---
layout: post
title: "Reed-Solomon code on a chessboard"
date: 2019-04-14 11:24:00 +0000
---
Prisoners smart enough to use Reed-Solomon code with rate 3/7 bits/symbol and erasure probability > 13%, not smart enough to use a subset of inputs to get rate 2 bits/symbol and erasure probability = 0?

![rs1.jpg][img0]  
[(Signature)][sig0]
![rs2.jpg][img1]  
[(Signature)][sig1]

[img0]: /blog/images/2019-04-14-rs-code-chess.0.jpg
[sig0]: /blog/sig/2019-04-14-rs-code-chess.0.jpg.sig
[img1]: /blog/images/2019-04-14-rs-code-chess.1.jpg
[sig1]: /blog/sig/2019-04-14-rs-code-chess.1.jpg.sig