FIDELITY CHESS CHALLENGER 10 VERSION B ELECTRONIC CHESS COMPUTER
Version A is the early version of Chess Challenger 10. Later, in the same year Fidelity upgraded the software to Version B. Version A’s seems to have a slightly higher quality workmanship, but it is marginal.
MAIN FIDELITY CHESS CHALLENGER 10 VERSION B GAME CHARACTERISTICS
The Average Response Times per move for each Chess Challenger “10” Level are as follows:
Excerpts taken from Fidelity Chess Challenger 10 user manual.
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FIDELITY CHESS CHALLENGER 10 - Version Comparison
At Schachcomputer.info there is an explanation on how to check which version of Fidelity Chess Challenger 10 you might have.
With Chess Challenger 10 playing White, when opening with the Queen's pawn to d4. You playing as Black, can now force the following responses:
After you have played 2. ... c6 as Black, the two Chess Challenger 10 versions will differ in their next move:
The above picture shows both versions.