SOLUTION PAR Zenobifan2. Testé par Kukulcan le 26/03/2023.

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* PART 1 *
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001 - GET MONEY
002 - X CLOSET
003 - OPEN CLOSET
004 - X CLOSET
005 - X BOX
006 - GET GOGGLES
007 - S
008 - W
009 - X DESK
010 - X ENVELOPE
011 - GET ENVELOPE
012 - X BED (nothing)
013 - E
014 - D
015 - X CAT
016 - GET CAT
017 - X BOWLS (two bowls, one with water, the other empty)
018 - X PORTRAITS
019 - W
020 - X BLUEPRINTS
021 - X PICTURES
022 - E
023 - E
024 - X PANTRY
025 - GET ANCHOVY
026 - W
027 - PUT ANCHOVY (into empty bowl, cat eats it and will now follow you)
028 - U
029 - W
030 - X DESK (cat finds something under bed)
031 - X BED (now find crumpled letter)
032 - GET LETTER
033 - READ LETTER
034 - E
035 - D
036 - S
037 - E
038 - TALK TULLIO
039 - W
040 - S
041 - X CABINET
042 - GET KEY (for ITA51)
043 - E
044 - E
045 - X 101
046 - X 51
047 - WEAR GOGGLES
048 - DRIVE 51 ( you now drive to Piazzo Carignan, you get password SHIBBOLETH RAMASSIN)

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* PART 2 *
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049 - X KIOSK
050 - BUY NEWSPAPER
051 - READ NEWSPAPER (new opera Madama Butterfly by Puccini)
052 - S
053 - W
054 - N (museum keeper throws you out saying Museum is closed)
055 - W
056 - X KEEPER (whistling an operatic aria)
057 - TALK KEEPER
058 - GIVE NEWSPAPER TO KEEPER (he leaves to read newspaper)
059 - X PANEL
060 - S
061 - S
062 - X PAPYRI
063 - N
064 - X PLAQUE
065 - W
066 - X SARCOPHAGI
067 - W
068 - X SPHINX
069 - N
070 - X STATUES
071 - N
072 - X DESK
073 - GET PAPER
074 - E
075 - GET PENCIL
076 - X PENCIL
077 - W
078 - W
079 - S
080 - S
081 - E
082 - E
083 - N
084 - N
085 - U
086 - X ENGRAVINGS
087 - S
088 - X STATUES
089 - S
090 - X PAPYRI
091 - X STRIKE PAPYRUS
092 - X EROTIC PAPYRUS
093 - X JUDICIAL PAPYRUS
094 - X KING LIST
095 - OPEN DOOR
096 - X MECHANISM (combination lock with 7 hieroglyph symbols)
097 - N
098 - N
099 - D
100 - S
101 - X PANEL (note hieroglyphs are like lock symbols)
102 - COPY HIEROGLYPHS (need the pencil and paper collected earlier)
103 - N
104 - U
105 - S
106 - S
107 - OPEN LOCK (using copied combination)
108 - W
109 - W (Schiaparelli tells of Belisario and Riccobene talking about a prototype, he says to go to the university to talk to Riccobene) (you travel to Via Pietro Giuria, you get a new password SHIBBOLETH BOGIANEN)

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* PART 3 *
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110 - E
111 - E
112 - X BLACKBOARD (chemical formulas, reactions of Ferric Chloride etching copper and other metals)
113 - S
114 - E
115 - X BENCH
116 - GET MATCHES
117 - X GLASSWARE (reagents, one is labelled Ferric Chloride)
118 - W
119 - N
120 - N
121 - E
122 - X BLACKBOARD
123 - X CHALK
124 - X BENCH
125 - X CABINET (robust brass lock)
126 - POUR FERRIC ON LOCK
127 - GET COAT
128 - X COAT
129 - GET KEY (small key)
130 - W
131 - S
132 - S
133 - W
134 - D
135 - S
136 - GET LAMP
137 - X LAMP (it is off)
138 - GET SHOVEL
139 - N
140 - E
141 - X COAL
142 - X COVER
143 - OPEN COVER (with shovel)
144 - TURN ON LAMP (with matches)
145 - D
146 - E
147 - E
148 - S
149 - W
150 - OPEN DOOR (with small key)
151 - S
152 - W
153 - W
154 - X SHELVES
155 - W
156 - X EXTRACTOR
157 - E
158 - E (you feel someone grab you from behind cover your nose and mouth, you smell ether and pass out, you get new password SHIBBOLETH BOJAFAUS, and you wake up in a wagon in the dark)

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* PART 4 *
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159 - OPEN WAGON
160 - D
161 - S (cannot get inside yet but hear Riccobene and Professor Luzzi's assistant Belisario a former ITA employee talking)
162 - E
163 - X BENCH
164 - GET LIGHTER
165 - E
166 - S
167 - X WAGON
168 - X LOCK (needs right key)
169 - N
170 - N
171 - X SAWDUST
172 - LIGHT SAWDUST (with lighter, you hide and Riccobene and Belisario arrive to put out the fire, can now go to the office where you heard them talking)
173 - W
174 - W
175 - S
176 - X DESK
177 - X NOTEPAD
178 - GET LARGE KEY
179 - N
180 - E
181 - E
182 - S
183 - OPEN LOCK (with large key)
184 - E
185 - MOVE TARPAULIN (under is the prototype Autosigma car, you call the police and both Riccobene and Belisario are arrested, final code password is COUNTACH)