Reactivate Falcon Chess

Now the patent for this has expired, Fairy-Max plays it again.
So the XBoard support for it is now switched on, and an item for it is
added to the XBoard New Variant menu dialog. (WinBoard still had that.)
In the array the Lance was changed for the Falcon as a wild-card piece.

diff --git a/backend.c b/backend.c
index 3a77cf4..db03aad 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -618,10 +618,10 @@ ChessSquare GothicArray[2][BOARD_FILES] = {
 
 #ifdef FALCON
 ChessSquare FalconArray[2][BOARD_FILES] = {
-    { WhiteRook, WhiteKnight, WhiteBishop, WhiteLance, WhiteQueen,
-        WhiteKing, WhiteLance, WhiteBishop, WhiteKnight, WhiteRook },
-    { BlackRook, BlackKnight, BlackBishop, BlackLance, BlackQueen,
-        BlackKing, BlackLance, BlackBishop, BlackKnight, BlackRook }
+    { WhiteRook, WhiteKnight, WhiteBishop, WhiteFalcon, WhiteQueen,
+        WhiteKing, WhiteFalcon, WhiteBishop, WhiteKnight, WhiteRook },
+    { BlackRook, BlackKnight, BlackBishop, BlackFalcon, BlackQueen,
+        BlackKing, BlackFalcon, BlackBishop, BlackKnight, BlackRook }
 };
 #else // !FALCON
 #define FalconArray CapablancaArray

diff --git a/common.h b/common.h
index 98a6149..9d5c0eb 100644 (file)
--- a/common.h
+++ b/common.h
@@ -109,7 +109,7 @@ int pclose(FILE *);
 
 // [HGM] license: Messages that engines must print to satisfy their license requirements for patented variants
 #define GOTHIC "Gothic Chess (see www.GothicChess.com) is licensed under U.S. Patent #6,481,716 by Ed Trice"
-#define NOFALCON "Falcon Chess (see www.chessvariants.com) is licensed under U.S. Patent #5,690,334 by George W. Duke"
+#define FALCON "Falcon Chess (see www.chessvariants.com) is licensed under U.S. Patent #5,690,334 by George W. Duke"
 
 /* [HGM] Some notes about board sizes:
    In games that allow piece drops, the holdings are considered part of the

diff --git a/xoptions.c b/xoptions.c
index 087ee5f..e178bde 100644 (file)
--- a/xoptions.c
+++ b/xoptions.c
@@ -459,17 +459,18 @@ Option variantDescriptors[] = {
 { VariantMakruk, 0, 135, NULL, (void*) &Pick, "#FFFFFF", NULL, Button, N_("makruk")},
 { VariantGreat, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("Great Shatranj (10x8)")},
 { VariantAtomic, 0, 135, NULL, (void*) &Pick, "#FFFFFF", NULL, Button, N_("atomic")},
-{ VariantCapablanca, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("Capablanca (10x8)")},
+{ VariantFalcon, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("falcon (10x8)")},
 { VariantTwoKings, 0, 135, NULL, (void*) &Pick, "#FFFFFF", NULL, Button, N_("two kings")},
-{ VariantGothic, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("Gothic (10x8)")},
+{ VariantCapablanca, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("Capablanca (10x8)")},
 { Variant3Check, 0, 135, NULL, (void*) &Pick, "#FFFFFF", NULL, Button, N_("3-checks")},
-{ VariantJanus, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("janus (10x8)")},
+{ VariantGothic, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("Gothic (10x8)")},
 { VariantSuicide, 0, 135, NULL, (void*) &Pick, "#FFFFBF", NULL, Button, N_("suicide")},
-{ VariantCapaRandom, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("CRC (10x8)")},
+{ VariantJanus, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("janus (10x8)")},
 { VariantGiveaway, 0, 135, NULL, (void*) &Pick, "#FFFFBF", NULL, Button, N_("give-away")},
-{ VariantGrand, 1, 135, NULL, (void*) &Pick, "#5070FF", NULL, Button, N_("grand (10x10)")},
+{ VariantCapaRandom, 1, 135, NULL, (void*) &Pick, "#BFBFFF", NULL, Button, N_("CRC (10x8)")},
 { VariantLosers, 0, 135, NULL, (void*) &Pick, "#FFFFBF", NULL, Button, N_("losers")},
-{ VariantSpartan, 1, 135, NULL, (void*) &Pick, "#FF0000", NULL, Button, N_("Spartan")},
+{ VariantGrand, 1, 135, NULL, (void*) &Pick, "#5070FF", NULL, Button, N_("grand (10x10)")},
+{ VariantSpartan, 0, 135, NULL, (void*) &Pick, "#FF0000", NULL, Button, N_("Spartan")},
 { 0, 0, 0, NULL, NULL, NULL, NULL, Label, N_("Board size ( -1 = default for selected variant):")},
 { 0, -1, BOARD_RANKS-1, NULL, (void*) &appData.NrRanks, "", NULL, Spin, N_("Number of Board Ranks:") },
 { 0, -1, BOARD_FILES, NULL, (void*) &appData.NrFiles, "", NULL, Spin, N_("Number of Board Files:") },