From 585c0bfb224b8ed20cb7718972c0443074d5864e Mon Sep 17 00:00:00 2001
From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Sun, 12 Oct 2014 11:04:48 +0200
Subject: [PATCH] Add option do adjust 50-moves draw claim

The number of reversible moves after which a draw claim is emitted
is now adjustable through an engine-defined option.
---
 fairymax.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/fairymax.c b/fairymax.c
index 281ccbf..418c926 100644
--- a/fairymax.c
+++ b/fairymax.c
@@ -102,6 +102,7 @@ int GameNr;
 int Resign;
 char Cambodian[80] = "makruk";
 int Threshold = 800;
+int drawMoves = 50;
 int Score;
 int makruk;
 int prom, pm, gating, succession, hill;
@@ -375,7 +376,7 @@ int PrintResult(int s)
                 }
                 return 3;
         }
-        if(Fifty >=100) {
+        if(Fifty >= 2*drawMoves) {
                 printf("1/2-1/2 {Draw by fifty move rule}\n");
                 return 4;
         }
@@ -459,6 +460,7 @@ void PrintOptions()
 	printf("feature option=\"Multi-PV Margin -spin %d 0 1000\"\n", margin);
 	printf("feature option=\"Variant fairy selects -combo "); PrintVariants(1); printf("\"\n");
 	printf("feature option=\"Makruk rules -combo makruk /// Cambodian /// Ai-wok\"\n");
+	printf("feature option=\"Claim draw after -spin %d 0 200\"\n", drawMoves);
 	printf("feature option=\"Dummy Slider Example -slider 20 0 100\"\n");
 	printf("feature option=\"Dummy String Example -string happy birthday!\"\n");
 	printf("feature option=\"Dummy Path Example -path .\"\n");
@@ -759,6 +761,7 @@ printf("# promo = %d (%c) GT = %d\n", prom, prom + '`', GT);
 			if(sscanf(line+7, "MultiVariation Margin=%d", &margin) == 1) continue;
 			if(sscanf(line+7, "Variant fairy selects=%s", selectedFairy+6) == 1) continue;
 			if(sscanf(line+7, "Makruk rules=%s", Cambodian) == 1) continue;
+			if(sscanf(line+7, "Claim draw after=%d", &drawMoves) == 1) continue;
 			continue;
 		}
 		if (!strcmp(command, "go")) {
-- 
1.7.0.4