WHITE
White to play and draw.
COMIC ARITHMETIC
“Now, boys,” said Dr Bulbous Roots to class, “you shall have a half-holiday if you prove in a novel way that 10 is an even number.”
Next morning, when the doctor came into school, he found this on the blackboard:—
| SIX | = | 6 | |
| SIX | = | 9 | |
| By subtraction | S | = | -3 |
| SEVEN | = | 7 | |
| S | = | -3 | |
| Therefore | SEVEN | = | 10 |
Q. E. D.
(Quite easily done!)
The half-holiday was won.