MainpageFractalsBirthprimesWordBabygenTexturizeProgramsPhonewordData MatrixMap
SudokuSudokutoWordokuCodokuSudoku3DSudokuGTKakuroFillominoHitoriArukone
HashiShuffleBogglemPuzzleCalcuDokuSangerProbabilityLærer

Force Double Edge(FDE)

Look for doubles at the border, it can pay off

2 2

2 2