Day 19: Thermo and arrow 6×6
Standard sudoku rules apply. Additionally all the numbers placed in cells in a thermometer must increase in value from the circle part of the thermometer to the other end. The digits along the arrow must sum to the number in the circle.
Day 20: X/V 6×6
Standard sudoku rules apply. Additionally the cells with an X must sum to 10 and cells with a V must sum to 5. cells a chess knight’s move away from each other may not contain the same digit.
Day 21: Even/odd anti knight 6×6
Standard sudoku rules apply. Additionally a grey square must contain an even number and a grey circle must contain an odd number. Cells a chess knight’s move away from each other may not contain the same digit.
Day 22: Extra region killer 6×6
Standard sudoku rules apply. Additionally every number needs to appear once in the extra region. The numbers in cages must sum to the number in the top left corner.
Day 23: Thermo anti king 6×6
Standard sudoku rules apply. Additionally all the numbers placed in cells in a thermometer must increase in value from the circle part of the thermometer to the other end. Diagonally adjacent cells may not contain the same digit.
day 24: Extreme variant 6×6
Standard sudoku rules apply. Additionally
- All the numbers placed in cells in a thermometer must increase in value from the circle part of the thermometer to the other end
- The digits along the arrow must sum to the number in the circle
- A black dot separates two digits with a 1:2 ratio. A white dot separates two digits with a difference of 1
- The numbers in cages must sum to the number in the top left corner
- The cells with an X must sum to 10 and cells with a V must sum to 5
- A grey square must contain an even number and a grey circle must contain an odd number
Links to this years other sudoku advent posts:
