No it doesn't. Look at the board. The only piece behind enemy lines would be the white bishop at G5. The piece at D5 is black's, and is on its half of the board.

D5 is listed on a lot of Q posts, though. 4229, 2549, 2537, 2498 2494 2333 2332 and 3361 and many more. It's hard to search because many posts have random d5s in the codes. One of the d5s is in a killbox. It appears so often I think it must be shorthand for something, probably Declass, or a specific type of declass.

Did anybody try to read the writing on the top right portion of his "room?" I couldn't make it out.

No it doesn't. Look at the board. The only piece behind enemy lines would be the white bishop at B4. The piece at D5 is black's, and is on its half of the board.

D5 is listed on a lot of Q posts, though. 4229, 2549, 2537, 2498 2494 2333 2332 and 3361 and many more. It's hard to search because many posts have random d5s in the codes. One of the d5s is in a killbox. It appears so often I think it must be shorthand for something, probably Declass, or a specific type of declass.

Did anybody try to read the writing on the top right portion of his "room?" I couldn't make it out.