Sunday puzzles: Japanese square
Puzzle 1
Place digits 1–7 into the grid so that no digit is repeated within a row or column. Numbers outside the grid indicate the sums of contiguous blocks of digits in that row or column. Blocks have to be separated by at least one empty square. On each row and in all columns three squares remain empty.
0887 Japanese square 10×10 3 empty 31-05-15
Puzzle 2
0888 Japanese square 10×10 3 empty 31-05-15