diff --git a/app/models/challenge.rb b/app/models/challenge.rb
index ca88efbb3..68d55a582 100644
--- a/app/models/challenge.rb
+++ b/app/models/challenge.rb
@@ -79,19 +79,14 @@ class Challenge < ApplicationRecord
   #   end
   # end
 
-
-  # # 开启挑战
-  # def open_game(user_id, shixun)
-  #
-  #
-  #   game = self.games.select([:status, :identifier]).where(user_id: user_id).first
-  #   game = self.games.select{|game| game.user_id == user_id}
-  #   if game.present?
-  #     shixun.task_pass || game.status != 3 ? "/tasks/#{game.identifier}" : ""
-  #   else
-  #     "/api/shixuns/#{shixun.identifier}/shixun_exec"
-  #   end
-  # end
+  def open_game user_id, shixun
+    game = self.games.where(user_id: user_id).first
+    if game.present?
+      shixun.task_pass || game.status != 3 ? "/tasks/#{game.identifier}" : ""
+    else
+      self.position == 1 ? "/api/shixuns/#{shixun.identifier}/shixun_exec" : ""
+    end
+  end
 
   ## 用户关卡状态 0: 不能开启实训; 1:直接开启; 2表示已完成
   def user_tpi_status shixun, user_id
diff --git a/app/views/challenges/index.json.jbuilder b/app/views/challenges/index.json.jbuilder
index 409514643..2eb8093a4 100644
--- a/app/views/challenges/index.json.jbuilder
+++ b/app/views/challenges/index.json.jbuilder
@@ -22,6 +22,7 @@ if @challenges.present?
     json.playing_count challenge.playing_count
     json.name_url shixun_challenge_path(challenge, shixun_identifier: @shixun.identifier)
     #json.open_game challenge.open_game(@shixun)
+    json.open_game challenge.open_game(@shixun, @user.id)
     if @editable
       json.edit_url edit_shixun_challenge_path(challenge, shixun_identifier: @shixun.identifier)
       json.delete_url shixun_challenge_path(challenge, shixun_identifier: @shixun.identifier)