$ clisp

<...snip...>

[1]> (load "quarto.l")
;; Loading file quarto.l ...
;;  Loading file lp.l ...
;;  Loaded file lp.l
;; Loaded file quarto.l
T
[2]> (task39--same-size-p-demo)
For [B-] and [R-] the same size result = T
For [b-] and [r-] the same size result = T
For [B-] and [r-] the same size result = NIL
For [b-] and [R-] the same size result = NIL
NIL
[3]> (bye)
Bye.