Category: stego
Author: s1kk1s
You are invited to the Queen's Royal invitational, one of the most prestige chess tournaments in the world. To once again prove your worth, you must solve the riddle the organizers created with this 7x7 chessboards.
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Reveal Spoiler
The 9 images represent a 21x21 QR code which holds the flag. Each chess piece represents a black 1x1 square on the QR code. The correct concatenation of the pictures are:
| 1 | 2 | 3 |
| 4 | 5 | 6 |
| 7 | 8 | 9 |