From 93984a9fe6c278cf13330e8e3d2fb3b055adfac7 Mon Sep 17 00:00:00 2001
From: GuillaumeSD <gsd.lfny@gmail.com>
Date: Wed, 17 Apr 2024 02:02:22 +0200
Subject: [PATCH] fix : improve brilliant move classification

---
 src/lib/chess.ts                             | 2 +-
 src/lib/engine/helpers/moveClassification.ts | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/lib/chess.ts b/src/lib/chess.ts
index 10835de..50fc3a7 100644
--- a/src/lib/chess.ts
+++ b/src/lib/chess.ts
@@ -216,7 +216,7 @@ export const getIsPieceSacrifice = (
   const materialDiff = endingMaterialDifference - startingMaterialDifference;
   const materialDiffPlayerRelative = whiteToPlay ? materialDiff : -materialDiff;
 
-  return materialDiffPlayerRelative < -1;
+  return materialDiffPlayerRelative < 0;
 };
 
 export const getMaterialDifference = (fen: string): number => {
diff --git a/src/lib/engine/helpers/moveClassification.ts b/src/lib/engine/helpers/moveClassification.ts
index 8bb4697..67720ad 100644
--- a/src/lib/engine/helpers/moveClassification.ts
+++ b/src/lib/engine/helpers/moveClassification.ts
@@ -168,8 +168,8 @@ const isLosingOrAlternateCompletelyWinning = (
     ? positionWinPercentage < 45
     : positionWinPercentage > 55;
   const isAlternateCompletelyWinning = isWhiteMove
-    ? lastPositionAlternativeLineWinPercentage > 70
-    : lastPositionAlternativeLineWinPercentage < 30;
+    ? lastPositionAlternativeLineWinPercentage > 97
+    : lastPositionAlternativeLineWinPercentage < 3;
 
   return isLosing || isAlternateCompletelyWinning;
 };