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Last Updated: May 6, 2015
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Heads or Tails
I first wrote about Heads or Tails in 2005 when Playtech introduced a game based on the toss of a coin. Ten years later SoftSwiss created another coin flipping game. Then, in 2019, I noticed another version by Evopolay. This page shall address all of them.
The player chooses heads or tails and then bets on 1, 2, or 3 flips.
The following table shows the probability of winning and expected return for the three available bets.
Playtech -- Return Table
The player makes a bet and then predicts the flip of a coin — a Bitcoin to be specific. Wins pays 198 for 100.
The following table shows the probability of winning and contribution to the return for both outcomes. Wins are expressed on a "for one" basis. The lower right cell shows a return of 99%. In other words, a house edge of 1%.
SoftSwiss/BGamin -- Return Table
Evoplay returns 1.96 for 1 on a win. It is easy to see this results in an expected return of 0.5 × 1.96 = 98%, or a 2% house edge.
Written by: Michael Shackleford