SudokuGT
Greater-than sudoku: inequality signs instead of givens.
How to play
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>∧1<∧5∧3<∧8>∨4∧7>∧6<∨9∨9>∨3<∧6∨5>∧2<∧7∨8>∨4>∨1∧7<8>46<9>12<3<56<∨9>∨7∨1<∧4<∧5∨3<∧8>∨2∧4>∧2>∧1∧8>∧6>∧3∨9>∨5<∨7∨8>5>39>7>26>1<41<∧6>∧2∧4>∨3<∨9∨5<∨7<∧8∨5<∨7<∨8∧2>∧1<∧6∧4<∨9>∨3∧3<4<97>5<81<2<6