2x4=2x9=4x4=7x3=
4x1=8x8=9x5=5x4=
6x5=2x5=3x2=8x8=
8x8=7x3=7x1=3x6=
5x5=1x1=9x2=6x9=
2x3=5x3=2x8=6x7=
3x9=7x6=4x5=8x1=
2x2=3x8=2x6=2x5=
9x9=7x4=4x2=7x7=
7x3=8x9=9x2=1x3=
9x9=2x3=2x7=4x2=
3x1=9x1=5x9=1x9=
1x4=6x1=6x9=1x2=
8x5=9x1=3x7=4x5=
6x1=9x2=9x9=7x1=
6x9=1x6=6x7=5x3=
2x3=5x3=3x2=8x5=
1x4=2x6=1x7=6x3=
6x2=7x7=8x8=7x9=
7x6=3x9=6x4=2x7=
5x5=3x5=4x6=3x3=
4x5=9x8=7x2=2x5=