Moin, kleine Anmerkung. Der ct800 kann nicht pondern und das maximale Hashtable ist 117kb.
Ein Auszug aus den Specs:

Hash tables
There are several hash tables implemented, 117 kB in total:

No pondering
Pondering is not implemented, which renders it rather a non-feature. While pondering is not uncommon, it is not used for a variety of reasons:

There is not much to be gained in the first place. 100% ponder hit rate would be equivalent to doubling the speed, which would gain around 60 ELO in strength.
Actually, the hit rate is more like 25%. So the effective speed-up factor would not be 2, but only 1.25 – gaining about 19 ELO, which is not significant at ELO 2100.
The increased energy consumption would halve the battery running time. Currently, the system drastically reduces the clock speed when waiting for user input, which it could not do with pondering.

Dirk