As easy as ABC

B. S. T. P. S. ?

What is the next letter?

Got it!
Next three letters are F, K and K

then, I think, K A P?

Originally posted by greenpawn34
[b]B. S. T. P. S. ?

What is the next letter?[/b]

Preceded by S L C A E ?

Before S is tricky... Could be Z?

Yup!

Bovinnik
Smyslov
Tal
Petrosian
Spassky
Fischer

Before B (in reverse order)

A
E
C
L
S

I'd like to add M but it's not official.

After A passed away the ruling body declared E to be the Champion.
The Russians objected the following day and it was over turned.

E would later boast he was WC for a day.

Between A and B you have N for Nobody or V for Vacant.

Originally posted by greenpawn34
[b]B. S. T. P. S. ?

What is the next letter?[/b]

Nice original puzzle.

Congrats to Dejection. I had no idea until all the Ks were mentioned.

I am looking forward to C!

Originally posted by Nordlys
I am looking forward to C!

or Q 😉