--- a/PROTOCOL.md	Sat Aug 22 16:22:05 2026 +0200
+++ b/PROTOCOL.md	Sun Aug 23 11:38:27 2026 +0200
@@ -29,8 +29,8 @@
 The datatypes used in the message payloads are as follows:
 
 * BYTE — a single byte
-* WORD — two bytes integer (big-endian)
-* DWORD — four bytes integer (big-endian)
+* WORD — two bytes integer (little-endian)
+* DWORD — four bytes integer (little-endian)
 * MOVE — a data structure describing a move, consisting of
   * a DWORD for the elapsed move time in seconds
   * a DWORD for additional elapsed move time in microseconds
@@ -41,6 +41,10 @@
   * a BYTE index for the row the piece was moved to
   * a BYTE describing the selected piece for promotion (otherwise zero)
 
+Note carefully that the byte order used by this protocol is little-endian while
+the standard network byte order would be big-endian. But since the vast majority
+of processors use little-endian nowadays, this protocol uses little-endian, too.
+
 The following table shows the possible values for the BYTEs describing a piece.
 
 | Piece        | Value (Hex) |