diff --git a/src/server/game/PlayerChessMod.go b/src/server/game/PlayerChessMod.go
index 7065073c..d08ce6ee 100644
--- a/src/server/game/PlayerChessMod.go
+++ b/src/server/game/PlayerChessMod.go
@@ -242,7 +242,14 @@ func (p *PlayerChessData) ClearData() bool {
 }
 
 func checkChess(ChessId, EnergyMul int, Emit []int) bool {
+	if len(Emit) == 0 {
+		return false
+	}
 	ChessIdLv := mergeDataCfg.GetLvById(ChessId)
+	ChessIdType := mergeDataCfg.GetTypeById(ChessId)
+	if ChessIdType != "Product" {
+		return false
+	}
 	ChessIdColor := mergeDataCfg.GetColorById(ChessId)
 	if ChessIdColor == "Star" || ChessIdColor == "Energy" || ChessIdColor == "Diamond" {
 		return false