idnr: 1875
7+
13+
16+
18+
13+
8+
13+
9+
7+
18+
11+
15+
11+
1
6/
7+
11+
11+
Difficulty: Impossible ()
idnr: 4226
432*
70*
20*
24*
28*
6*
210*
30*
49*
42*
12*
30*
4-
100*
72*
84*
Difficulty: Medium ()
idnr: 506
16+
2/
9+
19+
11+
12+
15+
6+
21*
12+
8+
280*
20+
720*
30*
Difficulty: Impossible ()
idnr: 2600
10+
20*
13+
70*
11+
2-
3/
140*
8+
180*
15*
60*
14*
420*
28+
Difficulty: Very Difficult ()