more rambling
Hey, good comments, here is some more rambling.
This is a good example showing that:
a) You can expect less experienced players’ bets to be all over the map.
It doesn’t mean, contrary to some people believing so, that it is easier (more beneficial) to play against good players because you know what to expect of them.
b) Novices often incorrectly bet exactly the whole lead or the amount that if won ties them with their closest opponent winning his maximum bet.
To recoup: BR1- 4,800 ... BR2- 2,000 ... BR3 (pt)- 500 and BR4- 400
BR1 best bet is <800 but >600.
BR2 is 100% guaranteed the second place- worth one sixth of the first place (assuming he is an average player amongst the second place takers) if he bets less than 500.
If BR2 bets more than 500 he increases his chances for the first place at the cost of decreasing chances for the second place. To weigh value of these two decisions we need to assume probabilities for BR1 betting: a) less than 600, b) more than 600 but less than 800 c) 1,200 to 1,300, d) more than 1,300.
(Sometimes it is easier to do the opposite – estimate value of play to determine a threshold percentage that your opponent needs to meet to warrant our play. More on it later in my message.)
BR2 making a small bet (guaranteed the second place and playing in additional round) has 1/6 (16.7%) of max reward (being in the final). Let’s say this play is worth 16.7 points.
If BR1 chooses option A (betting less than 600) - BR2 wins this tournament round only by getting a blackjack with a big bet out. However, the big bet reduces or eliminates chances of getting the second place if it is lost because BR3 and BR4 may push, or win their bets, or simply keep more money in the rack.
Now, let’s consider BR2’s betting 1,450 and 2,000.
It seems that BR2’s bet of 1,450 and keeping 550 in the rack is a good option. If BR2 gets a blackjack he would end up with more than 4,800 -so BR1 would need to win his hand to win the round. BR2’s bj gives him first place about 2.5% of the times (worth 2.5 points) and second place 2.2% (worth .37 points). BR2 wins his hand (but not with a blackjack) and takes second place about 39% of the times (worth 6.5 points), he pushes or loses his hand but BR3 and BR4 don’t overcome him about another 36% of the times (worth 6.0 points). The total value of this play (if BR1 bets less than 1,350) is 14.0 points.
If BR1 bets more than 1,350 than the situations is the same as above, except that BR2 wins the tournament round when he wins his hand and BR1 loses. This play is worth 22.7 points.
You have to estimate that BR1 will bet less than 1350 no more than 70 out of 100 times to make BR2’s bet of 1450 better than betting 500 or less and locking the second place.
Now, let’s do BR1’s 2,000 bet.
Blackjack gives him first place unless BR1 wins 1,200 or more, so does any other win if BR1 loses more than 800. However, it is almost certain that losing 2,000 drops BR2 below the second place. This play is worth 4.5 points if BR1 bets less than 600, about 3 points if BR1 bets more than 600 but less than 800, and slightly more than 12% even if BR1 bets more than 1,200. BR2’s 2,000 bet is worse than 500 bet regardless of what BR1 bets.
(There is a third option, mentioned in this thread, bet of 950. BR2 may still lose the second place by pushing or losing and BR3 or BR4 getting a blackjack. The upside is in swinging BR1 if he loses more than 1,850, or winning doubled bet and BR1 losing more than 900 with a danger of losing that doubled bet and almost certainty of losing the second place as well.)
Also, worth noting is that there is a conflict in choosing playing strategy. As BR1, you want to play more aggressively to swing BR1 to win the round but at the same time less aggressively to maintain the second place and not lose to BR3 or BR4.
S. Yama