d3:  bu753-5-Feb- : 2 solutions 
CRACK needed :  78240 ms    GC time : 1070 ms

d4.2: bu973-5-Feb- : 8 solutions
CRACK needed :  1186100 ms    GC time : 27180 ms

d4.4: bu428-5-Feb- : 4 solutions
CRACK needed :  1393240 ms    GC time : 29620 ms
***** Zero divisor when printing

d4.6: bu98-5-Feb- : 3 solutions
CRACK needed :  1098960 ms    GC time : 28750 ms

d4.5: bu403-5-Feb- : 1 solution
CRACK needed :  527920 ms    GC time : 12790 ms

d6: