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