Merge branch 'fairy-stockfish:master' into master

src/variants.ini

@@ -575,6 +575,9 @@ promotionPawnTypes = -
 maxRank = 6
 maxFile = 6
 startFen = 2bnrk/5p/6/6/P5/KRNB2
+promotionPieceTypes = nbr
+promotionRegionWhite = *6
+doubleStep = false
 
 #https://www.chess.com/variants/rookmate
 [rookmate:chess]
@@ -1970,3 +1973,13 @@ flagPiece = k
 flagRegionWhite = *8
 flagRegionBlack = *1
 startFen = lhatkahl/ssssssss/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1
+
+#https://www.chessvariants.com/diffobjective.dir/giveaway.html
+#When stalemate, the stalemated player does not move but the opponent can if he wish to play for win go on moving and do as many moves he wants to do. 
+#If the stalemate then disappear, both players move again as usual. So, if white for example has a pawn on h2 and nothing more and black a pawn on h3, pawn on a7 and rooks on a8 and h8 
+# black can win by moving : 1.-,Rh4 2.-, a5. 3.-, a4 4.- Ra5 5.-,a3 6.-,a2 7.-,a1=R 8.-,Rg1 9.-,Rg3 10.hxg3,h2 11.gxh4,Rg5 12.hxg5,h1=Q 13.g6,Qh7 14.gxh7 and black has won.
+[andersgiveaway:giveaway]
+passOnStalemate = true
+
+[andersanti:antichess]
+passOnStalemate = true