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Chess puzzle I found in my dad's old book

▲ 227 points 72 comments by Eswo 2w ago HN discussion ↗

Pangram verdict · v3.3

We believe that this document is fully human-written

6 %

AI likelihood · overall

Human
100% human-written 0% AI-generated
SEGMENTS · HUMAN 1 of 1
SEGMENTS · AI 0 of 1
WORD COUNT 116
PEAK AI % 6% · §1
Analyzed
May 13
backend: pangram/v3.3
Segments scanned
1 windows
avg 116 words each
Distribution
100 / 0%
human / AI fraction
Verdict
Human
Pangram v3.3

Article text · 116 words · 1 segments analyzed

Human AI-generated
§1 Human · 6%

More than a hundred years ago, Kempelen, with his famous “Mechanical Chess Player,” not only defeated the strongest chess players who dared challenge him, but also liked to create chess problems that frustrated the greatest minds of the time. This is one of the most difficult among those problems.Game: The task is to place four black queens and one black bishop on the chessboard so that there is no square not under their attack. In other words, after arranging the five black pieces, it must be impossible to place the white king anywhere without it being in checkmate.

Drag or tap a piece, then choose a square. Tap or click a placed piece to remove it.