Arctic or Andes?

How confident dare you be?

📊 Statistics

All time
28
Started attempts
15
Completed
13
Abandoned
364
Answered pictures
Average final score
-311.7 points
Median final score
+54.0 points

🎯 Calibration

Do probabilities match reality?

Calibration compares the probability assigned to Peru with the fraction of those cases that actually turned out to be Peru. A well-calibrated 70% forecast should come true about 70% of the time.

47,8%
Average forecast
51,1%
Actual Peru rate
36,1%
Mean absolute error
0,230
Brier score (lower is better)
P(Peru) range N Avg. forecast Actual Peru Gap Visual
0–10% 65 0,9% 27,7% +26.8 pp
10–20% 38 15,3% 36,8% +21.5 pp
20–30% 37 25,4% 37,8% +12.4 pp
30–40% 32 34,8% 25,0% -9.8 pp
40–50% 18 43,6% 44,4% +0.9 pp
50–60% 21 53,4% 52,4% -1.0 pp
60–70% 26 63,9% 53,8% -10.0 pp
70–80% 37 74,5% 89,2% +14.7 pp
80–90% 30 84,1% 53,3% -30.8 pp
90–100% 60 97,8% 83,3% -14.5 pp

The table uses every answered picture, including abandoned quizzes. The forecast is always P(Peru); Greenland is simply 100% minus that value. “Gap” is actual minus forecast, measured in percentage points. With few observations in a bin, the number can be noisy.

🖼️ Pictures — easiest → hardest

Sorted by average probability assigned to the correct country
# Picture Country Shown Top choice correct Avg. P(correct) Avg. points
1 IMG20220715163646.jpg ❄️ Greenland 3 100,0% 99,3% +68,3
2 IMG20220719170615.jpg ❄️ Greenland 3 100,0% 95,2% +64,0
3 IMG20220713191251.jpg ❄️ Greenland 2 100,0% 92,5% +61,0
4 IMG20220714130536.jpg ❄️ Greenland 4 100,0% 88,4% +53,5
5 IMG20220719143742.jpg ❄️ Greenland 3 100,0% 86,1% +53,3
6 IMG20220717165747.jpg ❄️ Greenland 5 100,0% 84,2% +50,8
7 IMG20220719190038.jpg ❄️ Greenland 6 100,0% 84,2% +49,7
8 IMG20220717180443.jpg ❄️ Greenland 5 100,0% 83,2% +49,2
9 IMG20220713201654.jpg ❄️ Greenland 2 100,0% 83,0% +48,5
10 IMG20220713155958.jpg ❄️ Greenland 4 100,0% 82,0% +46,0
11 IMG20220724155033.jpg ❄️ Greenland 2 100,0% 81,0% +45,5
12 IMG20220719190651.jpg ❄️ Greenland 3 100,0% 80,3% +46,7
13 IMG20220724154257.jpg ❄️ Greenland 4 75,0% 79,3% +39,3
14 IMG20220714101100.jpg ❄️ Greenland 2 100,0% 79,0% +45,0
15 IMG20260903104819.jpg ⛰️ Peru 16 87,5% 77,6% +38,4
16 IMG20220717141857.jpg ❄️ Greenland 3 100,0% 77,4% +39,7
17 IMG20220724154439.jpg ❄️ Greenland 6 100,0% 76,4% +40,2
18 IMG20220715172303.jpg ❄️ Greenland 2 100,0% 75,0% +34,5
19 IMG20220719140409.jpg ❄️ Greenland 5 80,0% 74,9% +34,4
20 IMG20220723142653.jpg ❄️ Greenland 3 100,0% 74,7% +39,7
21 IMG20260913130126.jpg ⛰️ Peru 12 83,3% 74,4% +20,6
22 IMG20260902123859.jpg ⛰️ Peru 10 80,0% 74,1% -19,6
23 IMG20220714191237.jpg ❄️ Greenland 5 100,0% 73,9% +37,6
24 IMG20220716211425.jpg ❄️ Greenland 2 100,0% 73,2% +38,0
25 IMG20220726133427.jpg ❄️ Greenland 1 100,0% 73,0% +38,0
26 IMG20260903160123.jpg ⛰️ Peru 9 77,8% 72,7% +23,3
27 IMG20220717180452.jpg ❄️ Greenland 4 75,0% 71,5% +13,5
28 IMG20220717141545.jpg ❄️ Greenland 3 66,7% 70,8% +29,7
29 IMG20220722204453.jpg ❄️ Greenland 7 85,7% 70,1% +22,0
30 IMG20220727202742.jpg ❄️ Greenland 2 50,0% 69,7% +25,5
31 IMG20220719183809.jpg ❄️ Greenland 4 75,0% 68,8% +11,3
32 IMG20220719151859.jpg ❄️ Greenland 4 75,0% 67,9% +22,8
33 IMG20260902124052.jpg ⛰️ Peru 8 62,5% 67,5% +16,8
34 IMG20260903122928.jpg ⛰️ Peru 14 76,9% 67,5% +10,4
35 IMG20260830093054.jpg ⛰️ Peru 10 70,0% 67,0% +13,8
36 IMG20220716145904.jpg ❄️ Greenland 4 75,0% 65,9% +22,0
37 IMG_7842.jpg ⛰️ Peru 14 76,9% 65,9% -21,7
38 IMG20260917145409.jpg ⛰️ Peru 10 70,0% 64,8% +10,2
39 IMG20220727185650.jpg ❄️ Greenland 5 60,0% 64,1% -6,2
40 IMG_6031.jpg ⛰️ Peru 15 66,7% 62,1% -64,2
41 IMG20220716121947.jpg ❄️ Greenland 3 66,7% 61,3% +15,0
42 IMG20220719170606.jpg ❄️ Greenland 5 80,0% 59,1% +1,2
43 IMG20220723172625.jpg ❄️ Greenland 2 50,0% 58,8% -17,5
44 IMG20260917145400.jpg ⛰️ Peru 14 57,1% 58,8% -32,4
45 IMG20220719170611.jpg ❄️ Greenland 2 100,0% 58,5% +14,5
46 IMG20220714130541.jpg ❄️ Greenland 4 66,7% 58,4% +11,0
47 IMG20220716131851.jpg ❄️ Greenland 2 50,0% 57,7% -24,0
48 IMG20220719170008.jpg ❄️ Greenland 3 66,7% 57,2% -171,3
49 IMG20220717201942.jpg ❄️ Greenland 4 50,0% 56,7% -1,3
50 IMG20220719140413.jpg ❄️ Greenland 3 100,0% 54,1% +7,7
51 IMG20220715164744.jpg ❄️ Greenland 3 66,7% 54,0% -37,3
52 IMG20220713172036.jpg ❄️ Greenland 5 40,0% 53,7% -23,6
53 IMG20220724155635.jpg ❄️ Greenland 5 60,0% 53,6% -104,2
54 IMG20220717145354.jpg ❄️ Greenland 5 40,0% 53,6% -28,4
55 IMG20260918083811.jpg ⛰️ Peru 15 57,1% 51,6% -43,3
56 IMG20260918090445.jpg ⛰️ Peru 16 56,3% 50,4% -142,2
57 IMG20220715115343.jpg ❄️ Greenland 3 66,7% 49,8% -33,3
58 IMG20220714221040.jpg ❄️ Greenland 2 50,0% 47,3% -30,5
59 IMG20260918103901.jpg ⛰️ Peru 17 43,8% 47,0% -141,9
60 IMG20220719132339.jpg ❄️ Greenland 4 50,0% 46,3% -142,0
61 IMG_6023.jpg ⛰️ Peru 12 36,4% 40,7% -157,5
62 IMG20220724174731.jpg ❄️ Greenland 3 33,3% 39,9% -43,0
63 IMG20220717125359.jpg ❄️ Greenland 5 40,0% 38,1% -134,6
64 IMG20220720123329.jpg ❄️ Greenland 4 33,3% 35,1% -56,3
65 IMG20220725123423.jpg ❄️ Greenland 3 0,0% 14,8% -264,3
66 IMG20220713191303.jpg ❄️ Greenland 1 0,0% 0,1% -621,0

“Top choice correct” measures how often the participant’s most likely country was correct. “Avg. P(correct)” is the average probability participants assigned to the true country, which is often the most direct measure of how difficult a picture feels.