diff --git a/2020/08/example b/2020/08/example
new file mode 100644
index 0000000..178df53
--- /dev/null
+++ b/2020/08/example
@@ -0,0 +1,9 @@
+nop +0
+acc +1
+jmp +4
+acc +3
+jmp -3
+acc -99
+acc +1
+jmp -4
+acc +6
diff --git a/2020/08/input b/2020/08/input
new file mode 100644
index 0000000..947a37d
--- /dev/null
+++ b/2020/08/input
@@ -0,0 +1,638 @@
+acc +8
+acc +37
+jmp +328
+jmp +574
+nop +321
+acc +17
+jmp +450
+acc +46
+acc -15
+nop -5
+acc +48
+jmp +358
+jmp +29
+acc +23
+jmp +11
+acc -14
+jmp +561
+acc +9
+acc +17
+jmp +136
+jmp +394
+acc +24
+acc +37
+acc +19
+jmp +241
+acc +38
+acc +44
+acc -5
+jmp -8
+acc +50
+acc -9
+acc +5
+jmp +424
+acc -15
+nop +93
+acc -1
+jmp +414
+jmp +548
+jmp +454
+acc +39
+jmp +490
+jmp +103
+jmp +214
+acc +37
+jmp +164
+acc +34
+jmp +362
+acc +24
+acc +32
+jmp +375
+jmp +500
+acc +23
+nop -1
+nop +463
+jmp +108
+acc +14
+jmp +106
+acc +20
+nop +298
+nop -39
+jmp +321
+jmp +1
+jmp +515
+nop +6
+acc +3
+acc +18
+acc -10
+jmp +353
+jmp -43
+jmp +1
+acc +0
+acc +7
+jmp +507
+nop +396
+jmp -62
+acc +30
+acc -13
+jmp +466
+jmp +137
+acc +6
+jmp +211
+acc +33
+acc +4
+jmp +269
+acc +50
+nop -65
+acc +18
+jmp -54
+jmp -68
+nop +38
+acc -6
+jmp +165
+nop +342
+acc +31
+acc +30
+nop +465
+jmp +273
+acc +35
+jmp +201
+acc +13
+acc +18
+acc +28
+acc +40
+jmp +244
+nop -63
+acc +25
+acc +16
+jmp -32
+acc -6
+acc +17
+jmp +298
+jmp +358
+acc +28
+jmp +1
+acc +27
+jmp +204
+jmp +4
+acc +17
+acc +47
+jmp +83
+acc -14
+jmp -42
+acc +0
+acc +14
+acc -9
+acc +13
+jmp +108
+acc +1
+acc -8
+acc +44
+jmp +420
+acc -1
+acc +24
+jmp +101
+acc -10
+nop +493
+nop +140
+acc -12
+jmp -134
+acc +21
+nop +385
+acc +38
+acc +4
+jmp +349
+jmp +225
+nop +432
+jmp +421
+acc +33
+acc +11
+jmp +462
+acc +21
+acc +11
+acc +5
+acc +15
+jmp +260
+nop +308
+acc -6
+acc -14
+acc -3
+jmp +178
+nop -33
+jmp +80
+acc +33
+acc -11
+acc +39
+jmp +145
+jmp +64
+acc +49
+acc +47
+acc +13
+jmp +331
+acc +1
+jmp -10
+acc +37
+nop +276
+jmp +259
+acc +16
+acc +38
+jmp +121
+acc +11
+nop +301
+acc +2
+jmp +94
+nop +186
+nop +255
+jmp -106
+nop -171
+acc +35
+acc -1
+acc +44
+jmp +129
+acc +27
+acc -6
+jmp -150
+acc +12
+acc +19
+acc +15
+jmp +247
+nop +309
+nop +429
+nop -131
+jmp +410
+jmp +187
+acc -4
+acc +45
+acc +3
+acc -16
+jmp -166
+acc +41
+jmp +276
+acc -2
+nop +23
+acc +11
+acc +19
+jmp +271
+acc +35
+jmp +136
+acc +46
+acc -9
+nop +189
+jmp +1
+jmp -201
+acc -11
+nop -190
+acc +9
+jmp +175
+acc +25
+acc +10
+acc -12
+jmp -50
+acc +44
+jmp +132
+acc -14
+jmp -71
+acc +47
+acc -9
+jmp -125
+jmp +1
+acc -5
+acc +47
+jmp +184
+nop -26
+jmp -48
+acc +24
+acc +33
+acc +38
+jmp +246
+acc +38
+nop -114
+nop +42
+nop +131
+jmp +256
+acc +48
+nop -126
+acc +20
+jmp +189
+acc +39
+nop +206
+acc +2
+acc +8
+jmp +279
+acc +31
+acc +8
+acc -14
+jmp +221
+acc -14
+acc +4
+jmp +161
+jmp +188
+acc +13
+acc +50
+acc -10
+acc +42
+jmp -169
+acc +25
+jmp +292
+acc +40
+jmp +53
+acc -1
+acc +29
+acc +20
+jmp -240
+jmp +4
+acc +28
+acc -9
+jmp -158
+jmp +305
+acc +47
+nop -250
+nop -155
+jmp +321
+acc +24
+acc +48
+acc +41
+acc -2
+jmp -61
+acc +40
+jmp +1
+jmp -209
+jmp +231
+acc +28
+acc +13
+jmp +45
+nop +147
+nop -35
+jmp -36
+acc +33
+acc +12
+acc +7
+jmp -62
+nop +1
+acc +3
+acc +18
+jmp +320
+acc +9
+acc -19
+acc -3
+acc +11
+jmp -151
+acc +11
+acc +31
+jmp -296
+acc -10
+acc +21
+jmp +104
+acc +46
+acc +22
+jmp +29
+jmp +1
+jmp +187
+acc -7
+acc +28
+acc +1
+acc +8
+jmp +74
+acc +45
+jmp +114
+acc +21
+nop -204
+jmp -327
+acc +5
+acc +36
+jmp -148
+jmp +285
+acc +2
+jmp +1
+jmp +197
+jmp +271
+nop +137
+nop +279
+acc +41
+jmp +1
+acc +43
+jmp +214
+nop -307
+jmp +245
+acc -13
+nop -210
+jmp +56
+acc -7
+acc +18
+acc +12
+jmp +88
+acc -18
+acc +32
+jmp +1
+jmp -199
+acc -9
+jmp -317
+acc -17
+acc +2
+nop +202
+acc +20
+jmp +227
+jmp -44
+jmp -28
+acc -9
+acc +12
+acc -10
+acc +3
+jmp -115
+acc +19
+acc +22
+jmp -340
+acc -7
+acc +7
+acc +32
+acc -11
+jmp -19
+acc +7
+jmp +1
+acc +14
+jmp -89
+acc +39
+jmp +75
+acc +32
+nop +215
+acc +40
+jmp +83
+jmp +204
+acc +1
+acc +29
+acc -2
+jmp +70
+acc -15
+acc -1
+nop -381
+jmp +27
+nop +65
+acc +40
+jmp -299
+acc +16
+acc +13
+jmp -24
+acc +26
+jmp -20
+acc +36
+acc +10
+nop -274
+jmp -394
+jmp +165
+acc +33
+acc -7
+jmp -419
+jmp -386
+nop -298
+nop -406
+jmp -108
+acc +10
+acc +46
+acc +0
+nop +50
+jmp -343
+jmp -5
+acc -8
+jmp -233
+acc +13
+acc +43
+jmp +87
+jmp +24
+acc +35
+nop -421
+acc +46
+jmp -35
+jmp -55
+acc +24
+acc +17
+acc -16
+acc +26
+jmp +128
+nop -11
+jmp +167
+acc +25
+acc +14
+nop -59
+jmp -108
+acc +50
+acc -18
+acc +45
+jmp -390
+acc -2
+acc +16
+jmp +123
+acc +41
+jmp -242
+nop -338
+acc -15
+acc +44
+jmp -227
+nop +159
+acc +10
+jmp -298
+jmp -338
+acc +10
+acc +9
+acc +24
+nop -173
+jmp -330
+nop -453
+acc +2
+jmp +1
+jmp -138
+acc +21
+acc +50
+jmp -451
+acc +19
+acc -7
+nop -454
+jmp +85
+acc -11
+acc +19
+jmp -394
+acc +27
+acc +4
+acc +42
+jmp -491
+acc +36
+acc +33
+acc -5
+acc +39
+jmp -425
+acc +46
+acc +10
+jmp -452
+acc -1
+acc +36
+jmp -339
+acc +26
+acc +24
+acc -8
+jmp -376
+acc +35
+jmp +1
+acc -4
+acc +24
+jmp -71
+acc +46
+acc -4
+acc -8
+jmp -289
+acc +11
+acc +32
+acc +32
+acc +26
+jmp -214
+acc +46
+nop -485
+acc +16
+jmp -287
+jmp -95
+acc +36
+nop -376
+acc -13
+jmp -406
+nop -278
+acc +22
+acc +21
+acc +33
+jmp -463
+jmp +11
+nop -346
+acc +33
+jmp -86
+acc -17
+nop -350
+nop +83
+jmp -299
+acc +31
+acc +28
+jmp -516
+acc -13
+acc +15
+acc -19
+jmp -338
+acc +21
+acc +10
+jmp -309
+jmp -473
+nop -150
+jmp +44
+acc +45
+acc +41
+acc +41
+nop -139
+jmp -448
+jmp +1
+jmp -103
+nop -433
+acc +1
+acc -1
+acc +0
+jmp -289
+jmp -531
+jmp -134
+acc +21
+acc +14
+jmp -51
+jmp -520
+jmp -275
+acc +6
+acc +42
+jmp -256
+acc +26
+acc +36
+jmp -17
+acc +11
+acc +32
+nop -244
+acc +42
+jmp -546
+jmp -565
+acc +31
+acc -12
+nop -496
+jmp -531
+acc +25
+nop -196
+acc -18
+acc +10
+jmp -22
+nop -231
+jmp -41
+jmp -555
+acc +37
+acc -14
+acc +43
+jmp -462
+acc -11
+acc +43
+acc +15
+jmp -229
+acc +0
+acc +20
+acc -18
+nop -3
+jmp -240
+acc +37
+jmp -520
+nop -424
+jmp +1
+jmp +1
+nop -158
+jmp -19
+acc +0
+nop -591
+acc +29
+nop -192
+jmp -24
+nop -55
+jmp -364
+acc +5
+acc +33
+jmp -176
+acc +25
+acc +6
+acc +21
+acc +16
+jmp +1
diff --git a/2020/08/solution.py b/2020/08/solution.py
new file mode 100644
index 0000000..47f912a
--- /dev/null
+++ b/2020/08/solution.py
@@ -0,0 +1,37 @@
+import time
+
+tag8 = open('input', 'r')
+
+tag8 = [x.strip() for x in tag8]
+
+print(tag8)
+
+acc = 0
+zeiger = 0
+
+besucht = list()
+
+print('=' * 10, ' start loop', '=' * 10)
+while True:
+    if zeiger in besucht:
+        break
+
+    zeile = tag8[zeiger]
+    besucht.append(zeiger)
+
+    instruction = zeile[0:3]
+    number = int(zeile[4:])
+    if instruction == 'jmp':
+        zeiger += number
+    else:
+        zeiger += 1
+    if instruction == 'acc':
+        acc += number
+
+    print(zeile, '\tacc:', acc, '\tzeiger:', zeiger, '\tbesucht:', besucht)
+    print()
+    time.sleep(0.3)
+
+print('=' * 10, ' end loop', '=' * 10)
+
+print('acc:', acc, '\tzeiger:', zeiger, '\tbesucht:', besucht)
diff --git a/2020/08/solution2.py b/2020/08/solution2.py
new file mode 100644
index 0000000..06d6500
--- /dev/null
+++ b/2020/08/solution2.py
@@ -0,0 +1,54 @@
+tag8 = open('input', 'r')
+
+tag8 = [x.strip() for x in tag8]
+
+
+def run_game():
+    acc = 0
+    zeiger = 0
+    besucht = list()
+    print('=' * 10, 'LOOP START', '=' * 10)
+    while zeiger < len(tag8):
+        if zeiger in besucht:
+            print('=' * 10, 'LOOP END. loop detected', '=' * 10)
+            return False
+
+        zeile = tag8[zeiger]
+        besucht.append(zeiger)
+
+        instruction = zeile[0:3]
+        number = int(zeile[4:])
+        if instruction == 'jmp':
+            zeiger += number
+        else:
+            zeiger += 1
+        if instruction == 'acc':
+            acc += number
+        print(zeile, 'zeiger', zeiger)
+    print('=' * 10, 'LOOP END. Terminated', '=' * 10)
+    return acc
+
+
+acc = False
+
+for zeilennummer, zeile in enumerate(tag8):
+    instruction = zeile[0:3]
+    rest = zeile[3:]
+    if instruction == 'nop':
+        tag8[zeilennummer] = 'jmp' + rest
+        acc = run_game()
+        if acc:
+            print(f'Success: Changed line {zeile} to jmp')
+            break
+        tag8[zeilennummer] = 'nop' + rest
+    elif instruction == 'jmp':
+        tag8[zeilennummer] = 'nop' + rest
+        acc = run_game()
+        if acc:
+            print(f'Success: Changed line {zeile} to nop')
+            break
+        tag8[zeilennummer] = 'jmp' + rest
+    print(f'Processed line {zeile}')
+
+
+print('Acc nach der Schleife:', acc)