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Sudoku and variants

The portal contains almost all kinds of Sudoku variants: standard, killer and jigsaw, for example, but there is no limit to the creativity of the puzzle authors here. What about trying a 3D-Sudoku, Spiral Sudoku, or even a Sudoku Rallye (which contains other puzzle types, too). Enjoy browsing!

DescriptionsolvedRating
unsolvedFog of War #4 Numbered Rooms.
by Sudonym (on 6. November 2025, 14:39)
4151
90 %
unsolvedBitclock: new constraint introduction puzzle (dynamic fog)
by Killer Joe (on 6. November 2025, 14:35)
1031
91 %
unsolvedHoly Moly (Chaconopia)
by Mad-Tyas (on 6. November 2025, 14:01)
75
N/A
unsolvedThe Loneliest Number
by Cyprane (on 6. November 2025, 08:06)
3511
87 %
unsolvedLittle Killers in the Fog
by fogpictures (on 6. November 2025, 00:35)
2821
91 %
unsolvedPancho and Lefty
by jwsinclair (on 5. November 2025, 22:55)
1713
98 %
unsolvedThe Key / Der Schlüssel
by Caterpillar (on 5. November 2025, 21:37)
193
83 %
unsolvedPisces
by googuee (on 5. November 2025, 21:35)
1681
88 %
unsolvedHerniated !Ring-8
by brtmns (on 5. November 2025, 19:14)
1721
96 %
unsolvedErica 4
by SennyK (on 5. November 2025, 17:15)
3151
91 %
unsolvedA Short Detour
by Blobz (on 5. November 2025, 16:00)
2191
93 %
unsolvedChamber 5: Portaless
by josebastian8 (on 5. November 2025, 15:38)
121
N/A
unsolvedKnotty Whispers
by billybeth (on 5. November 2025, 15:29)
542
92 %
unsolvedKiller Fortune Teller
by Manta-Ray (on 5. November 2025, 14:55)
213
88 %
unsolvedFlip the Script (Entropy Mirror + RSL)
by sujoyku (on 5. November 2025, 13:20)
1243
97 %
unsolvedCrudely Drawn Stickman
by Wiggel (on 5. November 2025, 10:30)
193
75 %
unsolvedDingDong's Killer #1
by dingdongeu (on 5. November 2025, 09:37)
993
91 %
unsolvedDutch Flat Mates: Binary Sum Arrows
by damo_89 (on 5. November 2025, 08:00)
672
96 %
unsolvedRank Up 20.Farkov - Whisper
by Farkov (on 5. November 2025, 06:38)
72
N/A
unsolvedBeaded Thread
by saltviolet (on 5. November 2025, 02:49)
542
90 %
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