Imagine you're playing games with your friends. Game theory is like a special way of thinking that helps you guess what your friends might do and decide what you should do to win or have the most fun. It's like a secret strategy guide for making smart choices in games and other situations where people make decisions together. Just like picking the right game to play, game theory helps you pick the best moves to have a great time!

Game theory has a few important parts that help us understand how people make decisions when they play games or work together. Here are the main components:

Players: These are the people or participants in the game. They make choices that affect the outcome.

Actions or Strategies: Players can choose different actions or strategies in a game. These are like the moves they make, such as sharing toys or picking a game to play.

Payoffs or Outcomes: Each action leads to a result, and players get something in return, like points or rewards. Payoffs show who's doing well in the game.

Rules: Every game has rules that explain what players can and can't do. These rules shape how the game is played and what choices are possible.

Information: Players need to know what's happening in the game and what choices others are making. Information helps them decide their own moves.

Interactions: Games involve players interacting with each other. The choices one player makes can affect what others choose to do.

Strategies and Equilibria: Strategies are plans or ways to play the game, while equilibria are points where everyone's choices match up in a balanced way.

Outcome Matrix: This is like a table showing all the possible choices players can make and what happens as a result.

Strategies

1. Cooperation:

  - Working together to achieve a common goal.

  - Example: Sharing toys with your friend to have fun together.

2. Defection:

  - Not cooperating and choosing what's best for yourself.

  - Example: Keeping all the cookies for yourself instead of sharing.

3. Tit for Tat:

  - Doing to others what they did to you in the previous round.

  - Example: If your friend shares toys, you share toys too.

4. Grim Trigger:

  - Cooperating as long as others cooperate, but if they defect, you never cooperate again.

  - Example: Sharing toys until your friend takes a toy without asking, then you stop sharing forever.

5. Win-Stay, Lose-Shift:

  - Repeating the same action if it worked before, but changing if it didn't.

  - Example: Playing the same game with your friend if you won last time, but switching if you lost.

6. Random:

  - Choosing actions randomly without a specific plan.

  - Example: Rolling a dice to decide how many candies to give to your friend.

7. Forgiving Tit for Tat:

  - Like "Tit for Tat," but forgiving and cooperating again after a single defection.

  - Example: Sharing toys even if your friend took one toy without asking once.

8. Pavlovian Strategy:

  - Doing the opposite of what your opponent did in the previous round.

  - Example: If your friend shared last time, you don't share this time.

9. Trigger Strategy:

  - Making a move when a specific condition is met.

  - Example: Sharing toys only if your friend asks nicely.

10. Gradual:

   - Starting with a small move and gradually making bigger moves.

   - Example: Sharing one toy today, two toys tomorrow, and so on.

11. All-or-Nothing:

  - Taking extreme actions with no middle ground.

  - Example: Either playing a game super seriously or not playing at all.

12. Collusion:

  - Secretly working with others to get an advantage.

  - Example: Teaming up with your friend to beat everyone else in a race.

13. Leader-Follower:

  - Letting someone else make the first move, then copying their actions.

  - Example: Letting your friend choose which game to play, then agreeing to their choice.

14. Minimax:

  - Picking the action that minimizes the maximum potential loss.

  - Example: Making sure your friend doesn't get more candies than you, even if you both end up with fewer candies.

15. Maximize Minimum Gain:

   - Choosing the action that guarantees the most benefit even if it's not the highest possible gain.

   - Example: Sharing your toys to ensure you and your friend both have a good time.

16. Nash Equilibrium:

   - When no player can improve their outcome by changing their strategy, considering others' choices.

   - Example: Both you and your friend choose a strategy where neither of you wants to change their choice.

17. Stackelberg Leadership:

   - One player acts as a leader by making their move first, influencing others' choices.

   - Example: You decide to play a game, and your friend follows your lead.

18. Cournot Competition:

   - Competing by setting quantities, not prices, to avoid direct conflict.

   - Example: You and your friend decide how many toys to share instead of arguing about who gets which toy.

19. Chicken Game:

   - Both players move towards a dangerous situation, and the one who "chickens out" first loses.

   - Example: Two bikes racing towards each other, and the one who swerves to avoid a collision is seen as less brave.

20. Auction Strategy:

   - Bidding in an auction to get the best deal without paying too much.

   - Example: Bidding on items at a garage sale to buy them at the lowest price possible.

21. Backward Induction:

  - Making decisions by thinking about what others will do in response to your actions.

  - Example: Choosing your move in a game by considering how your friend will react to it.

22. Dollar Auction:

  - A tricky game where players bid for a dollar bill, but both the highest bidder and the second-highest bidder have to pay their bids.

  - Example: You and your friend bid on a dollar bill, and even if you win, you might end up paying more than a dollar.

23. Chain Store Game:

  - Players decide whether to open a store based on whether other players are opening stores.

  - Example: You and your friend decide to sell lemonade; if your friend opens a stand, you might open one too.

24. Cooperative Game:

  - Players work together to achieve a common goal and share the rewards.

  - Example: Building a tower together with blocks and celebrating when it's finished.

25. Non-Cooperative Game:

  - Players make decisions independently without necessarily working together.

  - Example: Each person building their own sandcastle on the beach.

26. Zero-Sum Game:

  - A situation where one player's gain is exactly balanced by another player's loss.

  - Example: Sharing a pizza where the more slices you eat, the fewer slices your friend gets.

27. Positive-Sum Game:

  - A situation where players can all benefit and no one has to lose.

  - Example: Everyone contributing ingredients to make a bigger and better pizza together.

28. Negative-Sum Game:

  - A situation where players can all lose and no one benefits.

  - Example: A group of friends arguing over what game to play, leading to everyone feeling unhappy.

29. Mixed Strategy:

  - Using more than one strategy in a game and choosing each strategy with a certain probability.

  - Example: Sometimes sharing toys, sometimes not, depending on how you feel.

30. Simultaneous Move Game:

   - Players make their choices at the same time without knowing each other's choices.

   - Example: Both you and your friend secretly pick rock, paper, or scissors to play the game.

31. Stackelberg Duopoly:

  - One player, the leader, makes their move first, and the other player, the follower, reacts.

  - Example: You decide the price for your lemonade, and your friend adjusts their price based on your choice.

32. Best Response Strategy:

  - Choosing the action that responds best to what your opponent is doing.

  - Example: Changing your game strategy based on what your friend is doing to make sure you have an advantage.

33. Focal Point Strategy:

  - Picking an action that seems most likely to be chosen by others in a given situation.

  - Example: Deciding to meet your friend at the park because it's a well-known spot.

34. Volunteer's Dilemma:

  - A situation where one player's choice benefits everyone, but not everyone has to contribute.

  - Example: Cleaning up a messy room together, even if not everyone helps equally.

35. Chicken Dilemma:

  - Both players take actions that risk causing harm unless one "chickens out" first.

  - Example: Riding bikes toward each other and seeing who swerves first to avoid a collision.

36. War of Attrition:

  - Players compete by waiting as long as possible, and the one who gives up first loses.

  - Example: Waiting to see who gives up on a staring contest first.

37. Prisoner's Dilemma:

  - Two players must decide whether to cooperate or betray each other, with different outcomes based on their choices.

  - Example: You and your friend have to decide whether to share candies or keep them for yourselves.

38. Public Goods Game:

  - Players contribute to a shared resource, and everyone benefits from the total contributions.

  - Example: Collecting money from friends to buy supplies for a party, and everyone enjoys the party.

39. Chicken Flock:

  - Many players take part in a game of chicken, and the last one to swerve wins.

  - Example: A line of friends on bicycles playing the chicken game, seeing who swerves last.

40. Dictator Game:

   - One player has the power to decide how to divide resources, without input from others.

   - Example: Deciding to share your toys with your friend, giving them what you choose.

41. Tragedy of the Commons:

  - When individuals act in their own self-interest, it can harm the common good shared by all.

  - Example: People overfishing a lake, depleting the fish population and harming everyone's ability to fish.

42. Chain Reaction:

  - Players make decisions in sequence, and each decision affects the next player's choices.

  - Example: Each person in a line adds one word to a story, creating a fun and unexpected tale.

43. War Games:

  - Simulating scenarios to predict outcomes and make better decisions.

  - Example: Playing a strategy video game to practice planning and tactics.

44. Threat Strategy:

  - Making a threat to get what you want from others.

  - Example: Telling your friend you won't play with them unless they share their snacks.

45. Credible Commitment:

  - Making a promise that others believe you'll keep to influence their decisions.

  - Example: Telling your friend you'll share toys tomorrow if they share with you today.

46. Pure Strategy:

  - Choosing a single action without mixing other strategies.

  - Example: Always choosing "rock" in rock-paper-scissors.

47. Mixed Strategy Equilibrium:

  - When players use mixed strategies and no player has an incentive to change.

  - Example: In rock-paper-scissors, each choice has a 1/3 chance of winning, so all choices are equally good.

48. Iterated Prisoner's Dilemma:

  - Repeating the prisoner's dilemma game multiple times, influencing each other's choices.

  - Example: Sharing candy with your friend many times, hoping they'll also share in the future.

49. Negotiation:

  - Talking and making deals to reach an agreement that benefits everyone.

  - Example: Discussing with your friend which game to play and finding one you both like.

50. Self-Fulfilling Prophecy:

  - Believing something will happen and acting in a way that makes it come true.

  - Example: Expecting a fun day at the park, so you bring games and snacks to ensure it's fun.

51. Subgame Perfect Equilibrium:

  - A strategy that's the best for each player, not just in the whole game but in every part of the game.

  - Example: Planning every move in a game like chess to ensure you always have the best response.

52. Kingmaker Strategy:

  - Choosing a move that determines the winner between other players.

  - Example: In a game of tag, helping one friend catch another to decide who wins.

53. Dollar Voting:

  - Indicating preferences by spending money or resources.

  - Example: At a class party, using tokens to vote on which game to play.

54. Grim Strategy:

  - Continuing to make the same choice until the other player cooperates, even if it takes a while.

  - Example: Sharing toys only if your friend shares first, and sticking to it until they do.

55. Tacit Collusion:

  - Players indirectly cooperate without explicitly agreeing to do so.

  - Example: In a group project, everyone contributing equally without discussing it.

56. Beauty Contest:

  - Players choose a number, aiming to guess what other players will pick, rather than just their own preference.

  - Example: Guessing a number of candies your friends will choose in a jar, trying to get the closest.

57. Auctions:

  - Players bid to buy or sell something, using different strategies to get the best deal.

  - Example: Bidding on items on an online auction site to get them at a good price.

58. Information Asymmetry:

  - One player knows more than others, affecting their decisions.

  - Example: You know more about a game's rules than your friend, so you use that to your advantage.

59. Threat of Retaliation:

  - Warning others that if they don't cooperate, you'll respond in a way they won't like.

  - Example: Telling your friend that if they don't help with cleanup, you won't invite them to your next playdate.

60. Time Discounting:

  - Valuing immediate rewards more than future rewards.

  - Example: Choosing a smaller candy now instead of waiting for a bigger one later.

61. Behavioral Strategy:

  - Making choices based on how people typically behave rather than only on rational calculations.

  - Example: Predicting your friend's actions in a game based on how they usually play.

62. Grim-Trigger Strategy:

  - Cooperating at first, but if the other player defects, you permanently switch to defection.

  - Example: Sharing toys with your friend until they break one of your toys, then you stop sharing forever.

63. Stick-and-Carrot Strategy:

  - Using a mix of rewards (carrots) and punishments (sticks) to encourage cooperation.

  - Example: Offering to share treats if your friend helps you clean up your room.

64. Asymmetric Strategy:

  - Players use different strategies based on their roles or strengths.

  - Example: In a game where you're faster, running to tag your friend while they try to dodge.

65. Multi-Step Strategy:

  - Planning out moves for several turns ahead to achieve a long-term goal.

  - Example: In a board game, making moves to set up a winning position later.

66. Bounded Rationality:

  - Making decisions that are good enough instead of perfect due to limited information or time.

  - Example: Picking a toy quickly instead of thinking about all your choices for a long time.

67. Dynamic Game:

  - A game where players' strategies change over time as they react to each other's moves.

  - Example: Each round of a card game like Uno, where you adjust your strategy based on the cards others play.

68. Mixed-Motive Game:

  - A game where players' goals sometimes align and sometimes conflict.

  - Example: Working together with friends to build a sandcastle, but also wanting the best sandcastle in the end.

69. Counterstrategy:

  - A response chosen to counteract a known or predicted strategy of your opponent.

  - Example: Sharing toys because you know your friend will likely share back.

70. Quantal Response:

   - Adjusting your strategy based on the likelihood of other players' actions.

   - Example: Choosing rock, paper, or scissors with a higher probability if you've noticed your friend uses a certain move often.

71. Fairness Strategy:

  - Choosing actions that seem fair and just to everyone involved.

  - Example: Dividing a treat equally among friends so everyone gets the same amount.

72. Opportunistic Strategy:

  - Taking advantage of situations to benefit yourself, especially when others aren't expecting it.

  - Example: Taking the last piece of pizza when everyone's not looking.

73. Altruism:

  - Doing something that benefits others even if it doesn't directly benefit you.

  - Example: Helping your friend with their homework even though you're done with yours.

74. Time Pressure Strategy:

  - Making decisions quickly because there's not much time to think.

  - Example: Choosing a game to play fast before your playtime is over.

75. Minimax Regret Strategy:

  - Choosing the option that minimizes the maximum regret you might feel.

  - Example: Picking the candy flavor you like second-best when your favorite is not available.

76. Strategic Silence:

  - Not revealing your plans or preferences to avoid giving away information to others.

  - Example: Keeping your favorite game a secret so your friend can't prepare a strategy against you.

77. Nash Bargaining Solution:

  - Finding a fair compromise when two players have conflicting interests.

  - Example: Sharing a toy by letting each person play with it for a certain amount of time.

78. Fuzzy Strategy:

  - Using a flexible approach that's not fixed but adapts based on the situation.

  - Example: Playing a game and adjusting your strategy based on how well you're doing.

79. Simulation Strategy:

  - Trying out different choices in your mind to see how they might turn out.

  - Example: Imagining different outcomes of sharing your snack or not with your friend.

80. Adaptive Strategy:

   - Changing your approach based on what's happening in the game or situation.

   - Example: Changing your game plan if your friend suddenly starts playing more aggressively.

81. Joint Strategy:

  - Players make decisions together as a group to achieve a common goal.

  - Example: Collaborating with friends to create a group dance routine.

82. Competitive Strategy:

  - Choosing actions to outperform others and come out on top.

  - Example: Running faster than your friend in a race to win.

83. Non-Competitive Strategy:

  - Focusing on cooperation and mutual benefit rather than trying to beat others.

  - Example: Working together with your friend to solve a puzzle instead of competing against each other.

84. Networking Strategy:

  - Building relationships and alliances to gain advantages.

  - Example: Making friends with others in a board game club to learn new strategies.

85. Equality Strategy:

  - Making choices that ensure fairness and equal treatment for everyone.

  - Example: Taking turns being the leader in a game so everyone gets a chance.

86. Reverse Psychology:

  - Encouraging others to do the opposite of what you want by pretending to want something else.

  - Example: Telling your friend you don't want to play a certain game to make them more interested in playing it.

87. Hiding Information:

  - Keeping your choices or plans a secret to surprise others.

  - Example: Not telling your friend which game you want to play until you reveal it.

88. Exploitative Strategy:

  - Taking advantage of others' weaknesses or mistakes to benefit yourself.

  - Example: Using your friend's slow reactions to win a game where speed matters.

89. Groupthink:

  - Making decisions based on what everyone else in the group seems to want.

  - Example: Choosing a movie to watch based on what the majority of friends prefer.

90. Reverse Tit for Tat:

   - Doing the opposite of what the other player did in the previous round.

   - Example: If your friend shared their snack last time, you don't share yours this time.

91. Auction Strategy:

  - Bidding smartly in an auction to get the best deal.

  - Example: Bidding just enough to win a toy at an auction but not too much.

92. Sacrifice Strategy:

  - Giving up something valuable to gain a better outcome later.

  - Example: Trading your favorite trading card to your friend for a better one in the future.

93. Frenemy Strategy:

  - Acting friendly while secretly trying to outdo or defeat others.

  - Example: Pretending to be your friend's helper in a game while secretly aiming to win.

94. Honesty Strategy:

  - Always telling the truth and sticking to agreements.

  - Example: Admitting that you accidentally moved a game piece in the wrong direction.

95. Trust-Building Strategy:

  - Gradually building trust by cooperating and delivering on promises.

  - Example: Sharing toys regularly with a friend to show you're trustworthy.

96. Chaos Strategy:

  - Creating unpredictable situations to confuse opponents.

  - Example: In a game of tag, suddenly changing direction to surprise your friend.

97. Sucker's Payoff Strategy:

  - Being generous to gain a good reputation or make others feel guilty.

  - Example: Sharing your treats with your friend to make them feel bad if they don't share back.

98. Incentive Strategy:

  - Offering rewards to encourage specific behaviors from others.

  - Example: Promising to play your friend's favorite game if they help you with your chores.

99. Psychological Strategy:

  - Using emotions and psychology to influence others' decisions.

  - Example: Acting sad to make your friend share their snack with you.

100. Reflective Strategy:

   - Taking time to think and reflect before making a decision.

   - Example: Considering all the options before choosing which activity to do.

101. Self-Control Strategy:

  - Making decisions that help you achieve long-term goals rather than giving in to short-term desires.

  - Example: Saving some of your snack for later instead of eating it all now.

102. Cooperation with Punishment:

  - Players cooperate, but if someone doesn't cooperate, others can punish them.

  - Example: Sharing toys and agreeing that if someone doesn't share, they won't be invited to play next time.

103. Silent Bargaining:

  - Players silently communicate to reach an agreement without openly discussing it.

  - Example: You and your friend give each other knowing looks to decide who will go first in a game.

104. Contrarian Strategy:

  - Doing the opposite of what others expect to gain an advantage.

  - Example: Choosing a less popular game at the party to play and having more fun than you thought.

105. Emotion-Based Strategy:

  - Making decisions based on feelings rather than just logic.

  - Example: Choosing a game to play based on which one makes you feel happiest.

106. Parity Strategy:

  - Matching the actions or decisions of others to maintain balance.

  - Example: Eating the same amount of cake as your friend to keep things fair.

107. Quick Reaction Strategy:

  - Making fast decisions to catch others off-guard or take advantage of opportunities.

  - Example: Tagging your friend before they realize you've started the game.

108. Synergy Strategy:

  - Combining efforts to achieve a result that's greater than the sum of individual efforts.

  - Example: Building a fort with friends where each person's contribution makes it even better.

109. Short-Term Gain Strategy:

  - Focusing on immediate benefits rather than long-term consequences.

  - Example: Eating more candy now even though you know you'll feel sick later.

110. Compromise with Trade-offs:

   - Reaching an agreement by giving up some things in exchange for gaining others.

   - Example: Agreeing to play your friend's game today if they agree to play your game tomorrow.

111. Follow-the-Leader Strategy:

  - Mimicking the actions of a leader or someone you think is making good choices.

  - Example: Doing the same dance moves as your friend because they're a great dancer.

112. Reverse Reaction Strategy:

  - Choosing the opposite action of what others expect you to do.

  - Example: Sharing your snack when your friend expects you not to.

113. Spontaneity Strategy:

  - Making decisions on the spot without planning ahead.

  - Example: Choosing a game to play without overthinking it.

114. Mutual Benefit Strategy:

  - Making choices that help both you and others equally.

  - Example: Sharing toys so both you and your friend have a good time.

115. Peer Pressure Strategy:

  - Doing what others are doing to fit in or be accepted.

  - Example: Playing a game you're not interested in because your friends are playing it.

116. Patience Strategy:

  - Waiting for the right opportunity before making a decision.

  - Example: Holding onto your toy until your friend wants to trade for something you really want.

117. Self-Interest Strategy:

  - Making choices based on what benefits you the most.

  - Example: Choosing the biggest slice of cake because you really like cake.

118. Inclusion Strategy:

  - Making choices that involve everyone and make them feel part of the group.

  - Example: Letting everyone pick a game to play so no one feels left out.

119. Reciprocity Strategy:

  - Doing something for others with the expectation that they'll do something for you in return.

  - Example: Helping your friend with their chores hoping they'll help you later.

120. Freedom of Choice Strategy:

   - Making decisions based on what you genuinely want, without being influenced by others.

   - Example: Picking a game to play because it's your favorite, regardless of what your friend wants.

121. Priority Strategy:

  - Giving importance to your own interests over others' when making decisions.

  - Example: Choosing a game to play that you enjoy even if your friend prefers a different one.

122. Unpredictability Strategy:

  - Making unexpected choices to keep others guessing and create an element of surprise.

  - Example: Choosing a random game to play to make playtime more exciting.

123. Minimal Effort Strategy:

  - Choosing the action that requires the least effort.

  - Example: Doing the least amount of chores necessary to finish them quickly.

124. Controlled Reaction Strategy:

  - Purposefully choosing an action to provoke a specific response from others.

  - Example: Pretending to be sad to make your friend feel bad for you and share their snack.

125. Endgame Strategy:

  - Making choices with a long-term goal in mind, even if it means short-term sacrifices.

  - Example: Studying hard now to do well in a test and have more free time later.

126. Resource Allocation Strategy:

  - Distributing resources among different options based on priorities.

  - Example: Dividing your playtime between different games based on which ones you enjoy the most.

127. Concealment Strategy:

  - Keeping your intentions or choices hidden to prevent others from countering your plans.

  - Example: Keeping your strategy secret until the game starts to surprise your opponents.

128. Self-Imposed Rules Strategy:

  - Creating your own rules or restrictions to make the game more challenging or interesting.

  - Example: Deciding to hop on one foot while playing a game to add a fun twist.

129. Nonchalant Strategy:

  - Acting casual and indifferent to keep others from realizing your true intentions.

  - Example: Pretending you don't care about a particular game to lower your friend's guard.

130. Adaptive Cooperation Strategy:

   - Adjusting your level of cooperation based on how others are behaving.

   - Example: Sharing toys if your friend is playing nicely but not sharing if they're not.

131. Self-Awareness Strategy:

  - Making choices that reflect your own abilities and limitations.

  - Example: Choosing a game that you know you're good at to increase your chances of winning.

132. Environmental Strategy:

  - Adapting your choices based on the surroundings or context.

  - Example: Picking a game suitable for playing indoors on a rainy day.

133. Overconfidence Strategy:

  - Believing that you're better than others and making bold choices.

  - Example: Choosing a challenging game because you're confident in your skills.

134. Uniqueness Strategy:

  - Making choices that set you apart from others.

  - Example: Suggesting a creative and unique game idea for playtime.

135. Cultural Strategy:

  - Choosing actions that align with your cultural background and values.

  - Example: Playing traditional games from your culture during a cultural event.

136. Learning Strategy:

  - Trying out different choices to learn from the outcomes.

  - Example: Experimenting with different strategies in a game to see which one works best.

137. Counterintuitive Strategy:

  - Choosing an unexpected action to surprise opponents.

  - Example: Starting a game by taking a surprising initial move to confuse your friend.

138. Reverse Engineering Strategy:

  - Analyzing the best outcome and working backwards to make decisions.

  - Example: Deciding what to study based on what topics will be on the upcoming test.

139. Adaptation Strategy:

  - Changing your approach based on changes in the situation or environment.

  - Example: Switching to a different game if the weather suddenly changes.

140. The Golden Rule Strategy:

   - Making choices that you would want others to make for you.

   - Example: Sharing your snack with your friend because you'd like them to share with you.

141. Repetition Strategy:

  - Repeating the same choice over and over for consistency.

  - Example: Always choosing the same game to play during playtime.

142. Creative Deception Strategy:

  - Using creativity to trick opponents and gain an advantage.

  - Example: Creating a distraction to make your friend look away while you take a strategic move.

143. Communication Strategy:

  - Using words or signals to coordinate actions with others.

  - Example: Using hand signals to secretly communicate with your friend during a game.

144. Exploration Strategy:

  - Trying out new actions to see how they affect the outcome.

  - Example: Experimenting with different paths in a game to see which one leads to the best result.

145. Legacy Strategy:

  - Building on past choices to achieve a greater long-term goal.

  - Example: Choosing to study a particular subject in school to prepare for a future career.

146. Outsmarting Strategy:

  - Making decisions to outwit others and gain an advantage.

  - Example: Playing a game by anticipating your friend's moves and responding cleverly.

147. Momentum Strategy:

  - Building up a series of actions to gain an advantage.

  - Example: Winning multiple rounds in a game to build momentum and boost confidence.

148. Rule-Breaking Strategy:

  - Choosing actions that bend or break the rules to surprise others.

  - Example: Introducing a new rule during a game to change the dynamics and catch opponents off guard.

149. Adaptive Defiance Strategy:

  - Adapting your actions based on the behavior of opponents, especially if they're trying to control the game.

  - Example: Choosing a strategy that counters your friend's strategy, especially if they're trying to manipulate the game.

150. Whimsical Strategy:

   - Making choices based on personal feelings or preferences at the moment.

   - Example: Picking a game to play because it makes you feel happy right now.