idnr: 1529
12+
36*
12+
168*
14+
14+
12*
70*
42*
18+
90*
7+
17+
15+
11+
20*
11+
168*
17+
18+
16+
Difficulty: Impossible ()
idnr: 11691
30*
120*
840*
1-
576*
6*
112*
40*
84*
24*
576*
784*
5-
4-
3-
20*
21*
2-
392*
12*
48*
120*
Difficulty: Very Difficult ()
idnr: 4115
42*
17+
19+
12+
3-
8+
2/
70*
25+
10+
1-
9+
1008*
15*
13+
60*
5/
672*
5+
32*
5-
17+
Difficulty: Impossible ()
idnr: 7780
17+
18+
7+
12+
17+
7/
9+
2-
21+
4/
9+
26+
5+
16+
1-
11+
5-
13+
1-
21+
2-
9+
13+
Difficulty: Impossible ()