unit 35 begin author tailor source www.playsudoku.ru title lsh_12_1_004 puzzle lightshadow size 12 problem - ... - 4 - 1 - ... - 2 - - - - - 3 - ... - 1 - - 11x - - 8x - - - 8x - ... - 9x - - - 4 - 5 - - - 5 12 - 3 - 4x - ... - 6 - 4x - ... - 2x - - 3x - - 4x 4 - - 8 - ... - 7x - 4...