idnr: 1948
14+
24+
12*
54*
24*
10*
10+
1960*
14+
13+
54*
13+
22+
14+
25+
5/
1-
22+
20+
8/
504*
16+
16*
14+
90*
42*
11+
1-
Difficulty: Very Difficult ()
idnr: 373
2-
210*
3024*
9*
12*
1-
1-
144*
1-
2-
162*
12*
4*
8*
60*
64*
270*
84*
144*
21*
2*
28*
30*
8
45*
3780*
1728*
216*
8
2-
Difficulty: Medium ()
idnr: 853
16+
17+
27+
11+
8+
16+
12+
8+
22+
15+
16+
17+
11+
15+
15+
11+
9+
8+
16+
17+
33+
13+
10+
10+
13+
11+
13+
8+
7+
Difficulty: Impossible ()
idnr: 2142
12+
12+
17+
3024*
40*
14+
140*
64*
8*
9+
84*
216*
21+
28*
8+
315*
8
17+
31+
72*
42*
4*
20+
12+
29+
8+
2
Difficulty: Impossible ()