diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f948547..4665fe5 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,3 +1,3 @@
 # Contributing to aoc2023
 
-Contributions welcome! Feel free to ask @dieseltravis any questions. ☺
+Forks welcome! Feel free to ask @dieseltravis any questions. ☺
diff --git a/package-lock.json b/package-lock.json
index 00d9f4a..016db0a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "branch-three-oviraptor",
-  "version": "2023.12.15",
+  "version": "2023.12.16",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -39,9 +39,9 @@
       }
     },
     "@eslint/js": {
-      "version": "8.55.0",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.55.0.tgz",
-      "integrity": "sha512-qQfo2mxH5yVom1kacMtZZJFVdW+E70mqHMJvVg6WTLo+VBuQJ4TojZlfWBjK0ve5BdEeNAVxOsl/nvNMpJOaJA=="
+      "version": "8.56.0",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.56.0.tgz",
+      "integrity": "sha512-gMsVel9D7f2HLkBma9VbtzZRehRogVRfbr++f06nL2vnCGCNlzOD+/MUov/F4p8myyAHspEhVobgjpX64q5m6A=="
     },
     "@humanwhocodes/config-array": {
       "version": "0.11.13",
@@ -652,14 +652,14 @@
       "integrity": "sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA=="
     },
     "eslint": {
-      "version": "8.55.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-8.55.0.tgz",
-      "integrity": "sha512-iyUUAM0PCKj5QpwGfmCAG9XXbZCWsqP/eWAWrG/W0umvjuLRBECwSFdt+rCntju0xEH7teIABPwXpahftIaTdA==",
+      "version": "8.56.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-8.56.0.tgz",
+      "integrity": "sha512-Go19xM6T9puCOWntie1/P997aXxFsOi37JIHRWI514Hc6ZnaHGKY9xFhrU65RT6CcBEzZoGG1e6Nq+DT04ZtZQ==",
       "requires": {
         "@eslint-community/eslint-utils": "^4.2.0",
         "@eslint-community/regexpp": "^4.6.1",
         "@eslint/eslintrc": "^2.1.4",
-        "@eslint/js": "8.55.0",
+        "@eslint/js": "8.56.0",
         "@humanwhocodes/config-array": "^0.11.13",
         "@humanwhocodes/module-importer": "^1.0.1",
         "@nodelib/fs.walk": "^1.2.8",
@@ -1231,9 +1231,9 @@
       }
     },
     "globals": {
-      "version": "13.23.0",
-      "resolved": "https://registry.npmjs.org/globals/-/globals-13.23.0.tgz",
-      "integrity": "sha512-XAmF0RjlrjY23MA51q3HltdlGxUpXPvg0GioKiD9X6HD28iMjo2dKC8Vqwm7lne4GNr78+RHTfliktR6ZH09wA==",
+      "version": "13.24.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-13.24.0.tgz",
+      "integrity": "sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==",
       "requires": {
         "type-fest": "^0.20.2"
       }
diff --git a/package.json b/package.json
index ba4dfec..2c5b3af 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "branch-three-oviraptor",
-  "version": "2023.12.15",
+  "version": "2023.12.16",
   "description": "Travis's Advent of Code 2023",
   "author": "Travis Hardiman",
   "homepage": "https://branch-three-oviraptor.glitch.me/",
@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "connect-timeout": "^1.9.0",
-    "eslint": "^8.55.0",
+    "eslint": "^8.56.0",
     "express": "^4.18.2",
     "express-rate-limit": "^7.1.5",
     "semistandard": "^17.0.0",
diff --git a/public/funs.js b/public/funs.js
index e31be01..781bc12 100644
--- a/public/funs.js
+++ b/public/funs.js
@@ -1324,22 +1324,32 @@
           });
         });
         const render = () => input.map(r => r.map(c => c.isRound ? 'O' : c.isCube ? '#' : '.').join('')).join('\n');
+        const getLoad = () => input.reduce((acc, row) => {
+          return acc + row.reduce((acc2, c) => {
+            if (c.isRound) {
+              acc2 += c.load;
+            }
+            return acc2;
+          }, 0);
+        }, 0);
         console.log(input.slice());
         // progress
         const pc = cycles / 100;
         let p = 0;
         let lastGrid = render();
+        let lastLoad = getLoad();
         console.log('first grid:\n' + lastGrid);
+        console.log('first load:\n' + lastLoad);
         for (let i = 0; i < cycles; i++) {
           // N
           for (let x = 0; x < xmax; x++) {
             for (let y = 0; y < ymax; y++) {
-              if (input[y][x].isRound) {
+              if (input[y] && input[y][x] && input[y][x].isRound) {
                 let newY = y;
                 let lastY = y;
                 while (newY > 0) {
                   newY = newY - 1;
-                  if (input[newY][x].isEmpty) {
+                  if (input[newY] && input[newY][x] && input[newY][x].isEmpty) {
                     lastY = newY;
                   } else {
                     break;
@@ -1358,12 +1368,12 @@
           // W
           for (let y = 0; y < ymax; y++) {
             for (let x = 0; x < xmax; x++) {
-              if (input[y][x].isRound) {
+              if (input[y] && input[y][x] && input[y][x].isRound) {
                 let newX = x;
                 let lastX = x;
                 while (newX > 0) {
                   newX = newX - 1;
-                  if (input[y][newX].isEmpty) {
+                  if (input[y] && input[y][newX] && input[y][newX].isEmpty) {
                     lastX = newX;
                   } else {
                     break;
@@ -1382,12 +1392,12 @@
           // S
           for (let x = 0; x < xmax; x++) {
             for (let y = ymax; y--;) {
-              if (input[y][x].isRound) {
+              if (input[y] && input[y][x] && input[y][x].isRound) {
                 let newY = y;
                 let lastY = y;
                 while (newY < ymax - 1) {
                   newY = newY + 1;
-                  if (input[newY][x].isEmpty) {
+                  if (input[newY] && input[newY][x] && input[newY][x].isEmpty) {
                     lastY = newY;
                   } else {
                     break;
@@ -1406,12 +1416,12 @@
           // E
           for (let y = 0; y < ymax; y++) {
             for (let x = xmax; x--;) {
-              if (input[y][x].isRound) {
+              if (input[y] && input[y][x] && input[y][x].isRound) {
                 let newX = x;
                 let lastX = x;
                 while (newX < xmax - 1) {
                   newX = newX + 1;
-                  if (input[y][newX].isEmpty) {
+                  if (input[y] && input[y][newX] && input[y][newX].isEmpty) {
                     lastX = newX;
                   } else {
                     break;
@@ -1429,26 +1439,28 @@
           // console.log('E\n' + render());
 
           // test (this doesn't seem to work):
+          /*
           const newGrid = render();
           if (lastGrid === newGrid) {
             console.log('grid repeating', i, '\n' + newGrid);
             break;
           }
           lastGrid = newGrid;
+          */
+          const newLoad = getLoad();
+          if (lastLoad === newLoad) {
+            console.log('grid repeating', i, '\n' + newLoad);
+            //break;
+          }
+          lastLoad = newLoad;
           if (i % pc === 0) {
             console.log(p + '% ' + (new Date()).toISOString());
+            console.log(lastLoad, '\n', render());
             p++;
           }
           // console.log('last grid:\n' + lastGrid);
         }
-        const load = input.reduce((acc, row) => {
-          return acc + row.reduce((acc2, c) => {
-            if (c.isRound) {
-              acc2 += c.load;
-            }
-            return acc2;
-          }, 0);
-        }, 0);
+        const load = getLoad();
         console.log(load);
         return load;
       }
@@ -1675,6 +1687,8 @@
           console.log((i + 1) + ' of ' + startLen + ' ' + (new Date()).toISOString(), max);
         });
         console.log(max);
+        // 7965 too low
+        // 8079 too low
         return max;
       }
     },
diff --git a/server.js b/server.js
index e1ffeb3..caa86c8 100644
--- a/server.js
+++ b/server.js
@@ -18,6 +18,7 @@ const f = require('./public/funs');
 const limiter = rateLimit({
   // 30 seconds
   windowMs: 30 * 1000,
+  // 100 requests in that time
   max: 100,
   // Return rate limit info in the `RateLimit-*` headers
   standardHeaders: true,