BBC News
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image captionWillie Rennie had a karate lesson on The Meadows, Edinburgh while activists went door-to-door to point out SNP failures.
Claims of "broken promises" by the SNP have become a key campaign tool for the Scottish Liberal Democrats.
Activists in Edinburgh launched the party's "doorstep dossier" in a bid to win over disenchanted SNP voters.
Party leader Willie Rennie said they were highlighting the SNP's "negative track-record" after 14 years in power.
The SNP accused the Lib Dems of hypocrisy, having previously joined a coalition with the Conservatives at Westminster.
The Scottish Liberal Democrats are hoping to stop the SNP gaining an overall majority in the Holyrood election on 6 May and want the parliament to put economic recovery first.