Yes.
Say there are three candidates: Right, Centre-Right and Left, and the approval
votes cast are
49: Right
21: Centre-Right (all prefer Right to Left)
23: Left
07: Left, Centre-Right (sincere favourite is Left)
Approval votes: Right 49, Left 30, Centre-Right 28.
The top-2 runoff is between Right and Left and Right wins
70-30.
All the voters who approved Left prefer Centre-Right to Right. The 7 voters who
approved both Left and Centre-Right can change the winner to Centre-Right by
dumping Left (their sincere favourite) in the first round.
49: Right
28: Centre-Right
23: Left
Now the top-2 runoff is between Right and Centre-Right and Centre-Right wins
51-49.
Seven voters have succeeded with a Compromise strategy.
Chris Benham
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