diff --git a/__tests__/SingleThread.test.ts b/__tests__/SingleThread.test.ts
index d7d2e4c..eb1e023 100644
--- a/__tests__/SingleThread.test.ts
+++ b/__tests__/SingleThread.test.ts
@@ -19,7 +19,7 @@ describe('SingleThread', () => {
     //   writeFileSync(`./__tests__/fixtures/sarafu-300.solution`, solution);
     // }
     expect(solution).toEqual(read);
-    expect(cummNumProbes).toEqual(3);
+    expect(cummNumProbes).toEqual(22);
 
     expect(await threadRunner.solutionIsComplete()).toEqual(true);
   });
diff --git a/__tests__/fixtures/sarafu-300.solution b/__tests__/fixtures/sarafu-300.solution
index fd6e0ba..7bbcabc 100644
--- a/__tests__/fixtures/sarafu-300.solution
+++ b/__tests__/fixtures/sarafu-300.solution
@@ -1 +1 @@
-(2-0:0)  [2 1 3 2]
+(2-0:3)  [2 1 3 2]
diff --git a/src/Worker.ts b/src/Worker.ts
index 969080c..ae9bbf3 100644
--- a/src/Worker.ts
+++ b/src/Worker.ts
@@ -217,14 +217,10 @@ export class Worker {
     await readSarafuCsv(filename, (from: string, to: string, amount: number) => {
       if (parseInt(from) % this.numWorkers === this.workerNo) {
         if (parseInt(from) % this.numWorkers === this.workerNo) {
-          if (['1','2','3'].indexOf(from) === -1) {
+          if (parseInt(from) === 0) {
             this.debug(`skipping transaction from ${from}`);
             return;
           }
-          if (['1','2','3'].indexOf(to) === -1) {
-            this.debug(`skipping transaction to ${to}`);
-            return;
-          }
           this.debug(`not skipping transaction from ${from} to ${to}`);  
           this.addWeight(from, to, amount);
         }
@@ -236,15 +232,6 @@ export class Worker {
       const [ from, to, amountStr ] = cells;
       const amount = parseFloat(amountStr);
       if (parseInt(from) % this.numWorkers === this.workerNo) {
-        if (['1','2','3'].indexOf(from) === -1) {
-          this.debug(`skipping transaction from ${from}`);
-          return;
-        }
-        if (['1','2','3'].indexOf(to) === -1) {
-          this.debug(`skipping transaction to ${to}`);
-          return;
-        }
-        this.debug(`not skipping transaction from ${from} to ${to}`);
         this.addWeight(from, to, amount);
       }
     });