Circle Back
(Published on 1. March 2026, 20:00 by Sotehr)
PUZZLE
Play [Circle Back] on SudokuPad.
RULES
RCB Sudoku: RCB Sudoku Rules apply; place the digits 1-6 and the letters R, C, and B, once in every row, column, and 3x3 box. For R, C, or B, their value is equal to their row, column, or box respectively.
Quadruples: Each digit or letter in a circle must appear in the surrounding four cells at least once.
Duality: Each Quadruple also contains an invisible arrow, where one cell must equal the sum of the other three.
Quadruples: Each digit or letter in a circle must appear in the surrounding four cells at least once.
Duality: Each Quadruple also contains an invisible arrow, where one cell must equal the sum of the other three.
NOTES
Expected Difficulty: 4.5 stars
Solution code: Box 5, normal reading order.
Solved by SKORP17, mateo99, Laake, Da Letter El, Dentones, SennyK, Scojo, palpot, snowbaby, Zzzzz..., oiyad, Leaving Leaves
Comments
on 3. March 2026, 18:39 by SennyK
Really nicely done, lovely puzzle! :-)
on 2. March 2026, 02:11 by mateo99
Smooth flow, nice setting, great puzzle!
