diff --git a/2021/Timpy/day_1/input.txt b/2021/Timpy/day_1/input.txt
new file mode 100644
index 0000000..fc87999
--- /dev/null
+++ b/2021/Timpy/day_1/input.txt
@@ -0,0 +1,2000 @@
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\ No newline at end of file
diff --git a/2021/Timpy/day_1/solution.ipynb b/2021/Timpy/day_1/solution.ipynb
new file mode 100644
index 0000000..df31146
--- /dev/null
+++ b/2021/Timpy/day_1/solution.ipynb
@@ -0,0 +1,1219 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Imports"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import numpy as np\n",
+    "from time import time\n",
+    "\n",
+    "from numpy.lib.stride_tricks import sliding_window_view"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Load input"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [],
+   "source": [
+    "#INPUT_FILE = 'test.txt'\n",
+    "INPUT_FILE = 'input.txt'"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[188,\n",
+       " 192,\n",
+       " 193,\n",
+       " 194,\n",
+       " 192,\n",
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+       " 368,\n",
+       " 357,\n",
+       " 370,\n",
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+       " 386,\n",
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+       " 386,\n",
+       " 402,\n",
+       " 379,\n",
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+       " 430,\n",
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+       " 485,\n",
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+       " 514,\n",
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+       " 522,\n",
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+       " 548,\n",
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+       " 560,\n",
+       " 563,\n",
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+       " 600,\n",
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+       " 595,\n",
+       " 596,\n",
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+       " 613,\n",
+       " 630,\n",
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+       " 1113,\n",
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+       " 1128,\n",
+       " 1132,\n",
+       " 1133,\n",
+       " 1126,\n",
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+       " 1134,\n",
+       " 1150,\n",
+       " 1153,\n",
+       " 1162,\n",
+       " 1176,\n",
+       " 1186,\n",
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+       " 1215,\n",
+       " 1218,\n",
+       " 1221,\n",
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+       " 1225,\n",
+       " 1232,\n",
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+       " 1251,\n",
+       " 1250,\n",
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+       " 1253,\n",
+       " 1260,\n",
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+       " 1276,\n",
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+       " 1310,\n",
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+       " 1325,\n",
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+       " 1360,\n",
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+       " 1371,\n",
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+       " 1400,\n",
+       " 1407,\n",
+       " 1425,\n",
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+       " 1971,\n",
+       " 1975,\n",
+       " 1979,\n",
+       " 1984,\n",
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+       " 1985,\n",
+       " 2010,\n",
+       " 2005,\n",
+       " 2006,\n",
+       " 2010,\n",
+       " 2011,\n",
+       " 2012,\n",
+       " 2013,\n",
+       " 2029,\n",
+       " 2031,\n",
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+       " 2014,\n",
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+       " 2375,\n",
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+       " 2905,\n",
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+       " 3069,\n",
+       " 3070,\n",
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+       " 3213,\n",
+       " 3224,\n",
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+       " 3365,\n",
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+       " 3453,\n",
+       " 3482,\n",
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+       " 3525,\n",
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+       " 3587,\n",
+       " 3592,\n",
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+       " 3631,\n",
+       " 3630,\n",
+       " 3640,\n",
+       " 3674,\n",
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+       " 3684,\n",
+       " 3685,\n",
+       " 3699,\n",
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+       " 3694,\n",
+       " 3727,\n",
+       " 3746,\n",
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+       " 3742,\n",
+       " 3745,\n",
+       " 3748,\n",
+       " 3756,\n",
+       " 3759,\n",
+       " 3746,\n",
+       " 3759,\n",
+       " 3762,\n",
+       " 3763,\n",
+       " 3748,\n",
+       " 3762,\n",
+       " 3760,\n",
+       " 3766,\n",
+       " 3770,\n",
+       " 3774,\n",
+       " 3776,\n",
+       " 3778,\n",
+       " 3785,\n",
+       " 3787,\n",
+       " 3788,\n",
+       " 3815,\n",
+       " 3816,\n",
+       " 3822,\n",
+       " 3832,\n",
+       " 3831,\n",
+       " 3832,\n",
+       " 3835,\n",
+       " 3834,\n",
+       " 3820,\n",
+       " 3822,\n",
+       " 3823,\n",
+       " 3825,\n",
+       " 3826,\n",
+       " 3831,\n",
+       " 3833,\n",
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+       " 3895,\n",
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+       " 3908,\n",
+       " 3910,\n",
+       " 3909,\n",
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+       " 3912,\n",
+       " 3913,\n",
+       " 3921,\n",
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+       " 3949,\n",
+       " 3954,\n",
+       " 3955,\n",
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+       " 3960,\n",
+       " 3962,\n",
+       " 3963,\n",
+       " 3975,\n",
+       " 3986,\n",
+       " 3989,\n",
+       " 3990,\n",
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+       " 4006,\n",
+       " 4012,\n",
+       " 4032,\n",
+       " 4036,\n",
+       " 4037,\n",
+       " 4038,\n",
+       " 4041,\n",
+       " 4048,\n",
+       " 4056,\n",
+       " 4041,\n",
+       " 4044,\n",
+       " 4048,\n",
+       " 4077,\n",
+       " 4076,\n",
+       " 4088,\n",
+       " 4072,\n",
+       " 4073,\n",
+       " 4075,\n",
+       " 4080,\n",
+       " 4075,\n",
+       " 4080,\n",
+       " 4081,\n",
+       " 4110,\n",
+       " 4139,\n",
+       " 4142,\n",
+       " 4143,\n",
+       " 4145,\n",
+       " 4148,\n",
+       " 4155,\n",
+       " 4157,\n",
+       " 4163,\n",
+       " 4164,\n",
+       " 4174,\n",
+       " 4181,\n",
+       " 4186,\n",
+       " 4193,\n",
+       " 4195,\n",
+       " 4198,\n",
+       " 4197,\n",
+       " 4202,\n",
+       " 4209,\n",
+       " 4208,\n",
+       " 4211,\n",
+       " 4213,\n",
+       " 4211,\n",
+       " 4223,\n",
+       " 4222,\n",
+       " 4224,\n",
+       " 4232,\n",
+       " 4234,\n",
+       " 4239,\n",
+       " 4243,\n",
+       " 4245,\n",
+       " 4247,\n",
+       " 4248,\n",
+       " 4252,\n",
+       " 4245,\n",
+       " 4253,\n",
+       " 4289,\n",
+       " 4288,\n",
+       " 4290,\n",
+       " 4292,\n",
+       " 4294,\n",
+       " 4295,\n",
+       " 4298,\n",
+       " 4308,\n",
+       " 4314,\n",
+       " 4315,\n",
+       " 4320,\n",
+       " 4328,\n",
+       " 4326,\n",
+       " 4328,\n",
+       " 4334,\n",
+       " 4330,\n",
+       " 4339,\n",
+       " 4362,\n",
+       " 4363,\n",
+       " 4364,\n",
+       " 4365,\n",
+       " 4366,\n",
+       " 4375,\n",
+       " 4388,\n",
+       " 4389,\n",
+       " 4395,\n",
+       " 4382,\n",
+       " 4393,\n",
+       " 4385,\n",
+       " 4381,\n",
+       " 4380,\n",
+       " 4391,\n",
+       " 4392,\n",
+       " 4409,\n",
+       " 4410,\n",
+       " 4414,\n",
+       " 4434,\n",
+       " 4445,\n",
+       " 4452,\n",
+       " 4457,\n",
+       " 4453,\n",
+       " 4461,\n",
+       " 4469,\n",
+       " 4468,\n",
+       " 4487,\n",
+       " 4482,\n",
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+       " 4512,\n",
+       " 4513,\n",
+       " 4517,\n",
+       " 4535,\n",
+       " 4542,\n",
+       " 4544,\n",
+       " 4546,\n",
+       " 4559,\n",
+       " 4560,\n",
+       " 4575,\n",
+       " 4576,\n",
+       " 4578,\n",
+       " 4579,\n",
+       " 4580,\n",
+       " 4581,\n",
+       " 4582,\n",
+       " 4585,\n",
+       " 4589,\n",
+       " 4588,\n",
+       " 4592,\n",
+       " 4593,\n",
+       " 4594,\n",
+       " 4620,\n",
+       " 4621,\n",
+       " 4632,\n",
+       " 4633,\n",
+       " 4634,\n",
+       " 4640,\n",
+       " 4641,\n",
+       " 4643,\n",
+       " 4651,\n",
+       " 4666,\n",
+       " 4672,\n",
+       " 4673,\n",
+       " 4672,\n",
+       " 4674,\n",
+       " 4695,\n",
+       " 4697,\n",
+       " 4707,\n",
+       " 4706,\n",
+       " 4708,\n",
+       " 4709,\n",
+       " 4705,\n",
+       " 4702,\n",
+       " 4694,\n",
+       " 4732,\n",
+       " 4734,\n",
+       " 4735,\n",
+       " 4723,\n",
+       " 4728,\n",
+       " 4734,\n",
+       " 4752,\n",
+       " 4754,\n",
+       " 4756,\n",
+       " 4759,\n",
+       " 4768,\n",
+       " 4770,\n",
+       " 4773,\n",
+       " 4780,\n",
+       " 4781,\n",
+       " 4783,\n",
+       " 4792,\n",
+       " 4797,\n",
+       " 4806,\n",
+       " 4825,\n",
+       " 4833,\n",
+       " 4839,\n",
+       " 4838,\n",
+       " 4842,\n",
+       " 4843,\n",
+       " 4853,\n",
+       " 4851,\n",
+       " 4852,\n",
+       " 4853,\n",
+       " 4834,\n",
+       " 4835,\n",
+       " 4836,\n",
+       " 4837,\n",
+       " 4838,\n",
+       " 4837,\n",
+       " 4833,\n",
+       " 4843,\n",
+       " 4844,\n",
+       " 4825,\n",
+       " 4826,\n",
+       " 4832,\n",
+       " 4833,\n",
+       " 4832,\n",
+       " 4840,\n",
+       " 4844,\n",
+       " 4838,\n",
+       " 4839,\n",
+       " 4862,\n",
+       " 4867,\n",
+       " 4868,\n",
+       " 4873,\n",
+       " 4877,\n",
+       " 4881,\n",
+       " 4888,\n",
+       " 4891,\n",
+       " 4896,\n",
+       " 4911,\n",
+       " 4910,\n",
+       " 4911,\n",
+       " 4906,\n",
+       " 4913,\n",
+       " 4915,\n",
+       " 4918,\n",
+       " 4926,\n",
+       " 4933,\n",
+       " 4968,\n",
+       " 4969,\n",
+       " 4970,\n",
+       " 4974,\n",
+       " ...]"
+      ]
+     },
+     "execution_count": 14,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "input_list = [int(height) for height in open(INPUT_FILE, 'r')]\n",
+    "input_list"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "array([  188,   192,   193, ..., 10397, 10406, 10415], dtype=uint64)"
+      ]
+     },
+     "execution_count": 15,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "input_list_np = np.loadtxt(INPUT_FILE, dtype='uint64')\n",
+    "input_list_np"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Part 1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "SOLUTION: 1754, TIME: 0.3273ms\n"
+     ]
+    }
+   ],
+   "source": [
+    "start_t = time()\n",
+    "solution = sum([x > y for x, y in zip(input_list[1:], input_list[:-1])])\n",
+    "end_t = time()\n",
+    "print(f'SOLUTION: {solution}, TIME: {round((end_t - start_t) * 1000, 4)}ms')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "SOLUTION: 1754, TIME: 0.1428ms\n"
+     ]
+    }
+   ],
+   "source": [
+    "start_t = time()\n",
+    "solution = np.greater(input_list_np[1:], input_list_np[:-1]).sum()\n",
+    "end_t = time()\n",
+    "print(f'SOLUTION: {solution}, TIME: {round((end_t - start_t) * 1000, 4)}ms')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Part 2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "WINDOW_SIZE = 3"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 27,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "SOLUTION: 1789, TIME: 1.07ms\n"
+     ]
+    }
+   ],
+   "source": [
+    "start_t = time()\n",
+    "windows_sum = [sum(input_list[i:i + WINDOW_SIZE]) for i in range(len(input_list) - WINDOW_SIZE + 1)]\n",
+    "solution = sum([x > y for x, y in zip(windows_sum[1:], windows_sum[:-1])])\n",
+    "end_t = time()\n",
+    "print(f'SOLUTION: {solution}, TIME: {round((end_t - start_t) * 1000, 4)}ms')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 28,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "SOLUTION: 1789, TIME: 0.5288ms\n"
+     ]
+    }
+   ],
+   "source": [
+    "start_t = time()\n",
+    "windows_sum = np.sum(sliding_window_view(input_list_np, WINDOW_SIZE), axis=1)\n",
+    "solution = np.greater(windows_sum[1:], windows_sum[:-1]).sum()\n",
+    "end_t = time()\n",
+    "print(f'SOLUTION: {solution}, TIME: {round((end_t - start_t) * 1000, 4)}ms')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.8.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}
diff --git a/2021/Timpy/day_1/test.txt b/2021/Timpy/day_1/test.txt
new file mode 100644
index 0000000..59dad67
--- /dev/null
+++ b/2021/Timpy/day_1/test.txt
@@ -0,0 +1,10 @@
+199
+200
+208
+210
+200
+207
+240
+269
+260
+263
\ No newline at end of file
diff --git a/2021/Timpy/template/input.txt b/2021/Timpy/template/input.txt
new file mode 100644
index 0000000..e69de29
diff --git a/2021/Timpy/template/solution.ipynb b/2021/Timpy/template/solution.ipynb
new file mode 100644
index 0000000..da33bba
--- /dev/null
+++ b/2021/Timpy/template/solution.ipynb
@@ -0,0 +1,144 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Imports"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import numpy as np\n",
+    "from time import time"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Load input"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [],
+   "source": [
+    "#INPUT_FILE = 'test.txt'\n",
+    "INPUT_FILE = 'input.txt'"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [],
+   "source": [
+    "input_list = None\n",
+    "input_list"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "input_list_np = None\n",
+    "input_list_np"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Part 1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "SOLUTION: None, TIME: 0.056ms\n"
+     ]
+    }
+   ],
+   "source": [
+    "start_t = time()\n",
+    "solution = None\n",
+    "end_t = time()\n",
+    "print(f'SOLUTION: {solution}, TIME: {round((end_t - start_t) * 1000, 4)}ms')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Part 2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "SOLUTION: None, TIME: 0.0641ms\n"
+     ]
+    }
+   ],
+   "source": [
+    "start_t = time()\n",
+    "solution = None\n",
+    "end_t = time()\n",
+    "print(f'SOLUTION: {solution}, TIME: {round((end_t - start_t) * 1000, 4)}ms')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.8.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}
diff --git a/2021/Timpy/template/test.txt b/2021/Timpy/template/test.txt
new file mode 100644
index 0000000..e69de29
diff --git a/README.md b/README.md
index ef33944..5538f65 100644
--- a/README.md
+++ b/README.md
@@ -1,15 +1,16 @@
 # De Zeus Advent of Code
 
-| Wie?           | Waar? (Repository)                                | Taal?      |
-| :------------- | :-----------------------------------------------: | ---------: |
-| chvp           | https://github.com/chvp/aoc2021                   | forth      |
-| ninewise       | https://git.fuyu.moe/ninewise/adventofcode-2021   | lua        |
-| robbe          | git@github.com:Robbe7730/adventofcode2021.git     | ?          |
-| Flynn          | https://gitlab.com/mcbloch/aoc2021                | ?          |
-| Silvius        | https://github.com/ajuvercr/aoc-2021              | C          |
-| rien           | https://github.com/rien/adventofcode2021          | C (no std) |
-| iasoon         | https://github.com/iasoon/aoc2021                 | pony       |
-| Bond-009       | https://github.com/Bond-009/advent-of-code-2021   | Rust       |
+| Wie?           | Waar? (Repository)                                | Taal?       |
+| :------------- | :-----------------------------------------------: | ---------:  |
+| chvp           | https://github.com/chvp/aoc2021                   | forth       |
+| ninewise       | https://git.fuyu.moe/ninewise/adventofcode-2021   | lua         |
+| robbe          | git@github.com:Robbe7730/adventofcode2021.git     | ?           |
+| Flynn          | https://gitlab.com/mcbloch/aoc2021                | ?           |
+| Silvius        | https://github.com/ajuvercr/aoc-2021              | C           |
+| rien           | https://github.com/rien/adventofcode2021          | C (no std)  |
+| iasoon         | https://github.com/iasoon/aoc2021                 | pony        |
+| Bond-009       | https://github.com/Bond-009/advent-of-code-2021   | Rust        |
+| Timpy          | https://github.com/timodw/aoc_2021                | Python/Numpy|
 
 * repo clonen:
 
diff --git a/Timpy b/Timpy
deleted file mode 160000
index d369b74..0000000
--- a/Timpy
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit d369b74738ac84d6742cd1b49854fd57d1ba01b2