X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=35683608f55fb33aac14a0e5d7b5fd16f39497c6;hp=0748dcecef86a71cf14db1b15996a57eea853870;hb=d74a69f327e46402ee647e2b0eba4c24e6914d27;hpb=f72838ebf2ced1db4d3b3c1b06787180df6ae10f

diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js
index 0748dce..3568360 100644
--- a/www/js/remoteglot.js
+++ b/www/js/remoteglot.js
@@ -1060,10 +1060,20 @@ var update_board = function() {
 			headline += ' after ' + last_move;
 		}
 	} else if (data['position']['last_move'] !== 'none') {
+		// Find the previous move.
+		var previous_move_num, previous_toplay;
+		if (data['position']['toplay'] == 'B') {
+			previous_move_num = data['position']['move_num'];
+			previous_toplay = 'W';
+		} else {
+			previous_move_num = data['position']['move_num'] - 1;
+			previous_toplay = 'B';
+		}
+
 		last_move = format_move_with_number(
 			data['position']['last_move'],
-			data['position']['move_num'],
-			data['position']['toplay'] == 'B');
+			previous_move_num,
+			previous_toplay == 'W');
 		headline += ' after ' + last_move;
 	} else {
 		last_move = null;
@@ -1198,7 +1208,9 @@ var update_board = function() {
 		for (var i = 1; i < alt_moves.length && i < 3; ++i) {
 			hiddenboard = new Chess(base_fen);
 			var move = hiddenboard.move(alt_moves[i]);
-			create_arrow(move.from, move.to, '#f66', 1, 10);
+			if (move !== null) {
+				create_arrow(move.from, move.to, '#f66', 1, 10);
+			}
 		}
 	}