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.
1<∧7>∨3∨6>∧2<∧9∨4<∨8>∨5∧9>∨5>∧2∧8>∨7>∨4∨3>∧1<∧6∧4<8>63<5>17>2<92<∧9>∨4∧7>∨6<∨8∨1<∧5>∧3∧7>∨6<∨8∨5>∨1<∧3∨2<∧9>∨4∧5>3>14<9>26<7<83<∧4<∨7∨1<∧8>∨5∧9>∨6>∨2∨6>∧2<∨5∧9>∨3<∧7∨8>∨4>∨1∧8>1<92<4<65>3<7