Sangokushi II

A turn-based strategy game played from three floppy images. Everything below
is an observation from a real campaign state, not a rule of the game: apply it
only when the visible prompt matches, and re-verify from the actual screen.

Media

A = sangokushi-2.dsk, B = sangokushi-2-b.dsk, user data disk =
sangokushi-2-data.dsk. Catalog names only; no host paths. Verified origin
slot sangokushi2-cao-pi-ready: scenario 6, beginner, historical, 1 human
player as Cao Pi, province 10 awaiting its first command, frame 26865. It is a
test origin — after restoring it, save under your own slot prefix instead of
keeping the original.

Province command prompt (0-19)?

Return with an empty entry reveals the command list; Space and F1 did not. A
numeric entry followed by Return selects that command instead.

Number	Visible command	Meaning
0	待機	Wait / finish province commands
1	移動	Move
2	輸送	Transport
3	戦争	War
4	軍事	Military
5	人事	Personnel
6	外交	Diplomacy
7	計略	Plots
8	情報	Information
9	開発	Development
10	治水	Flood control
11	褒美	Rewards
12	施し	Relief
13	商人	Merchant
14	徴収	Levy
15	地図	Map
16	委任	Delegate
17	放浪	Wander
18	特別	Special
19	機能	Functions

Observed transitions: 1, Return asks for a destination numbered 1-41; 9,
Return asks which officer should develop the province. Neither alone proves
movement or improved land. 0, Return, y, Return advanced the observed
campaign from province 10 to 18.

Development is a sequence of decisions: 9, Return; read the officer list
and select an officer; capture the resulting amount prompt before entering a
cost. One observed province 13 action (officer 5, cost 50) changed gold from
500 to 450 and a displayed province statistic from 20 to 27, returning to the
command prompt with the month unchanged. That demonstrates a completed action
in that state, not a fixed exchange rate or a universally best officer.
Compare the actual before/after resources, then preserve the result before
planning another action.

Functions submenu cancellation: in one observed province 11 state, the
functions submenu (1-6)? remained visible after 0, Return and after Esc.
A subsequent Return by itself returned to the same province's main (0-19)?
prompt with resources and month unchanged. Verify that prompt before sending
province commands; do not assume Esc universally cancels.

In-game save

1, 9, Return, then 5, Return (command 19 機能, option 5) opens the save
flow. Swap to the data disk only when the game requests D; follow the slot
and name prompts; swap back to B when requested. Emulator checkpoints and the
game's own save/load are distinct behaviors to verify separately.

Media-change pitfall

A controlled replay found that switching from B to A during an active
campaign cleared the open file state while the game still needed
PACKDATA.DAT, which was present on B. Replaying the same accepted inputs
from the same earlier checkpoint while retaining B reached a readable
diplomacy prompt. That is a failure of one media-change sequence, not a rule
to keep B inserted at all times: follow the currently visible D or B request
when the game asks.

Reading the screen

Bitmap modes (GRAPHIC6 openings and scenes) leave name-table residue:
screen_text there is not OCR of the visible scene. Read the actual image
artifact with keeper_analyze_image — the msx-observe Skill does the
capture and read in one call. A long unattended observer run ending in year
293 is not proof of a victory; no full winning campaign is established.

Repeated sequences

• Ending the current province's commands (0, Return, y at the province
  (0-19)? prompt) is one call: the sangokushi-2-end-command composition
  Skill presses the verified sequence, waits for the settled screen and
  returns the observation. This is the verified province 10 to 18 transition.
• The save-flow entry is 1, 9, Return, 5, Return at the province
  prompt: one masc_msx_press call with sequence=true. The disk prompts
  that follow are interactive: read the screen and swap media per the visible
  request; nothing pre-swaps disks.