Most importantly, what I probably forgot to mention at the beginning.
Main reason for lack of success, as I watch engine games, is that, even if engines have the necessary position with pointed chain, they simply do not make use of it, primarily because they are reluctant to quickly push the storming pawn on the file next to the file the most advanced pawn of the triade is.
For example, if you have a triade c3-d4-e5, you would like to quickly push the f pawn, from f2 to f4 and f5.
If you have a triade d3-e4-f5, you would like to quickly push the g pawn, from g2 to g4 and g5.
That will surely immensely strengthen the attack.
That is the main problem of engines: they have a triade, and they do not push those pawns.
The trick is however to give additional bonus only to the storming pawn on the file next to the file where the most advanced pawn of the triades is, otherwise, if you bonus all stroming pawns with triades or closed positions, you simply skew things too much.
With a c3-d4-e5 triade, f pawn is the only important storming pawn to bonus, and with d3-e4-f5 triade, g pawn is the only important storming pawn to bonus.
pointy chains redux (part 1)
Moderator: Ras