data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKAAAAB4CAYAAAB1ovlvAAAAAXNSR0IArs4c6QAAHGJJREFUeF7tnQmcjWX7x6+TNVuFhEoUyZYtUQgpr+KNqCytWr0VWRKSbNmyzYyZMZYJYWyhiVRvb6WoJBESkSX7DMa+ZZj/53vP/34858yZOc+ZOWNOx31/PvOxzP3cz32u53eu9XdfjyslJSVFzDASyCEJuAwAc0jy5rZKAgaABgg5KgEDwBwVv7m5AaDBQI5KwAAwR8Vvbm4AaDCQoxIwAMxR8ZubGwAaDOSoBBQAN23aJLt27cqxjZQpU0YqVaqUY/c3N845Cbg2btyYUrBgQbWD9evXy5133pnublauXCn16tXLlt2eOnVKKleunC1rm0WDVwKuTz/9NEVrn9mzZ8uZM2fk2muvlYMHD0rdunXlt99+Uz8A83//+58sWrRIjhw5EvBPhBZ++OGHA76uWTC4JeBasmSJBcABAwYo8N1www2yfft2+euvv+Suu+6SIkWKyOHDh+Xnn3+WTz75JNsA2KJFi+CWltldwCXg+uSTTywAXn311ZIvXz45evSoXHfddXL69GkpUKCAnD171tKM586dU38P9EAD/vvf/w70sma9IJeAKz4+3gLgqSOJsuXbjy/Llq/Kk1/qtnlJzp47p+4HAB955JHLcm9zk+CRgGvRokUp2vn/I7aHNJb1sidfWblQu6PszV9OxM7WcrlS/82fmRi5UpKl+J7v5NqdX0mx84lyqsEbcrxiqtb7/fffpXXr1plY1VzyT5aAa+HChZYG3BL9slQomksuPjZeChYqpD7XoY2rJd+BrT4/45kTx6RM+26yb98+uXjxoppfvHhx6zrMNiadcfLkSan0eWdJrt5Gjtd42tKAjz76qM/7mAmhJQHXggULLABunfCKXN2su9xWubrs379fSpUqJSterC/1CqWaSV+j+NStsmPnThXIELTYAZg/f37ZsWOH7N27V/bs2SONLqyRkjeVcQNgmzZtfN3C/D7EJOCaP3++ZYL/jOksrgd7yfnz5+Wqq66SatWqyQ8v3it1C5+3PnaRph2lQLX6ciDstTSiKBq7Wf7atdsCYLFixaw511xzjXz77beSO3du+fHHH+WNmrnl4oWLcqzGU5YJfuyxx0JMvObj+JKAa968eZYG3D7pVUlp2lMlhDds2KAA+OPLDaSeBwDz315bEif0TLP2dVM2KQAuXLhQHn/8cSn0/2aciX///bcQQScmJioz/VDB7XLhwgU5eueTlgnmGjOuLAm45s6dawFwx+TX5OL9PVRZLG/evAo0q15tLHULXjLB1zTvJOe2rRPJlUvObv7ZTVrXTUED7lIpHEwwWk8PzO+JEyfUPwsXLizVj66Q5AvJbgB84oknrizpm08rrtmzZ1sA/Cu2iyQ37uZWl82/5zcpcmi7T1Fhts81eloOHDhgBSH4gnrs3LlT+YCMcuXKKQCiAZOqdbA0YPv27X3ex0wILQm44uLiLADu+qCr/H1fVzcAbpg8WM6tWurzUxcqXlLqRn+jggz8PKJeNKEdgICQUbZsWalx7Hu5cPGCJFW9BMAOHVL/bsaVIwHXzJkzrSBk99Q35GyD11X145ZbblFSWNvlAalX5FIQcnXV+lKgWgM5PHtkGikVjtkge/ftt0wwlRU9KOtlBEDygE8+meoPmnHlSMA1Y8YMSwPund5dTt/7qtSuXVu2bNkiN998s/zaFQAmWxIp0XmUHF08UQrVayFJC8LdJFVownrZt/+AzJgxQ4GJ1ItdAwJCBuCuefwHZaoPVWmn/o9KyFNPpUbEZlw5EnBNnz7d0oD7PuwhJ+t1lunTpyswEAWv79YsDQBzFy0pSQsj0gQhBaPXyf4DCXLjjTcqX9Blq5ig/ewArHXiRzcAogGfeeaZK0fy5pMqCbimTZumAEiDhAMz35QTdV9x8wF3Du8kVc/tdiSughM2KB+Q4APKVp48edxMsBsAT6YC8GClJxRQAeCzzz7r6D5qUjmXSL3GIrO/cX6NmRl0EnBNnTrVMsEJs3rJsTovuQGwRLGisnXjegXQjEaBgoUkb5FLQYfnXMCnWdcwoGufWikpF1MksVJq7g8T/NxzzzkXUIcmIiuXGRA6l1hQznTFxsZaJjgx7i05UvsFNwBuHNJJ7k7Z53Pz0BMKT1ivSnhaA9pNMOCza0BPAKIBn3/+eZ/3cZtgQOifvIJwtmvKlCmWBjw0p48crtlJ1XD//PNPueeee2RLn0fcfMCSPWIkJfm8JM0dJecT3M+R5Iv4RRIPHpKiRYuqRLQmJejPTQ2YcdNNN0mJzfOVVk2omFp+QwO+8MIL/ovIgNB/mQXRFa7JkydbADw8t68crP6sCiIOHTokt912m2zt28oNgPkr1JJiHXrL3sGp0at95A1fLQcPHZaZM2cqcwqRNb0BACVF5EDFthYAX3zxxcyJxoAwc3ILgqtcEydOtAB4ZH4/Saj2tCqhkQskkbyt36NuALy6WgO17TMbVqTZfp6wn+XQ4SRLA1Id0WPt2rXCD6NmzZrSvMA2BcD9t6cyYNCAL7/8cuZFYkCYednl4JWumJgYC4BHP3pHDlR9yr0Ut3yWXLNyns8t5r2lkpx9LVZpTmj9VELsPiALdO3aVa0TEREhpbYslBRJkf0VLgHwlVde8XmfDCcYEGZNfjlwtSs6OtoKQo4t6C/7KncUjmlCGOCoJP5aIAc0L1gyhX6Z7gZAgpD//Oc/Wb+VAWHWZXgZV3BFRUVZGvDEogGy5472SnNxMi4hIUHuuOMOaztff/21olQBSo5tVqlSRb755hul7QBt9erVpWLFiir4WLFihQIx5lYPwJcrVy6VK6QSwthbPpWGjwl+9dVXA/PROzSRFcuWyf67Gok8k5a36PQmJNMhTmRl7N69W1WUsjIICrPrPHZW9hWIa12RkZEWAE9+PFB23f6E/Prrr7Jt2zZVDYE4oMdLL70ka9askaFDhyrwNWzYUKKioqRbt24KcHXq1JHjx4+rU3XJyckKnA8++KC6HPBBUoALSHCTf+UkyZM3vxsAX3st82DxFMawuyvL77v2yAu9+kixB1v6JSuODEyaNEn5rN27d1dfpMyOIUOGSP/+/TN7uZInIH733XczvUYwX+iKiIiwTPCp+EFyvuy9klT4NnVIfPHixVK+fHlr/2guNB/akVwfD2r58uXSsWNHFbTg+3GIHSY0rOeWLVuqdAwaFX4haRi0JwIt8vNkKV+pquy9LVUDYoK7dOkSMFkNGzZM8m9aKzvWrJYB4yKkeDNnRz75TFzLF2zevHkyf/58tXc90O50kNi4caP6bAw+L9UkLABfNPuAZMsa9sHZGLpMUJ5MSkpSLgnHHziDTQbCPsgkvP/++6ELwPDwcEsDnlk8RG7Nc0yWXt9Ozl9IUZqKnF56A9AhfACV0eBgO3nFChUqyNatWyV524/y2OnFsufWVrL71tSjmJhgHaQEAoWAiC/A/qWLJH5arLwzepyUbpma8klv4F4MHDhQuR2UBVu1auUGQExydHS0Si/Vr19fSpQoob5cuCrff/+9+gLiRgAmPTwByDxq7QCWH+SHr02SftmyZcqqYHmwFoyQB+Dy5ctT9Gm1a9dMlcpHvlcf/IszlzRfIACh1yie67TUzptaWdnXfIzsPJ/KmgbMDRqkpngCMTQAaSmyPOJ9mRERJoMjoqTkw95P3sH+Hj58uAKVDobsAER70zkCzuL999+fRtOhGfGR58yZo0Csgzc7AD/77DP59NNPpWfPnl59S7RvbGysMrv9+vVT9wh5ANIdCzO6evVqgb9XunTpQDx/n2vgI+rSHKaHb34ghx2ArPtd2EiZGRkug8dHScmH3EHIXpiPs9+5c2cLXBqAAKFHjx4CY/vee+/NcJtoOEAYFhamAi4NwM2bN8u4cePUfeyHtTwXgyUeHh6u9gI76IoAYCAffLCs5QlA9rVs7HCZPSFSBoVHWpoQ8AEWTB4+KKDRQwMQzYZv++abb/r8eJQXARpmHD9aA3DQoEHStGlTR1oeDYg7MmbMGJVdCGkfMFTfE+INgAqE44ZLXNR46fv+aCnTqp2MHTtWpY3QcHb6GHM1AEeMGKH61thTShkhkeg5Pj5emWIAOHHiRBVNf/DBB24Az2gN5hLsAVoDQJ/f++CbkB4A2emaKVESNXSwVKl/n5y+o7r06dPHcvrtn0QDEJJETEyM0kZOBr4cfiTMcAD4zjvvyJIlS5Rf53R8+eWXKrgjw2AA6FRqQTQvIwCi8UY80Up++mKpjJg4WSp19E4D0wDkeAG9E3Vk6utjEtAQyZLGAYBvvfWWfPfddyr4cDqIiPEbIXUYADqVWhDNSw+A+GhoJtJBD5e6TqaMGin9x4RJ2TZpT+RpAJJoR4s5DdDIl7733nsyYcIEBUD2QmJ71KhRjiWECUeTtm3bVl2XlWS245vmwMSQbVLuDYCAb9asWSqRTGWBBPAvUyIleugQeXPo8DSaUAPwww8/VLk9pw00SbdAwIVcAQDRnlSR0GTXX3+9z8fMPtkfzZrIFRoN6FNkwTfBGwAXLFggq1atUg/X7s/9PjNWxvR/W3oOGSaVn7pEitUARKNRfiS69VWWI4IloEFjUsbUUfDcuXNVFYlyoydLyFN6dKKNi4uT0aNHqz49BoDBhy+fO/IEIK2F6XFNbdbeMkQvpEH45nvDpdKTqT6hPRFNbo+jqqRiSJp7G1Q0MJe33367Ch4YGoBUWQhC7rvvPhVRpwdCavDsHb8RYofJA/p81ME5wQ7AL774QkWhgwcPduvW4LnzTbM+kFH9+shbw0fKHR06uQGQwGXatGmybt06lSCm7quDEnKJ/D8lNlI1BA4aYPZKCHVf9kWVBN+OP/U8+uZA3qAJPOU8iB0MA8DgxJfPXWkAcjwUHwzN58T/2jx7qox6u490HTBI3l30WRoyAhUjQKJpVgAIfw/KFT4bVR378KwFA9aPP/5YaWOuLVmypAo2qDMDunbt2qn8nx4GgD4fdXBO0KU16GPUcO0EAV873r5glgzr1VM2nL9Klm/b6caG0dceO3ZM+XQEDNSPvZl1uwn2vKc6kJWQoNgwmHQibDvrxgDQ11MK8t+//vrrik5GTTU9ny2jj3Byx5+yad8BuadmDbm5SrVMfVpedUFVBHObmUE+Ef4kZp36cCiOkE3DEHXy8Dp16uT1ueHTaSZ3eg+29f2NpciJIzJuzGgp3qiZX8+fKHbp0qWq0Sen/Yh+PbmCGX4BTp5UuUSobAQj+sw0Z24w2b4aBdjXxtQT9TtxQfz6kAGYHLIApB0wD8uufYhECUhgbxNtwv4hzUEzJmqutWrVcotOCSaali4mq+IXqmR1ieatHImciBlf8aGHHhK+CJhXNDF5Qc96s7cFNSkW4KH98DEbN26sCBFwDu19Fx1tSERRvIjSq1atqkAdLOOKASAPceTIkYql0qxZM6VVGGhBzCQ5QqJSNJX2xQAgjJRfp06QeRMnyMCw8VKqRcaN1En3AH78TkppVF1IzWgTSjkuo5IeXxI0H0x0SLEkzaGtAeBbb73VLUDxF0T4rFSAaDjgKxfp79qZnX9FABBnnxwcpjC9wz1oQsigBAV9+/ZVD0gDEP6eE1IrqZ7PP/9cRdycqSbpDQDHjx+vzsho5g25RG8g1KRYwKbPxwBAAqkaNWqon6wOjhLAcvcnKMvqPTO6PuQByKsfAMTdd98tzZs3z1CWmphKOgTzaQcgF347boTERY934xPqBf/73/+qoAfenz7GYAcg81ifagoDepYdhBBRoX0BXDspFgBCZKAMiN9H2ob+O/RYdEqOIBhCezL4O76o/bBZdgLM19ohD0AOF0EKQPvYyabpCYY+1phqriGAwQTbGczwCWdHR8qAsAgp3SI1usXkEnRgOu2OvicANQghwBIEQXLA3NuBSRnPvk8AyPqcb8E3hDrGgNrPORv8XFjY+LCAGHY7LgZanxIiWpM8KKVEA0BfX4cA/l4HIfqhk+B1MtAyb7zxhqJO4cd5ApA1VowfJVPHjlYHnQ6ULidTp05Vms/TrHkDoN4Px1k5VYe5B+yYX2+m2Q5AzihzJIBKCXQv3AZYMtSMNVsb6hggJbCiHEj1hmCLz2IA6AQBAZqjAUj0R3Chzyc7WR7QNWrUSCIjI70CkDUgtY4fMlCuKna9DF78ZZrjlMxJD4D8DqBzwo7jqwQckBe8mVQ7AFmPBDgBE/4mETXv18M8w/KBxo+5pvqDiYaR3bt3b+V6oCENAJ08/QDN0QCkxkoaBLPkdKBRmjRpooIHbxqQdTi8H/5ce8l1/Kj0Gz1WyrVJJR/Yhy8AwrIGgGg2NKG9p7ZeBwCSNvrXv/6ljslmdRgfMKsSdHi9BiBaAq3x9NOpL0X0NdBM5OswqYDCGwA5RA9IMX9Hv/5MacJ3x4anIbWmB0DNSySvh2nETJI0RwuS57MPAEgyGy3JG+yzOshPEoDY3+OX1TWzcn3IByGQAwgO8Lm81Vo9hQcoOBBE0OIZBTMX8AFKfC7eKMXAHEcPGyI9Bg914xN6A6CdFAv4qFBops0ff/yRhqsIAMlh4kawf+6Z2RweOUACGaeHq7ICLKfXhjwAqYTQDo7UiK/XQHBAn3whDBacfU8AEiETTRKp6ncsa0F7I7V6AyBUeyJVNKydFAswiaShdWlgsrYGIEc8SWwT3RJUkCoiaQ2odGOB9B46axPkoPUAsJNsgFMAZXXeFQFAvvVvv/22Cixw2r09AMw0mg3nXbcKtgMQ8KFJOe3mSbnyBKGm93sCUJNiAZ/9LVL6eq0dNQg5MqABSBqGASmW/aMN8ecwzRkddNdrY9ozqzmzCrKMrr8iAIgAqINCbUdrEBXSpwZNQh4Nswo4cPR5YaJ+UBqAcPIgs5Ig9mW+NsV9oPiEbw0bKcfLV7EqIZBNeYuoL1Ise6XFMcDDxwT4mGAAiBb74Ycf1L4BIGVF+9uoshMo2bX2FQNABIiGQSvxQxIXUOrOVg888ECaVAoAJB9IuoScmtP2IZBax/bvJ3Vatpb1F3IJ70EmGewPLxESAx20OBaABgeAaD+qIHx5nJ7Qyy7gBGrdkAUgeTIiS6cn2bwJFHOL6YJb6BR8ep0dC+OkR7dukli4mJStUUv5jZTR/BmcrqPER3IZtjXt3FjDW7rGn3WDaW7IApBqBtQrErCZ8X3QPkTElLL0ixv9fXD7/9wiP61dJ483aSjX31nL38sVZYzIGC2cpQbuft/58l0QsgCEks+5DaJVf8mgmEsoWgCQ8xue6Rtqt5hD/EcG0SUn4TwrGRyv7P7cM1Ij5YyicjltksmaAA+fFQ3O/XUQcvmgcXnuFNIApPwGKxkCJmbUCRlUk0k5O0zy2t4hlWI/dCtKYZhC3QOQoj++GcwbWDQ6ygaAnJSjA8NncTOl78jRPptk2sGH2eaeOgi5PJC4vHcJaQCiNch7wT7hQabHw9Mix2/86quvVI4O0NrPBROB6tYaBCeerXQBIaQEqE69evVSYNcApKYMi2bOhCjVLjgjUit+Htqbui7sZc80zOWFR/bfLeQBSIdUTQYlCk6PkQyXD5+RNInm82kAAibqwphYfLH0eHjch1Zs/IkPagcgj9ICYViElHo4LbMa5jO5RoizuuxmAJj9X4JsuYNnZwQ0IGRQQOhJBiVHh1m1g49NaQBSgZgyZYqq//oq52laFcls/o4JRgPqYTXJjIh069SamJioasFcZ6/5GgBmCzyyf1FvvWF0N1R4dPhXpFigL0Flwux6pkk0AOlshSnXlCZfuwfQAIdynicAlSYcO1zmxEQpn/CWR9urQ+nkCGkBDAvHPgwAfUk7SH+fXns2Cv/QoAgaCBhgongjk9o1IAGMPuju5ONy+IfSH+baGwBZY1VMuEwcOUw69+0n09dvUclqTr55DgNAJxIPwjkZNajEDEMqoCJCqsP+Nij7R9EaEM300UcfOT7Xi7mnpAczOT0Acp+vRw+VsIH9pe2LL8uzYTFepWgAGITgcrKljABIfg9/kBwhJAS0lbfqggYg/EDmOz2Py5uiOO9B/jE9AEKUpdZb/vhBWfft1/L2qDFeSa0GgE6edhDOSQ+AmkwK2RSGsTbHgNCzsK8BCJ2Ld5g4fV8bVRQIsbxPxBsAqe1yUo8qC+8dWT1pvMSMGCq9h78vFdo9Y3zAIMST31vyBkC4cxx9JBWj+Xz4hLBPNDvZztHTAPzpp59UTRZf0Vd7DdYjoIDcQE8aTwDCrOH3pIeo8eqx4cNJMu7dd1Sn1spPXmqSaTSg348+OC7wBCAJXrQOprFaNfdmQ+mRQTUAyftxwIfWHfAJ0xusQ+s2DpJzL+jvdgBCBWNfUOLtPQT1ehap9b1hFggNAIMDT37vwg5AErzk+DjOyHFFb8NOBqUMRyteeyUEXxGfjesJMDzNNS0+KONRQ9ZNheyJaHKC/D8VFBLN6bGSPZnVBoB+P/rguEADEKIA2ogEb3pMZvuONRkUaj6dUO21YMwn7TvQbPiE9pcVQrNnfe6jwakBSCmQJDbm3QkxAlLr6H59pfug9+RijbqmFhwckPJvFwAQbQWbBUef3sxOBykXAEUfFcgMntUP8nyAkPO3DOj1gM+z/RkABLAcu8R39KzAZLSfLXOmq3bBDR9pLUWbtjBsGKcPL1jmAUACC86B0A3K38GbioiQaYFRpkwZfy9X8wEgKRwqKLT5cNrLRd+MTq2zIiPkyQb1pHX8N5naQ7BfFLJkBIIBaExZacrI4fPMklF58OQDOTjkT1cGT8Akx46TWptWSeWGjUVmhx4IQxaAwf7N92t/HZqIrFwmUi/0QGgA6BcScnByiILQADAHMeX3rUMQhAaAfqMghy8IMRAaAOYwnjJ1+xACoQFgphAQBBeFCAgNAIMAS5neQgiA0AAw008/SC7UINyREiQb8m8bBoD+ycvMDrAEDAADLFCznH8SMAD0T15mdoAlYAAYYIGa5fyTgAGgf/IyswMsAQPAAAvULOefBAwA/ZOXmR1gCRgABligZjn/JGAA6J+8zOwAS8AAMMACNcv5JwEDQP/kZWYHWAIGgAEWqFnOPwkYAPonLzM7wBIwAAywQM1y/knAANA/eZnZAZaAAWCABWqW808CBoD+ycvMDrAEDAADLFCznH8SMAD0T15mdoAlkAaAvF+Nt/7QDy8nBp2m6B4aSm+EzAk5/lPu6QZA3lexZ88eRw196DBPv7sqVaqo18xXr149YJ+ZPdSvXz9g65mFglcCbgDctGmTpXnCw8OFhox16tRRbxTnBcloJ97gDTh4pxoNGg8fPqy6idIhlBcp04fv+eefV/Ppw0w3eP7k7ZL01ePlMLzkj85RXbp0UffwNpgXKi9lDt7Hn/M7cwMgDRd100U6wwOqihUrKq1Ia9nevXtLfHy8aq7Ny1toO4vJBqS0weXFL7y2lL7IDJoyrlixQvXHo0czPfLoQNq2bVvVNJJu8rxTw9tAG/OmITNCWwJuAExKShJ+GHSG5y3daC0aKwI23iAJQHmZ3+nTp1XnUEBG821eg8W/T506pUwzg47x/DCH39MXmZdH04+ZuQCc12Z5GwkJCcYMhzb21KdLA0BMKiNP7tyy6uNYkeRzl0UMFe5rJYWK3mDdCwDSh9mM0JaAGwABnwbg2iXT5MF9M+R4vhvkaLmmcuimhnJBcqdKw+USSUlx/zMTcrrx7A7J9Uuc3HRup+R7oJvsvKWltQpvjzQAzIRQ/2GX/B8ZsGGJJJNVtwAAAABJRU5ErkJggg==110i121I'm kind of bummed that I didn't find a beautiful one-line solution using FIND FIRST, but it just gives the value it finds, not the position in the list, which is what we need to find the line endpoints in WIN LINES. So it's a plain old fashioned FOR loop.X00false1379data:image/png;base64,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103.3.3.TIF B. See below.playingfalse3.3.3.53.3.3.TIF B. See below.playingfalse3.3.3.5X's turn?3.3.3.1 and 3.3.3.5
See 3.3.3.3 above for why we have to test PLAYING.available squares3.3.3 TIF A, here on down. See comment below.available squares13.3.3.3: If the ninth move, the one that fills the board, causes a win, then the game isn't a tie even though no more moves are possible.3.3.3.5: There are many ways to do this. The way shown here uses a /flag variable/, i.e., a variable whose value is true or false. In this case, PLAYING is true if further moves are allowed.3.3.3 TIF A
This is quite complicated!
We are asked to make a check, never mind details yet, after the eighth move, because that's when the last move is forced. But if the eighth move causes O to win (it has to be O because odd numbered moves are X and even numbered moves are O), then we shouldn't do this. That's why the IF around this code has to include a check of PLAYING.
If O didn't just win, then we are going to imagine filling the final square with X (because move 9, an odd-numbered move, is always X). But we're not really going to change what's on the board, just what's in the BOARD list. (Really we shouldn't even do that; we should copy the list and change the copy. But if the eighth move has just happened and X can win on the next move, it's okay that we've already marked that square as belonging to X; we'll do it again when player X actually clicks the square.)
It's just after the eighth move if there's exactly one number left in BOARD. We compute the list of numbers in BOARD, for two purposes: First we see if there's exactly one number. If so, we change that item of BOARD to X. Then, if X didn't win, we can announce a tie.
Note: The code from 3.3.3.1 that checks for a tie on the ninth move is now never going to succeed, because we're catching ties early. But there's no need to remove it, just in case a player manages to click the ninth square before we locate it. Maybe mark it as obsolete in a comment. board posmade move!X's turn?trueorginal possible moves0possible moves3.3.3.TIF B. See below.playingfalse3.3.3.5falseX,O,X,O,O,X,O,X,Xfalse-100,50100,50-100,0100,0-100,-50100,-50-50,100-50,-1000,1000,-10050,10050,-100-100,100100,-100-100,-100100,10000