If your game somehow crash from playing this spicy chicken game and too lazy to wait 5or10minute of validating try this
1.open task manager(ctrl+alt+delete)
2.right click dota2.exe
3.open file location it will lead you to your dota2.exe
4.right click dota2.exe create short cut

it should be something like this or simillar
mine is "E:\Steam\SteamApps\common\dota 2 beta\game\bin\win64\dota2.exe"

when my game crash or something I always use this shortcut to skip dota 2 validating and reconnect to the game.