idnr: 2408
14+
5+
2
12+
16+
16+
25+
12+
21+
22+
14+
10+
25+
10+
19+
19+
5+
9+
12+
19+
13+
12+
11+
11+
4+
13+
15+
10+
7+
20+
2
Difficulty: Impossible ()
idnr: 1158
15+
19+
112*
27+
9+
48*
72*
16*
15*
13+
32*
9
16+
2/
12+
9+
108*
54*
224*
189*
12+
19+
5
6+
72*
576*
17+
6*
126*
Difficulty: Difficult ()
idnr: 3222
192*
160*
27*
72*
14*
10*
48*
7*
15*
27*
196*
12*
9
2240*
72*
1260*
3*
90*
9*
8*
1440*
960*
4
252*
12*
224*
27*
6*
63*
30*
Difficulty: Medium ()
idnr: 4151
720*
9+
2/
18+
378*
16+
360*
25+
7/
5-
9+
1344*
18+
13+
14*
3/
25+
18+
40*
140*
378*
64*
378*
15+
4/
5*
11+
Difficulty: Very Difficult ()