From b0056e89166a3ba13b622d8ea44f2f0183321e1f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eduardo=20C=C3=A1ceres?=
 <eduardo.caceresdelacalle@gmail.com>
Date: Mon, 8 Jan 2024 23:34:42 +0100
Subject: [PATCH] Fix assertion

---
 src/Lynx/Model/Move.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Lynx/Model/Move.cs b/src/Lynx/Model/Move.cs
index 03ec9c2ad..3cb6526b9 100644
--- a/src/Lynx/Model/Move.cs
+++ b/src/Lynx/Model/Move.cs
@@ -153,7 +153,9 @@ public static bool TryParseFromUCIString(ReadOnlySpan<char> UCIString, Span<Move
                         return true;
                     }
 
-                    Debug.Assert(moveList.Length == 4, "There will be 4 and always 4 moves that match sourceSquare and targetSquare when there is a promotion");
+                    Debug.Assert(moveList.Length >= 4, "There will be at least 4 moves that match sourceSquare and targetSquare when there is a promotion");
+                    Debug.Assert(moveList.ToArray().Count(m => m.PromotedPiece() != default) == 4 || moveList.ToArray().Count(m => m.PromotedPiece() != default) == 8, "There will be either 4 or 8 moves that are a promotion");
+                    Debug.Assert(moveList.ToArray().Count(m => m.SourceSquare() == sourceSquare && m.TargetSquare() == targetSquare && m.PromotedPiece() != default) == 4, "There will be 4 (and always 4) moves that match sourceSquare and targetSquare when there is a promotion");
                 }
             }
         }