Chess is a game about power and intelligence. Knowledge is power, efficient and effective use of knowledge is your intelligence.
I think of two ways, the second would suffice to memorize entire games:
- Good and maybe enough for even going professional.
Pure imagery plus memory palaces for the long term: simply look as the notations and take as much movements as you see fit, convert the moves into images and place them in a mental place. For instance: First move could be an image created for whatever inspire you, arbitrary or creative impulse to visualize from e4 e5 and place that image in a spot, then the same for the next Nf3 Nc6 and the rest…
This first method could even be better than the second, however the second could give you more oportunities for either other games or activities in which the memorization of letters a-h, digits 1-8 could come in handy.
- I don’t recommend this, if you don’t plan in memorize plenty in short time and for serious activity.
In this method you would make pegs for coordinates letter-digit (a-1/h-8), images for the pieces and for the actions: capture, check, checkmate, King’s and Queen’s castle, stalmate and even draw. Although the pegs can be as complex as you want, you could aid yourself from memorized number list like 0-9 or 00-99, ignoring zeroes and nines (obviously :)).
The process of memorization would then be, visualizing pegs + actions and place them in mental places. (Method of loci is the best technique for absolute long term and more if you ever hope to teach others)
Involving taken the letters as digits from a-h = 1-8, then “e4 e5” becomes “54 55”. Pegs organizations:
64 pegs for 11-88 coordinates.(Objects, good option)
5 pegs for the pieces. (Entities, good option)
8 pegs for the letters a-8 for when pawns capture (Animals, good option)
2 pegs for the castles (Entities, good option)
3 pegs for actions: capture, check and checkmate (sword kill, arrow shoot, explosion)