EVENT
BOARDSIZE 19
SETUP W O17 Q18 L17 
SETUP B D16 G17 R17 Q16 Q14 
MARK 3@L17 2@R17 1@Q18
COM
Reference Diagram to Problem 34.

Sliding to 1 and extending two spaces to 3 is joseki. If White
wants to extend three spaces, she should not exchange 1 for Black
2.
<=
ENDCOM