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.
3<∨5<∧6∧7>∨2<∧4∧1<∧9>∨8∨1<∧7<∧8∨3<∧6<∧9∨4<∧5>∨2∧2<9>45<8>16>3<74>∧3>∨1∧2<∧7>∨6∧9>∨8>∨5∨6>∧2<∧9∨4<∧5<∨8∨7>∨1<∧3∧7<8>59>1<32<6>48>∧4>∨3∨6<∧9>∨7∨5>∨2>∧1∧9>∨1<∧2∧8>∨4<∨5∨3<∧7>∨6∧5<6<71<3>28>4<9