Stack 004

The same explicit stack machine as Stack 003, with a column-aligned operation log: each line leads with the op index, depth (dNN) and the houses A1…E5 string, then | and the TYPE + frame/message — e.g. 00001 d01 1···· 1···· ····· ····· ·····  |  PUSH ⟨A1=1,B1=1⟩ — candidate for clue 1. See also Stack 001 and Stack 002.

Operation 0 stack size 0
0 / 0

 

The stack — top of LIFO at the top

    Board — the popped frame's arrangement

    A1…E5 string:

    Operation log

    Columns: op# · dNN depth · houses A1…E5 (house digit 1–5 each cell occupies, · if unset) · | · TYPE and frame/message. At depth 14 the houses string equals 34215 35412 52341 31245 43125.