diff --git a/notebooks/RPSS_verification.ipynb b/notebooks/RPSS_verification.ipynb
index d6c86d339a043575d4941d41ff46539ae17587ca..58e038c1412685d3f8528253d856b18bf363af09 100644
--- a/notebooks/RPSS_verification.ipynb
+++ b/notebooks/RPSS_verification.ipynb
@@ -37,9 +37,18 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 25,
+   "execution_count": 1,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "/opt/conda/lib/python3.8/site-packages/xarray/backends/cfgrib_.py:27: UserWarning: Failed to load cfgrib - most likely there is a problem accessing the ecCodes library. Try `import cfgrib` to get the full error message\n",
+      "  warnings.warn(\n"
+     ]
+    }
+   ],
    "source": [
     "import xarray as xr\n",
     "import xskillscore as xs\n",
@@ -88,16 +97,25 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 26,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "/opt/conda/lib/python3.8/site-packages/xarray/backends/plugins.py:61: RuntimeWarning: Engine 'cfgrib' loading failed:\n",
+      "/opt/conda/lib/python3.8/site-packages/gribapi/_bindings.cpython-38-x86_64-linux-gnu.so: undefined symbol: codes_bufr_key_is_header\n",
+      "  warnings.warn(f\"Engine {name!r} loading failed:\\n{ex}\", RuntimeWarning)\n"
+     ]
+    },
     {
      "data": {
       "text/plain": [
        "Frozen(SortedKeysDict({'category': 3, 'lead_time': 2, 'forecast_time': 53, 'latitude': 121, 'longitude': 240}))"
       ]
      },
-     "execution_count": 26,
+     "execution_count": 3,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -135,7 +153,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 27,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -144,7 +162,7 @@
        "Frozen(SortedKeysDict({'forecast_time': 53, 'latitude': 121, 'lead_time': 2, 'longitude': 240, 'category': 3}))"
       ]
      },
-     "execution_count": 27,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -164,7 +182,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 28,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -181,7 +199,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 29,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -190,7 +208,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 30,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -214,7 +232,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 31,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -223,7 +241,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 32,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -241,7 +259,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 33,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -250,7 +268,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 34,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -268,7 +286,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 35,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -277,7 +295,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 36,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -302,7 +320,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 37,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -316,7 +334,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -325,7 +343,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 40,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -343,7 +361,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 41,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -426,7 +444,7 @@
        "    southern_extratropics    -0.04    -0.06"
       ]
      },
-     "execution_count": 41,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -443,7 +461,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -490,7 +508,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [
     {
@@ -508,7 +526,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 23,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [
     {
@@ -517,7 +535,7 @@
        "Frozen(SortedKeysDict({'forecast_time': 53, 'category': 3, 'lead_time': 2, 'latitude': 121, 'longitude': 240}))"
       ]
      },
-     "execution_count": 23,
+     "execution_count": 21,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -529,7 +547,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": 22,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -538,7 +556,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 25,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -583,7 +601,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 27,
+   "execution_count": 24,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -628,7 +646,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 29,
+   "execution_count": 25,
    "metadata": {},
    "outputs": [
     {
@@ -711,7 +729,7 @@
        "    southern_extratropics    -0.01    -0.01"
       ]
      },
-     "execution_count": 29,
+     "execution_count": 25,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -725,7 +743,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 30,
+   "execution_count": 26,
    "metadata": {},
    "outputs": [
     {
@@ -733,15 +751,14 @@
      "output_type": "stream",
      "text": [
       "<xarray.DataArray ()>\n",
-      "array(-0.00559998)\n"
+      "array(-0.00701943)\n"
      ]
     }
    ],
    "source": [
-    "# final score\n",
-    "scores_bench = scores_bench.to_array().mean().reset_coords(drop=True)\n",
-    "# score transfered to leaderboard\n",
-    "\n",
+    "# averaged variables to one single value\n",
+    "scores_bench = rpss_bench.sel(latitude=slice(None, -60)).weighted(weights).mean('latitude').mean('longitude').to_array().mean(['lead_time','variable']).reset_coords(drop=True)\n",
+    "# final score score transfered to leaderboard\n",
     "print(scores_bench)"
    ]
   },
@@ -755,9 +772,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python [conda env:s2s-ai]",
+   "display_name": "Python 3",
    "language": "python",
-   "name": "conda-env-s2s-ai-py"
+   "name": "python3"
   },
   "language_info": {
    "codemirror_mode": {
@@ -769,7 +786,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.10"
+   "version": "3.8.6"
   },
   "toc-autonumbering": true
  },