diff --git a/cryptex/cryptexdb_class.php b/cryptex/cryptexdb_class.php
index 3779a0e..41e9b77 100644
--- a/cryptex/cryptexdb_class.php
+++ b/cryptex/cryptexdb_class.php
@@ -75,9 +75,9 @@ class CryptexDB extends CrossDB {
      */
     public function computeletters( $crossm, $crossd) {
         $letters = '';
-        $cols = $crossm->cols + 1;
-        $letters = str_repeat('.', $crossm->cols).'#';
-        $letters = str_repeat($letters, $crossm->rows);
+        $cols = $crossm->usedcols + 1;
+        $letters = str_repeat('.', $crossm->usedcols).'#';
+        $letters = str_repeat($letters, $crossm->usedrows);
 
         $freqs1 = array();
         $count1 = $count2 = 0;
@@ -115,16 +115,16 @@ class CryptexDB extends CrossDB {
             if ($step == 1) {
                 $step = 2;
                 $i = array_rand( $freqs1);
-                $this->insertchar( $letters, $crossm->cols, $crossm->rows, $freqs1[ $i], $spaces);
+                $this->insertchar( $letters, $crossm->usedcols, $crossm->usedrows, $freqs1[ $i], $spaces);
             } else {
                 $step = 1;
                 $i = array_rand( $freqs2);
-                $this->insertchars( $letters, $crossm->cols, $crossm->rows, $freqs2[ $i], $spaces);
+                $this->insertchars( $letters, $crossm->usedcols, $crossm->usedrows, $freqs2[ $i], $spaces);
             }
         }
 
         $retletters = "";
-        for ($row = 0; $row < $crossm->rows; $row++) {
+        for ($row = 0; $row < $crossm->usedrows; $row++) {
             $retletters .= game_substr( $letters, $cols * $row, ($cols - 1));
         }
 
@@ -246,7 +246,7 @@ class CryptexDB extends CrossDB {
         $questions = array();
         $corrects = array();
 
-        $mask = str_repeat( '0', $crossm->cols * $crossm->rows);
+        $mask = str_repeat( '0', $crossm->usedcols * $crossm->usedrows);
 
         if ($recs = $DB->get_records( 'game_queries', array( 'attemptid' => $crossm->id))) {
             foreach ($recs as $rec) {
@@ -257,7 +257,7 @@ class CryptexDB extends CrossDB {
                 $questions[ $key] = $rec;
 
                 $word = $rec->answertext;
-                $pos = $crossm->cols * ($rec->row - 1) + ($rec->col - 1);
+                $pos = $crossm->usedcols * ($rec->row - 1) + ($rec->col - 1);
                 $len = game_strlen( $word);
                 $found = ($rec->answertext == $rec->studentanswer);
 
@@ -268,7 +268,7 @@ class CryptexDB extends CrossDB {
                         game_setchar( $mask, $pos, $c);
                     }
 
-                    $pos += ($rec->horizontal ? 1 : $crossm->cols);
+                    $pos += ($rec->horizontal ? 1 : $crossm->usedcols);
                 }
 
                 if ($found) {
diff --git a/cryptex/play.php b/cryptex/play.php
index 789c95c..87c2152 100644
--- a/cryptex/play.php
+++ b/cryptex/play.php
@@ -277,7 +277,7 @@ width:	240pt;
 
     echo '<table border=0>';
     echo '<tr><td>';
-    $cryptex->displaycryptex( $crossm->cols, $crossm->rows, $cryptexrec->letters, $mask, $showsolution, $textdir);
+    $cryptex->displaycryptex( $crossm->usedcols, $crossm->usedrows, $cryptexrec->letters, $mask, $showsolution, $textdir);
 ?>
 </td>
 
diff --git a/db/importsnakes.php b/db/importsnakes.php
index e64e827..2b10878 100644
--- a/db/importsnakes.php
+++ b/db/importsnakes.php
@@ -39,8 +39,8 @@ function game_importsnakes() {
 
     $newrec = new stdClass();
     $newrec->name = '8x8 - 4 Snakes - 4 Ladders';
-    $newrec->cols = 8;
-    $newrec->rows = 8;
+    $newrec->usedcols = 8;
+    $newrec->usedrows = 8;
     $newrec->fileboard = 'fidaki.jpg';
     $newrec->direction = 1;
     $newrec->headerx = 4;
@@ -54,8 +54,8 @@ function game_importsnakes() {
 
     $newrec = new stdClass();
     $newrec->name = '6x6 - 3 Snakes - 3 Ladders';
-    $newrec->cols = 6;
-    $newrec->rows = 6;
+    $newrec->usedcols = 6;
+    $newrec->usedrows = 6;
     $newrec->fileboard = 'fidaki2.jpg';
     $newrec->direction = 1;
     $newrec->headerx = 8;
diff --git a/export/exporthtml_snakes.php b/export/exporthtml_snakes.php
index f911351..a14be66 100644
--- a/export/exporthtml_snakes.php
+++ b/export/exporthtml_snakes.php
@@ -100,8 +100,8 @@ var quest_total = 25; // Count of questions
 
 board_images[ 0] = '<?php echo $board->fileboard; ?>';
 board_names[ 0] = "<?php echo $game->name; ?>";
-board_cols [0] = <?php echo $board->cols; ?>;
-board_rows [0] = <?php echo $board->rows; ?>;
+board_cols [0] = <?php echo $board->usedcols; ?>;
+board_rows [0] = <?php echo $board->usedrows; ?>;
 board_contents [0] = '<?php echo $board->data; ?>';
 board_headerx [0] = <?php echo $board->headerx; ?>;
 board_headery [0] = <?php echo $board->headery; ?>;
diff --git a/locallib.php b/locallib.php
index 0c0ca52..9581374 100644
--- a/locallib.php
+++ b/locallib.php
@@ -2078,7 +2078,7 @@ function game_snakes_create_user_defined_board( &$game) {
         if ($f === false) {
             print_error( 'No image specified');
         }
-        $im = game_createsnakesboard($f->get_content(), $board->cols, $board->rows, $board->headery, $board->headery,
+        $im = game_createsnakesboard($f->get_content(), $board->usedcols, $board->usedrows, $board->headery, $board->headery,
             $board->footerx, $board->headerx, $board->data, $board->width, $board->height);
         ob_start();
         imagepng($im);
diff --git a/version.php b/version.php
index 409aea6..b882031 100644
--- a/version.php
+++ b/version.php
@@ -35,7 +35,7 @@ if (!isset( $plugin)) {
 }
 
 $plugin->component = 'mod_game';  // Full name of the plugin (used for diagnostics).
-$plugin->version   = 2017062701;  // The current module version (Date: YYYYMMDDXX).
+$plugin->version   = 2017062702;  // The current module version (Date: YYYYMMDDXX).
 $plugin->requires  = 2010112400;  // Requires Moodle 2.0.
 $plugin->cron      = 0;           // Period for cron to check this module (secs).
 $plugin->release   = '2017-06-20';