Normal sudoku rules apply. Place the digits 1-4 once each in every row, column, and 2x2 box.
Thermometer: digits must strictly increase along each thermometer, starting from the bulb.
Cells connected by a V sum to 5. Not all Vs are given.
Digits may not repeat along marked diagonals.
Solve in VariantDoku (iOS) or on SudokuPad.
Lösungscode: Enter the digits of row 1.
Gestern, 15:01 Uhr von superkinkel
I there ever can be a 4x4 more difficult than one star, this is it.
am 8. Juni 2026, 00:54 Uhr von SanFranSam
@electricblue thanks for the hint regarding colouring. Never would have thought of that and given up.
am 7. Juni 2026, 18:32 Uhr von pjot
I loved this. Went from stumped to solved in 1 minute
am 7. Juni 2026, 18:18 Uhr von electricblue
Interesting interaction with all the rules. I didn't expect to be coloring cells on a 2x2 but that was a fun surprise
am 7. Juni 2026, 14:04 Uhr von Freegerator
Baffled why this is getting poorly rated. It’s a fun couple minutes, and it’s hard to have an idea come across in a 4x4 grid