The engine has been modified from factory stock to allow speed 
adjustments. It has five speed settings, labeled in roman numerals. 


+ View Image 


SCP-1875-4 

A suit of 18th-century Samurai armor in the Gusoku style. Arrived in 
storage case with SCP-1875-3, courtesy of Professor M 's 
estate. Historical evidence suggests that SCP-1875-4 would have 
been situated on a chair beside the chess table, serving as a 
performance prop. Staff have not observed any objectively unusual 


activities, however, several visiting researchers have reported 
prolonged feelings of anxiety after making eye contact with armor's 
face plate. 


+ View Image 


Addendum-01: Intake Report 
+ [AUTHORIZED PERSONNEL ONLY] 
SCP involved: 1875 
Personnel involved: , Intake Analyst 
Date: / /199 
Location: Site- 
Description: 


SCP-1875 appears to be a fully mechanical 
chess-playing machine from the mid-19th 
century. Unlike other early "mechanical" chess 
devices (see: Standage, Tom. The Turk: The 
Life and Times of the Famous Eighteenth- 
Century Chess-Playing Machine), SCP-1875 
does not appear to be designed to conceal a 
human operator within its case. 


SCP-1875 was built for the same purpose as 
contemporaneous devices—as a traveling 
curiosity, designed to be played by volunteers 
before a group of spectators, who would be 
charged an admission fee. Identities of several 
of the machine's previous owners are known 
(see: [DATA EXPUNGED)), but reliable 
information regarding its original designer(s) 
and fabricator(s) remains elusive. 


When questioned about the origin of 
SCP-1875, a representative from the estate of 


Professor M directed us to a Russian 
newspaper clipping (see: [DATA EXPUNGED)) 
found among the Professor's belongings. The 
article concerns the disappearance of the twin 
14-year-old daughters of Russian chess 
champion on / /18 . Subsequent 
historical records indicate that the girls were 
never found, and that Russian authorities 
failed to identify the person(s) responsible. 
However, we have yet to establish any 
connection between these events and 
SCP-1875. 


Evidence of the machine's public 
appearances, beginning in 18 under the 
name The Samurai, have been found in 
Russian, British, and American newspaper 
archives (see: [DATA EXPUNGED)). The last 
recorded appearance of The Samurai occurred 
on April , 1906, in San Francisco, California. 
Its owner at the time, sideshow proprietor Mr. 
H H _. , perished in the aftermath of the 
earthquake that struck San Francisco later that 
month. SCP-1875 was presumed to have been 
destroyed as well, until its recent discovery by 
the Foundation. 


After assembling the components of 
SCP-1875 at the Site- intake facility, we have 
begun testing the device for anomalous 
properties. 


Addendum-02: Incident 1875-55A 
+ [AUTHORIZED PERSONNEL ONLY] 
Source: 1875-P Inbox Archive (File 1875-  ) 


From: 1875-P [DepResearchDirector] 
To: DL_1875 
Subject: Re: Test 1875-55 


Date: 11/77/1999 11/07/1999, 16:58 


Upon complete assembly, it was confirmed 
that SCP-1875 chess hardware is fully 
operational. In this test, a modern chess 
computer with variable-strength software was 
used to measure SCP-1875's analytical 
intelligence. 


We positioned one member of Class D 
personnel (1875-D1) in containment with the 
machine, seated behind the chessboard's 
black side and facing 1875-4, which we 
positioned behind the white side. Five chess 
games were played, one on each of the steam 
engine's speed settings. Instructions were 
provided through wireless speakers from 
behind plexiglass shielding to move each 
piece. 


1875-D1 remained unharmed, and returned to 
Site- for next assignment. 


Here's a quick list of the chess strength at 
each setting, as estimated on Elo rating 
system—we're confident about the numbers 
measured on settings | through IV: 


(1) 800-1000 Elo 
(Il) 1000-1200 
(Ill) 1200-2500 
(IV) 2500- 
(V)O-  (?) 


Test on setting V remained the outlier, and so 
we performed additional tests with chess- 
proficient researchers (See: File 1875-V- , 
Games - ): 


Initially, SCP-1875 exceeded Elo,a 
% increase from the maximum rating 
measured in our setting-IV tests. 
¢ After game , SCP-1875 chess play was 
marked by illogical moves. 
¢ During game _, illegal moves were 
observed, forcing us to abandon games- 
in-progress. This activity was seen more 
frequently as testing progressed. 
After game_, erratic piece movement 
was observed. The speed at which 
SCP-1875 moved its pieces increased, 
and it began to violently ram pieces 
together on the board. 


Several chess pieces were chipped, and we 
decided to cease testing until we can 
determine a way to proceed without causing 
more damage. 


Staff currently suspects that setting V may be 
malfunctioning due to excess age and wear. 


5 minutes later, the following was sent to all members of 
the SCP-1875 email distribution list: 


From: 1875-P [ResearchAnalyst] 
To: DL_1875 

Subject: Re: Fwd: Re: Test 1875-55 
Date: 11/77/1999 11/07/1999, 17:03 
Attachment: waxmatbl. [17.2 Mb] 


al b2 c3 d4 e5 f6 h7 g8 
[<1875-IMG-1AB> REDACTED] 


1875-IMG-1AB is an image file that appeared in the body 
of the suspicious email above. It has been removed from 
this report due to unknown memetic properties, which 
caused an adverse reaction in personnel who 
unintentionally viewed it while checking email on 
11/07/1999 before others could be notified. The image 


appears to be a black and white photograph of two 
young girls, though first-hand accounts describe it as 
"distorted" or "stretched" in a visually disturbing manner. 


WwaxmatTbl. is an executable file, written to control subtle 
background movements in 1875-IMG-1AB. It is theorized 
to drive 1875-IMG-1AB's memetic effect, though 
researchers have yet to confirm this. 


The reaction to 1875-IMG-1AB exposure was 
characterized by symptoms: 


¢ T+0 (exposure) — Mild anxiety 

¢ T+15min — Headache, elevated body temperature 

¢ T+2hr — Restlessness, insomnia, auditory 
hallucination reported (often heard as quiet child- 
like laughter) 

¢ T+4hr — Visual hallucination reported, intense 
anxiety 

¢ T+7hr — Subjects remain conscious, though 
increasingly unresponsive to external stimuli 

¢ T+11hr — Brief period of lucidity—subject appears 
to recover & will demand immediate access to 
computer on which 1875-IMG-1AB was viewed 

¢ T+12hr — Self-mutilation observed 

¢ T+14hr — [REDACTED] 


Reminder: The first priority for responding to any 1875- 
IMG-1AB exposure scenario must be removing the 

exposed person(s) from their workstations immediately, 
and isolating them from all networked computers. — O5- 


Addendum-03: Incident 1875-55B 
+ [AUTHORIZED PERSONNEL ONLY] 
DOK O®OKIOIOOOOXH®OkIOLOOOee®OXIOOOUOIBOOXIL 
OOOO KE ©OkIOOOOOkKHe®OkOOUOO® OXIOOOOeE 


OOOO KH © KOO ® OOOO ® ORDO 


OOOO MH © KOO ® OOOO ® OOOO 


OOD hw eh OODOO HH ® OOOO ® ORIOOOOOe 


OOOO bh © KOO ® OOOO ® ORDO 


DOO KHe®OXOOODOHe®OXIOODODORBeOkIOUOOOKH® 


OOOO hE ® ROOD ® OROOODOO ee OOO 


Co 
OOOO ® ROOD ® ORDO ee OOO 
Co 


OOOO MH © ROOD ® ORDO ® OOO 


xX 


xX 


OOOO hE ® ROOD ® OROOOOO ee OOO 
OOOO hE ROOD ® ORDO ee OOO 


xX 


OOOO wH# ® KOO ® OkIOOOOO 


DOO KHeOXOOOUOHe OOOO HeOXIOOODORHeOXIL 


OOOO bh ® KOO ® OOOO ® OeIOOOOOe 


OOOO bh © Ob OODOOkH® OOOO ® OOOO 
OOO) 


- DOKBOOXKOOUDUOKE 

- DOOKHBOOKOUOIUIORHOeOXOOOOOE 

- KHOOROLOLDURHOOUROUUOLORHOOKOOUOUORBOLI 
OOO) 


OOOO BeOROOOOOERHeORXDOOOUEIBeOOoOoOoOke 
Addendum-04: Exercise 1875-November-77 
+ [AUTHORIZED PERSONNEL ONLY] 


waxmatb! [17.2 MB] 
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Footnotes 


1. See:Scientific American Suppl.November 6, 1915. Torres and his 
remarkable automatic devices. Vol. 80, 2079, 296-298. 


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« SCP-1874 | SCP-1875 | SCP-1876 » 


SCP-1876: Selfish Toothbrush 


Item #: SCP-1876 
Object Class: Safe