SudokuGT
Greater-than sudoku: inequality signs instead of givens.
Greater-than sudoku: no givens, only inequality signs between neighbouring cells. Fill in 1–N per row, column and box so every inequality holds.
2<∧4<∨6∧5<∧8<∨9∨7>∨1<∧3∧8>∨1<∧9∨7>∨3>∧2∧6>∧5>∨4∧5<7>31<4<68>2<97<∨9>∨4∧3>∧2>∧1∧5<∨6<∧8∨3>∨2<∧8∨6>∧5>∧4∧1<∧9>∨7∨1<6>59>7<83<4>24<∧8>∨1∧2<∧6<∧7∨9>∨3<∧5∨6>∧3<∧7∨4<∧9>∨5∨2<∧8>∨1∧9>5>28>1<34<7>6