of twenty-four letters and assuming a rectangle of six letters horizontally, and four letters vertically, we may have:
(a) Simple Horizontal:
| A B C D E F | F E D C B A | S T U V W X | X W V U T S |
| G H I J K L | L K J I H G | M N O P Q R | R Q P O N M |
| M N O P Q R | R Q P O N M | G H I J K L | L K J I H G |
| S T U V W X | X W V U T S | A B C D E F | F E D C B A |
(b) Simple Vertical:
| A E I M Q U | D H L P T X | U Q M I E A | X T P L H D |
| B F J N R V | C G K O S W | V R N J F B | W S O K G C |
| C G K O S W | B F J N R V | W S O K G C | V R N J F B |
| D H L P T X | A E I M Q U | X T P L H D | U Q M I E A |
(c) Alternate Horizontal:
| A B C D E F | F E D C B A | X W V U T S | S T U V W X |
| L K J I H G | G H I J K L | M N O P Q R | R Q P O N M |
| M N O P Q R | R Q P O N M | L K J I H G | G H I J K L |
| X W V U T S | S T U V W X | A B C D E F | F E D C B A |
(d) Alternate Vertical:
| A H I P Q X | D E L M T U | X Q P I H A | U T M L E D |
| B G J O R W | C F K N S V | W R O J G B | V S N K F C |
| C F K N S V | B G J O R W | V S N K F C | W R O J G B |
| D E L M T U | A H I P Q X | U T M L E D | X Q P I H A |