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<∧9>∨4∧5>∧1<∧8∧7>∨6>∨3∨5<∧7<∨8∨6>∨3<∨9∨1<∧4>∧2∧6>1<34>2<75<9>81<∧8>∨2∧9>∨7>∨6∨3<∨5>∧4∧7>∨3<∧9∨1<∧5>∧4∨2<∧8>∨6∧4<6>53<8>29>1<78>∧2>∧1∧7>∧6>∨5∨4>∧3<∨9∨9>∨5<∨7∨8>∨4>∧3∨6>∧2>∧1∧3<4<62<9>18>7>5