i tried it
6b7a8b7a2b2b1d6a9b8a1d1d3d7a1a1d2a3b1a6d5a8a6b1a7d5d5b4a7b2d9b2d8d3b5a3d8b2d6a7 b9a8d7b7b8d4d4d6b3d2b7b2b2b7b2a9b5b4d8d1b4b1b8a2a4b2a1b8b6d3d6b9a4a8b3d7d8a1a9a 4a6d7d1a5a3a6a3b7d4a7d6b3d3b7a4d3d3d9b4b3b4b1b9a5a9a5a3a6a4b7a9b3b1a9b2b8a8d6b8a2a6a8a1b1b8a7a1 a7a3b9a7a6b4d7d9b5b2b6b6d1b1b1b2b3b1b6b3b3a3b7d1b6a3a8b5b9a7a2a8d2d6b1a6d5d5d1a 1b7a5b6d7b5d7b2d3d8d3d9b7d8b6a

tried it with 3b and 2b.. no change..

didnt get through

note what i pasted my have now got carriage return added to get it to fit in the forum post so paste it into notepad and remove any spaces to be a single endless line of text (which is how i entered it)

though i feel we are in the total wrong direction..
the ABD may not even be ABD.. it might be NW.. NE SE  (northwest, northeast, south east.) or something completely different to represent the triangles

seems the guy saying he solved first level is just poking the bear and doesnt have the answer and is just trying to 'bump' the topic