idnr: 1871
12+
18*
4+
70*
9*
10*
15+
56*
12*
9+
54*
192*
15+
31+
7
7+
10+
10+
21+
17+
15+
24+
486*
1600*
12+
672*
15+
3*
12+
Difficulty: Medium ()
idnr: 3196
18+
13+
15+
16+
12+
22+
29+
8+
6
12+
2/
29+
17+
18+
8+
6/
2
18+
19+
29+
14+
15+
13+
20+
13+
3-
7+
4/
Difficulty: Impossible ()
idnr: 2136
2352*
17+
540*
21+
6-
4-
8-
7+
6*
72*
18*
12+
1-
30*
4-
11+
11+
1-
15+
60*
19+
144*
17+
30+
270*
15+
7*
7-
Difficulty: Impossible ()
idnr: 4300
13+
72*
7+
420*
54*
5670*
8*
8/
54*
525*
28+
11+
40*
12+
15*
216*
168*
25+
30*
1890*
3/
1728*
15+
19+
7
6/
Difficulty: Impossible ()