What is an edge slot in Plinko?

Odds of one specific edge slot:

RowsOne edgeEither edge
81 in 2561 in 128
121 in 4,0961 in 2,048
161 in 65,5361 in 32,768

Every extra row halves the chance. That's why operators put their largest multipliers on 16-row boards: the edges are hit so rarely that the casino can afford to advertise them.

Example. On 16 rows, the chance of at least one edge hit in 1,000 drops is about 3%. You'd need about 22,700 drops for a 50/50 chance.

In ProvablyHero tools

16-row odds · Chance of hitting 1000× · calculator

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