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.
3<∧8>∧1∧9>∨4>∨2∧5<∧7>∨6∨5<∧9>∨6∨7>∨3<∨4∧8>∨1<∧2∧7>4<52>1<86>3<92<∧6<∨8∨4<∨7<∨9∨3<∧5>∨1∧9>∨3>∧2∧1<∧6>∧5∨7>∨4<∧8∨1<5<76<9>32<8>48>∨7<∨9∨3>∧2>∧1∧4<∧6>∨5∧4>∧1<∧3∧8>∨5<∧6∧9>∨2<∧7∨6>2<45<8>71<9>3