Hello humanracer,
Backbraes was on a minor road in the Teasses area, south of Ceres. As per GR2's post, you'll find it on National Library of Scotland (NLS) website:
http://maps.nls.uk/geo/explore/ Find a place: Either type Teasses, Fife, KY8 in the Gazetteer/NG Ref: box, or County: Fife. Parish: Ceres in the boxes below that.
Map overlay:
1. Select a category: Choose Scotland rather than Great Britain.
2. Select a map/map series: OS 25 Inch, 1892-1905 gives the best view. Zoom in and it looks like a row of 5 cottages and a farm steading.
Use < > at bottom left to change to satellite view. Doesn't appear to be any buildings there now, just a stand of trees.
I love this website & use it often to find farms around the Fife/Kinross area. Interesting to see how areas change using different maps & satellite view. I recently found Four Lairds Land near Cupar after years of searching old maps. Like Backbraes, from the satellite view, there's just a small stand of trees in the corner of a field, no buildings. However, in both cases there's a lot of shadow from trees, so could possibly be ruins there still.
Hope you find Backbraes.
Regards, Dod.