ref: a2b70e2a6e90819df09812e96b153b1f6a408cde
parent: 97a36f1cd2fd285235afb2e6bcea3b6fa74cef40
	author: Simon Tatham <anakin@pobox.com>
	date: Fri Apr  5 15:41:38 EDT 2019
	
Dominosa: add presets for Hard and Extreme difficulty. I decided not to go all the way up to order-9 Extreme, because that takes a lot of CPU to generate. People can select it by hand if they don't mind that.
--- a/dominosa.c
+++ b/dominosa.c
@@ -142,6 +142,8 @@
     {  7, DIFF_BASIC   },     {  8, DIFF_BASIC   },     {  9, DIFF_BASIC   },+    {  6, DIFF_HARD    },+    {  6, DIFF_EXTREME },};
static bool game_fetch_preset(int i, char **name, game_params **params_out)
--
⑨