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.
9>∨5>∧4∨3<∧6<∨7∨1<∧8>∨2∨7<∨8>∨2∨9>∨4<∨5∧6>∧3>∧1∧3<4>18>2<67>5<96>∨1<∧3∧5<∨9>∨2∧8>∨4<∧7∨2<∧6<∧7∧1<∧8>∨3∨4<∨9>∨5∧8>7<94<5>13>2<64>∧2<∧8∨7>∨1<∧9∨5<∧6>∨3∧5>∨3<∧6∨2<∧7<∨8∨9>∨1<∧4∧1<9>56>3<42<7<8