Can you identify these 1x2 and 2x2 bricks with grooves? As far as I understand, these are modified with groove bricks. However, search for 'groove' on BrickLink gives only left one. Which are the other two? Which other parts have similar vertical groove and do not have 'groove' word in the name?
Actually found via Google pictures. On bricklink need to use 'grooves' in search, partial matches do not work there.