Mr. Squares left you his property.

You discover a mysterious chest locked with a seven-letter combination lock.

Looking at the dusty thing, you notice an engraved chess board arranged in the starting position. You remember that he was an avid chess player.

Going over his chess games notebook, something stands out. There is one game that is different from the rest. At first glance, it appears normal. Upon closer inspection, you can tell that something is weird, almost as if both players worked together to hide something...

Find the seven-letter word as the game unfolds, hidden not in pieces, but in their journey.

Game Algebraic notation:

1. e4 e5 2. d3 d5 3. exd5 Qxd5 4. Be3 Nc6 5. Nf3 Bc5 6. Be2 Bg4 7. Bxc5 Qxc5 8. h3 Bxf3 9. Bxf3 Nf6 10. a4 a5 11. g4 g5 12. Bg2 Nd4 13. b3 Rd8 14. Bxb7 Nxc2+ 15. Kd2 Qxf2+ 16. Kc1 Qe2 17. Qxe2 Nxa1 18. Bc6+ Nd7 19. Rf1 f6 20. Bxd7+ Rxd7 21. Qe4 Rf8 22. Qg2 Rxd3 23. Qc6+ Ke7 24. Qg2 Rfd8 25. Rf5 R8d6 26. Qf1 c5 27. Qe2 Ke6 28. Qb2 Rd1#

Game UCI notation:

e2e4, e7e5, d2d3, d7d5, e4d5, d8d5, c1e3, b8c6, g1f3, f8c5, f1e2, c8g4, e3c5, d5c5, h2h3, g4f3, e2f3, g8f6, a2a4, a7a5, g2g4, g7g5, f1g2, c6d4, b2b3, a8d8, g2b7, d4c2, d1d2, c5f2, e1c1, f2e2, d1e2, c2a1, b7c6, b8d7, f1f1, f7f6, c6d7, d8d7, e2e4, f8f8, d1g2, d7d3, g2c6, e8e7, c6g2, f8d8, f1f5, d8d6, g2f1, c7c5, f1e2, e7e6, b2b2, d3d1

Game animated: