Left side - actual path of MAS017.
Right side - path of MAS017 according to russian ministry of defence.
Why did they lie about it? As truth could be find out from black boxes and
ukrainian radar recordings.
From the preliminary report (page 11):
According to ATC data, at 13.00 hrs the crew of flight
MH17 requested to divert the track 20 NM to the left, due to weather. This also was agreed by Dnipro Control
It is in accordance with the russian report. While the accompanying picture is... laughable.
You should learn to discern a lie from inaccuracy (e.g. audibly they reported about a soviet-made SU-25 (with the word 'veroyatno' likely, possibly) while in the picture there is an american-made EF-111 :-D )