idnr: 2198
8+
20+
14+
5+
20+
9+
7+
30+
17+
12+
26+
28+
5+
18+
6+
13+
14+
19+
5+
20+
20+
6
5+
17+
13+
17+
15+
16+
Difficulty: Impossible ()
idnr: 2890
17+
3/
144*
135*
48*
18+
12+
23+
12*
15+
90*
7+
22+
16*
1008*
504*
15+
2/
27+
32*
1728*
45*
15*
32*
2/
4/
135*
11+
Difficulty: Difficult ()
idnr: 2991
1680*
108*
45*
180*
4-
378*
84*
15+
6*
4
45*
3-
4
18*
56*
10+
30*
5376*
21*
378*
216*
3-
16*
5-
16+
108*
18*
224*
80*
Difficulty: Medium ()
idnr: 3052
8*
1134*
180*
12960*
28*
6*
192*
28*
18*
120*
420*
10*
54*
240*
112*
42*
48*
504*
5*
180*
24*
16*
21*
54*
315*
72*
24*
2*
Difficulty: Medium ()