Logic Masters Deutschland e.V.

Unique Count Killer

(Published on 2. July 2026, 09:07 by Yawnus)

The final puzzle in my "Killer Count" trilogy. Enjoy!

Rules:

Normal sudoku rules apply. Digits cannot repeat within a cage, and they sum to a total which must be deduced. Each distinct cage total appears a different number of times in the puzzle.

Play with SudokuPad

Try also:
Counting Killers.
Equal Count Killer.

Solution code: Row 5


Solved by Elliott810, Piatato, SincereEngineer, Piff, Killer-Ly , raj64107, Bjd, Gilliatt, Franjo, Snookerfan, akakamereon, SKORP17, DanishDynamite, mosse, Fool on Hill, RebelSystem, terrible_casserole, ... NotVeryNeat, flatbread, DVFrank, shifman23, Shmartus, dennischen, gdc, Exigus, aries, DomDaBomb, fishlovescat, ninjcats, abed hawila, caden83, 2xdula, jsxft, pmatos, YehonatanK, ly_ra17, James B.
Full list

Comments

on 7. July 2026, 10:30 by Exigus
Super nice construction, thanks!

on 5. July 2026, 23:29 by StephenR
Great fun, thanks. Quite a gentle start but definitely has a kick to it.

Last changed on 3. July 2026, 21:39

on 3. July 2026, 20:06 by VitP
SPOILERS AHEAD:
strong focus on basic sudoku keeps this at level 2.
the cage sums are really quite easy.
hints.
1) what is the secret ? how many ways can you get that ? (N=1 taken)
2) what is the lowest sum for an 8-cell cage ? how many cells do you need to get that high ? (N=2 taken)
3) is 45 divisible by 2 ? how many 25 cages can there be ? (--> N=3,4 taken)
4) N=5 forced. what's the minimum value for those cages ?
5) box 9 is strongly forced.

Last changed on 3. July 2026, 10:42

on 3. July 2026, 10:35 by brskri
Appears daunting at first, but this is approachable when looked at the right way. In the end, there was nothing too complex here. Perfect the way one box in the puzzle is the key to unlocking the sum totals. Low end of 3* for me. Really enjoyed this!

on 2. July 2026, 21:29 by Fool on Hill
Really nice puzzle - at the harder end of 3* for me, but some nice clean logic to uncover.

on 2. July 2026, 19:42 by DanishDynamite
A very enjoyable hour. Thanks!

on 2. July 2026, 18:28 by Snookerfan
Sublime! Such an original ruleset. Brilliant setting leads to a smooth solve after a clever break-in. Thanks

on 2. July 2026, 18:01 by Franjo
Thank you very much for creating and sharing this fantastic puzzle. Awesome break-in!

on 2. July 2026, 10:37 by Piatato
Very nice!

on 2. July 2026, 10:35 by Elliott810
Absolutely brilliant puzzle! And a worthy final of your lovely series. Thank you:)

Difficulty:3
Rating:97 %
Solved:77 times
Observed:0 times
ID:000TJT

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Solution code:

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