 2026, 01:30 by Jasperrr
That's what I get for skimping the rules.. I completely missed the 0 being a possible digit. Thought I was right on track till I ran into a brick wall. Will have to retry, fun puzzle though!
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