Home.
| skews | single | | double
|
| 4:1349
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=d | b♦2=c | b♦3=a | b♦12=a | b♦13=c
| b♦23=d
|
| c♦1=b | c♦2=d | c♦3=a | c♦12=a | c♦13=d
| c♦23=b
|
| d♦1=c | d♦2=b | d♦3=a | d♦12=a | d♦13=b
| d♦23=c
|
| invertible? | yes | yes | no | | no | yes | yes
|
| skews | single | | double
|
| 4:1948
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=c | b♦2=d | b♦3=a | b♦12=a | b♦13=d
| b♦23=c
|
| c♦1=d | c♦2=b | c♦3=a | c♦12=a | c♦13=b
| c♦23=d
|
| d♦1=b | d♦2=c | d♦3=a | d♦12=a | d♦13=c
| d♦23=b
|
| invertible? | yes | yes | no | | no | yes | yes
|
| skews | single | | double
|
| 4:3526
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=c | b♦2=d | b♦3=a | b♦12=a | b♦13=d
| b♦23=c
|
| c♦1=a | c♦2=d | c♦3=b | c♦12=b | c♦13=d
| c♦23=a
|
| d♦1=c | d♦2=a | d♦3=b | d♦12=b | d♦13=a
| d♦23=c
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:4375
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=d | b♦2=c | b♦3=a | b♦12=a | b♦13=c
| b♦23=d
|
| c♦1=d | c♦2=a | c♦3=b | c♦12=b | c♦13=a
| c♦23=d
|
| d♦1=a | d♦2=c | d♦3=b | d♦12=b | d♦13=c
| d♦23=a
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:5196
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=c | b♦2=a | b♦3=d | b♦12=d | b♦13=a
| b♦23=c
|
| c♦1=a | c♦2=b | c♦3=d | c♦12=d | c♦13=b
| c♦23=a
|
| d♦1=c | d♦2=b | d♦3=a | d♦12=a | d♦13=b
| d♦23=c
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:6726
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=a | b♦2=c | b♦3=d | b♦12=d | b♦13=c
| b♦23=a
|
| c♦1=b | c♦2=a | c♦3=d | c♦12=d | c♦13=a
| c♦23=b
|
| d♦1=b | d♦2=c | d♦3=a | d♦12=a | d♦13=c
| d♦23=b
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:7359
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=d | b♦2=a | b♦3=c | b♦12=c | b♦13=a
| b♦23=d
|
| c♦1=b | c♦2=a | c♦3=d | c♦12=d | c♦13=a
| c♦23=b
|
| d♦1=c | d♦2=a | d♦3=b | d♦12=b | d♦13=a
| d♦23=c
|
| invertible? | yes | no | yes | | yes | no | yes
|
| skews | single | | double
|
| 4:8725
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=a | b♦2=d | b♦3=c | b♦12=c | b♦13=d
| b♦23=a
|
| c♦1=a | c♦2=b | c♦3=d | c♦12=d | c♦13=b
| c♦23=a
|
| d♦1=a | d♦2=c | d♦3=b | d♦12=b | d♦13=c
| d♦23=a
|
| invertible? | no | yes | yes | | yes | yes | no
|
| skews | single | | double
|
| 4:9546
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=c | b♦2=a | b♦3=d | b♦12=d | b♦13=a
| b♦23=c
|
| c♦1=d | c♦2=a | c♦3=b | c♦12=b | c♦13=a
| c♦23=d
|
| d♦1=b | d♦2=a | d♦3=c | d♦12=c | d♦13=a
| d♦23=b
|
| invertible? | yes | no | yes | | yes | no | yes
|
| skews | single | | double
|
| 4:10559
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=a | b♦2=c | b♦3=d | b♦12=d | b♦13=c
| b♦23=a
|
| c♦1=a | c♦2=d | c♦3=b | c♦12=b | c♦13=d
| c♦23=a
|
| d♦1=a | d♦2=b | d♦3=c | d♦12=c | d♦13=b
| d♦23=a
|
| invertible? | no | yes | yes | | yes | yes | no
|
| skews | single | | double
|
| 4:12137
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=d | b♦2=a | b♦3=c | b♦12=c | b♦13=a
| b♦23=d
|
| c♦1=d | c♦2=b | c♦3=a | c♦12=a | c♦13=b
| c♦23=d
|
| d♦1=a | d♦2=b | d♦3=c | d♦12=c | d♦13=b
| d♦23=a
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:12572
| a♦1=a | a♦2=a | a♦3=a
| | a♦12=a | a♦13=a
| a♦23=a
|
| b♦1=a | b♦2=d | b♦3=c | b♦12=c | b♦13=d
| b♦23=a
|
| c♦1=b | c♦2=d | c♦3=a | c♦12=a | c♦13=d
| c♦23=b
|
| d♦1=b | d♦2=a | d♦3=c | d♦12=c | d♦13=a
| d♦23=b
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:15329
| a♦1=c | a♦2=d | a♦3=b
| | a♦12=b | a♦13=d
| a♦23=c
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=b | c♦2=d | c♦3=a | c♦12=a | c♦13=d
| c♦23=b
|
| d♦1=c | d♦2=b | d♦3=a | d♦12=a | d♦13=b
| d♦23=c
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:15608
| a♦1=d | a♦2=c | a♦3=b
| | a♦12=b | a♦13=c
| a♦23=d
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=d | c♦2=b | c♦3=a | c♦12=a | c♦13=b
| c♦23=d
|
| d♦1=b | d♦2=c | d♦3=a | d♦12=a | d♦13=c
| d♦23=b
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:17186
| a♦1=d | a♦2=c | a♦3=b
| | a♦12=b | a♦13=c
| a♦23=d
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=a | c♦2=d | c♦3=b | c♦12=b | c♦13=d
| c♦23=a
|
| d♦1=c | d♦2=a | d♦3=b | d♦12=b | d♦13=a
| d♦23=c
|
| invertible? | yes | yes | no | | no | yes | yes
|
| skews | single | | double
|
| 4:18355
| a♦1=c | a♦2=d | a♦3=b
| | a♦12=b | a♦13=d
| a♦23=c
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=d | c♦2=a | c♦3=b | c♦12=b | c♦13=a
| c♦23=d
|
| d♦1=a | d♦2=c | d♦3=b | d♦12=b | d♦13=c
| d♦23=a
|
| invertible? | yes | yes | no | | no | yes | yes
|
| skews | single | | double
|
| 4:18932
| a♦1=d | a♦2=b | a♦3=c
| | a♦12=c | a♦13=b
| a♦23=d
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=a | c♦2=b | c♦3=d | c♦12=d | c♦13=b
| c♦23=a
|
| d♦1=c | d♦2=b | d♦3=a | d♦12=a | d♦13=b
| d♦23=c
|
| invertible? | yes | no | yes | | yes | no | yes
|
| skews | single | | double
|
| 4:20380
| a♦1=b | a♦2=d | a♦3=c
| | a♦12=c | a♦13=d
| a♦23=b
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=b | c♦2=a | c♦3=d | c♦12=d | c♦13=a
| c♦23=b
|
| d♦1=b | d♦2=c | d♦3=a | d♦12=a | d♦13=c
| d♦23=b
|
| invertible? | no | yes | yes | | yes | yes | no
|
| skews | single | | double
|
| 4:21255
| a♦1=c | a♦2=b | a♦3=d
| | a♦12=d | a♦13=b
| a♦23=c
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=b | c♦2=a | c♦3=d | c♦12=d | c♦13=a
| c♦23=b
|
| d♦1=c | d♦2=a | d♦3=b | d♦12=b | d♦13=a
| d♦23=c
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:22383
| a♦1=b | a♦2=c | a♦3=d
| | a♦12=d | a♦13=c
| a♦23=b
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=a | c♦2=b | c♦3=d | c♦12=d | c♦13=b
| c♦23=a
|
| d♦1=a | d♦2=c | d♦3=b | d♦12=b | d♦13=c
| d♦23=a
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:23282
| a♦1=d | a♦2=b | a♦3=c
| | a♦12=c | a♦13=b
| a♦23=d
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=d | c♦2=a | c♦3=b | c♦12=b | c♦13=a
| c♦23=d
|
| d♦1=b | d♦2=a | d♦3=c | d♦12=c | d♦13=a
| d♦23=b
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:24213
| a♦1=b | a♦2=d | a♦3=c
| | a♦12=c | a♦13=d
| a♦23=b
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=a | c♦2=d | c♦3=b | c♦12=b | c♦13=d
| c♦23=a
|
| d♦1=a | d♦2=b | d♦3=c | d♦12=c | d♦13=b
| d♦23=a
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:26033
| a♦1=c | a♦2=b | a♦3=d
| | a♦12=d | a♦13=b
| a♦23=c
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=d | c♦2=b | c♦3=a | c♦12=a | c♦13=b
| c♦23=d
|
| d♦1=a | d♦2=b | d♦3=c | d♦12=c | d♦13=b
| d♦23=a
|
| invertible? | yes | no | yes | | yes | no | yes
|
| skews | single | | double
|
| 4:26230
| a♦1=b | a♦2=c | a♦3=d
| | a♦12=d | a♦13=c
| a♦23=b
|
| b♦1=b | b♦2=b | b♦3=b | b♦12=b | b♦13=b
| b♦23=b
|
| c♦1=b | c♦2=d | c♦3=a | c♦12=a | c♦13=d
| c♦23=b
|
| d♦1=b | d♦2=a | d♦3=c | d♦12=c | d♦13=a
| d♦23=b
|
| invertible? | no | yes | yes | | yes | yes | no
|
| skews | single | | double
|
| 4:29065
| a♦1=c | a♦2=d | a♦3=b
| | a♦12=b | a♦13=d
| a♦23=c
|
| b♦1=c | b♦2=a | b♦3=d | b♦12=d | b♦13=a
| b♦23=c
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=c | d♦2=b | d♦3=a | d♦12=a | d♦13=b
| d♦23=c
|
| invertible? | no | yes | yes | | yes | yes | no
|
| skews | single | | double
|
| 4:29262
| a♦1=d | a♦2=c | a♦3=b
| | a♦12=b | a♦13=c
| a♦23=d
|
| b♦1=a | b♦2=c | b♦3=d | b♦12=d | b♦13=c
| b♦23=a
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=b | d♦2=c | d♦3=a | d♦12=a | d♦13=c
| d♦23=b
|
| invertible? | yes | no | yes | | yes | no | yes
|
| skews | single | | double
|
| 4:31082
| a♦1=d | a♦2=c | a♦3=b
| | a♦12=b | a♦13=c
| a♦23=d
|
| b♦1=d | b♦2=a | b♦3=c | b♦12=c | b♦13=a
| b♦23=d
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=c | d♦2=a | d♦3=b | d♦12=b | d♦13=a
| d♦23=c
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:32013
| a♦1=c | a♦2=d | a♦3=b
| | a♦12=b | a♦13=d
| a♦23=c
|
| b♦1=a | b♦2=d | b♦3=c | b♦12=c | b♦13=d
| b♦23=a
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=a | d♦2=c | d♦3=b | d♦12=b | d♦13=c
| d♦23=a
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:32912
| a♦1=d | a♦2=b | a♦3=c
| | a♦12=c | a♦13=b
| a♦23=d
|
| b♦1=d | b♦2=c | b♦3=a | b♦12=a | b♦13=c
| b♦23=d
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=c | d♦2=b | d♦3=a | d♦12=a | d♦13=b
| d♦23=c
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:34040
| a♦1=b | a♦2=d | a♦3=c
| | a♦12=c | a♦13=d
| a♦23=b
|
| b♦1=c | b♦2=d | b♦3=a | b♦12=a | b♦13=d
| b♦23=c
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=b | d♦2=c | d♦3=a | d♦12=a | d♦13=c
| d♦23=b
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:34915
| a♦1=c | a♦2=b | a♦3=d
| | a♦12=d | a♦13=b
| a♦23=c
|
| b♦1=c | b♦2=d | b♦3=a | b♦12=a | b♦13=d
| b♦23=c
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=c | d♦2=a | d♦3=b | d♦12=b | d♦13=a
| d♦23=c
|
| invertible? | no | yes | yes | | yes | yes | no
|
| skews | single | | double
|
| 4:36363
| a♦1=b | a♦2=c | a♦3=d
| | a♦12=d | a♦13=c
| a♦23=b
|
| b♦1=d | b♦2=c | b♦3=a | b♦12=a | b♦13=c
| b♦23=d
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=a | d♦2=c | d♦3=b | d♦12=b | d♦13=c
| d♦23=a
|
| invertible? | yes | no | yes | | yes | no | yes
|
| skews | single | | double
|
| 4:36940
| a♦1=d | a♦2=b | a♦3=c
| | a♦12=c | a♦13=b
| a♦23=d
|
| b♦1=a | b♦2=d | b♦3=c | b♦12=c | b♦13=d
| b♦23=a
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=b | d♦2=a | d♦3=c | d♦12=c | d♦13=a
| d♦23=b
|
| invertible? | yes | yes | no | | no | yes | yes
|
| skews | single | | double
|
| 4:38109
| a♦1=b | a♦2=d | a♦3=c
| | a♦12=c | a♦13=d
| a♦23=b
|
| b♦1=d | b♦2=a | b♦3=c | b♦12=c | b♦13=a
| b♦23=d
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=a | d♦2=b | d♦3=c | d♦12=c | d♦13=b
| d♦23=a
|
| invertible? | yes | yes | no | | no | yes | yes
|
| skews | single | | double
|
| 4:39687
| a♦1=c | a♦2=b | a♦3=d
| | a♦12=d | a♦13=b
| a♦23=c
|
| b♦1=a | b♦2=c | b♦3=d | b♦12=d | b♦13=c
| b♦23=a
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=a | d♦2=b | d♦3=c | d♦12=c | d♦13=b
| d♦23=a
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:39966
| a♦1=b | a♦2=c | a♦3=d
| | a♦12=d | a♦13=c
| a♦23=b
|
| b♦1=c | b♦2=a | b♦3=d | b♦12=d | b♦13=a
| b♦23=c
|
| c♦1=c | c♦2=c | c♦3=c | c♦12=c | c♦13=c
| c♦23=c
|
| d♦1=b | d♦2=a | d♦3=c | d♦12=c | d♦13=a
| d♦23=b
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:42723
| a♦1=c | a♦2=d | a♦3=b
| | a♦12=b | a♦13=d
| a♦23=c
|
| b♦1=c | b♦2=a | b♦3=d | b♦12=d | b♦13=a
| b♦23=c
|
| c♦1=d | c♦2=a | c♦3=b | c♦12=b | c♦13=a
| c♦23=d
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:43158
| a♦1=d | a♦2=c | a♦3=b
| | a♦12=b | a♦13=c
| a♦23=d
|
| b♦1=a | b♦2=c | b♦3=d | b♦12=d | b♦13=c
| b♦23=a
|
| c♦1=a | c♦2=d | c♦3=b | c♦12=b | c♦13=d
| c♦23=a
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:44736
| a♦1=d | a♦2=c | a♦3=b
| | a♦12=b | a♦13=c
| a♦23=d
|
| b♦1=d | b♦2=a | b♦3=c | b♦12=c | b♦13=a
| b♦23=d
|
| c♦1=d | c♦2=b | c♦3=a | c♦12=a | c♦13=b
| c♦23=d
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | no | yes | yes | | yes | yes | no
|
| skews | single | | double
|
| 4:45749
| a♦1=c | a♦2=d | a♦3=b
| | a♦12=b | a♦13=d
| a♦23=c
|
| b♦1=a | b♦2=d | b♦3=c | b♦12=c | b♦13=d
| b♦23=a
|
| c♦1=b | c♦2=d | c♦3=a | c♦12=a | c♦13=d
| c♦23=b
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | yes | no | yes | | yes | no | yes
|
| skews | single | | double
|
| 4:46570
| a♦1=d | a♦2=b | a♦3=c
| | a♦12=c | a♦13=b
| a♦23=d
|
| b♦1=d | b♦2=c | b♦3=a | b♦12=a | b♦13=c
| b♦23=d
|
| c♦1=d | c♦2=a | c♦3=b | c♦12=b | c♦13=a
| c♦23=d
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | no | yes | yes | | yes | yes | no
|
| skews | single | | double
|
| 4:47936
| a♦1=b | a♦2=d | a♦3=c
| | a♦12=c | a♦13=d
| a♦23=b
|
| b♦1=c | b♦2=d | b♦3=a | b♦12=a | b♦13=d
| b♦23=c
|
| c♦1=a | c♦2=d | c♦3=b | c♦12=b | c♦13=d
| c♦23=a
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | yes | no | yes | | yes | no | yes
|
| skews | single | | double
|
| 4:48569
| a♦1=c | a♦2=b | a♦3=d
| | a♦12=d | a♦13=b
| a♦23=c
|
| b♦1=c | b♦2=d | b♦3=a | b♦12=a | b♦13=d
| b♦23=c
|
| c♦1=d | c♦2=b | c♦3=a | c♦12=a | c♦13=b
| c♦23=d
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:50099
| a♦1=b | a♦2=c | a♦3=d
| | a♦12=d | a♦13=c
| a♦23=b
|
| b♦1=d | b♦2=c | b♦3=a | b♦12=a | b♦13=c
| b♦23=d
|
| c♦1=b | c♦2=d | c♦3=a | c♦12=a | c♦13=d
| c♦23=b
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:50920
| a♦1=d | a♦2=b | a♦3=c
| | a♦12=c | a♦13=b
| a♦23=d
|
| b♦1=a | b♦2=d | b♦3=c | b♦12=c | b♦13=d
| b♦23=a
|
| c♦1=a | c♦2=b | c♦3=d | c♦12=d | c♦13=b
| c♦23=a
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:51769
| a♦1=b | a♦2=d | a♦3=c
| | a♦12=c | a♦13=d
| a♦23=b
|
| b♦1=d | b♦2=a | b♦3=c | b♦12=c | b♦13=a
| b♦23=d
|
| c♦1=b | c♦2=a | c♦3=d | c♦12=d | c♦13=a
| c♦23=b
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | no | no | no | | no | no | no
|
| skews | single | | double
|
| 4:53347
| a♦1=c | a♦2=b | a♦3=d
| | a♦12=d | a♦13=b
| a♦23=c
|
| b♦1=a | b♦2=c | b♦3=d | b♦12=d | b♦13=c
| b♦23=a
|
| c♦1=b | c♦2=a | c♦3=d | c♦12=d | c♦13=a
| c♦23=b
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | yes | yes | no | | no | yes | yes
|
| skews | single | | double
|
| 4:53946
| a♦1=b | a♦2=c | a♦3=d
| | a♦12=d | a♦13=c
| a♦23=b
|
| b♦1=c | b♦2=a | b♦3=d | b♦12=d | b♦13=a
| b♦23=c
|
| c♦1=a | c♦2=b | c♦3=d | c♦12=d | c♦13=b
| c♦23=a
|
| d♦1=d | d♦2=d | d♦3=d | d♦12=d | d♦13=d
| d♦23=d
|
| invertible? | yes | yes | no | | no | yes | yes
|