From 61a6c5ed9edcb671bcf47796366af3f8d8ad2bca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?M=C3=A1rcio=20Pais?= <MarcioPais@users.noreply.github.com>
Date: Sun, 5 Nov 2017 20:28:15 +0100
Subject: [PATCH] Tweaked brute mode heuristic

---
 precomp.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/precomp.cpp b/precomp.cpp
index fb22b68..b5755b6 100644
--- a/precomp.cpp
+++ b/precomp.cpp
@@ -2786,7 +2786,7 @@ bool check_inf_result(int cb_pos, int windowbits, bool use_brute_parameters = fa
         used+=((*freq)==0);
         maximum+=(++(*freq))>maximum;
       }
-      if (maximum>=8+i || used*4<(i+1)*64)
+      if (maximum>=((12+i)<<i) || used*(7-(i+(i/2)))<(i+1)*64)
         return false;
     }
   }