N-queens for Casio fx-3650P, fx-3650PII, fx-50FH

[klesl]

another results
fx-8700G 0:05:09
fx-9700GE 0:01:56
fx-7400GII 0:00:54
fx-9860G Slim 0:00:29
-------------------------
sencor sec-103 0:01:08

the sencor seems to be similar to fx-3650P, at least according to the keybord layout
Som casio calculators have RndFix function together with Rnd function, so terms
10(D-Rnd(D-.5)) [on some calcs this syntax gives syntax error]
or
D-.5
Rnd
10(D-Ans)→B
can be rewritten as 10(D-RndFix(D-.5,0))
RndFix rounds off the value to specified digits (from built-in help, fx-9860G Slim)