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cryptography/chess-key/README.md

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+# Chess Key
+
+**Category:** Cryptography
+
+**Points:** 200
+
+## Description
+
+\<iframe src="" style="background-image: url('https://deadface.sfo3.cdn.digitaloceanspaces.com/2026/img/wayfinder/knigh_2_b4_1.png');background-size:cover;background-position:center center;background-origin:content-box;background-repeat:no-repeat;background-color:rgba(40, 40, 40,0);min-height:80px;height:130px;width:100%;padding:10px;border:none" title="Thumbnail">\</iframe>
+\<sup>Created By: \<code>@syyntax\</code>\</sup>
+
+Looks like DEADFACE compromised a machine and left this cryptic calling card:
+
+```
+checkmate. nZ3ipU8_yy3p5_hvyKi0
+```
+
+One of our other analysts also found this image that we believe is tied to this calling card.
+
+[Download PNG](https://deadface.sfo3.cdn.digitaloceanspaces.com/2026/challenges/crypto/crypto05/chesskey.png)(821KB)\<br>
+\<sup>SHA256: `583450106b366b832250ee0dc30d57a055b27772387801d6dc77db9515cd354b`\</sup>
+
+Use this image and any information you can find in GhostTown to reveal the flag.
+
+Submit the flag as `deadface{flag-text}`.
+
+## Services
+
+- [https://deadface.sfo3.cdn.digitaloceanspaces.com](https://deadface.sfo3.cdn.digitaloceanspaces.com)