Peter's Criticism of Margaret (Dramatic Irony)
Peter voices his judgment upon finding out that Ivan is dating an older woman. He questions her sanity for dating someone much younger, despite himself doing the same thing. This is an example of dramatic irony that reinforces Peter's hypocrisy, especially given the fact that Margaret and Ivan's relationship is one of the healthiest in the novel.
Naomi's Financial Reliance on Peter (Situational Irony)
Naomi is portrayed as an intelligent and capable young woman who does what she needs to do in order to meet her basic needs. Nevertheless, she relies on Peter for money. This is an example of situational irony because some readers might expect Naomi to be a self-sufficient young woman.
Peter's Emotional Reliance on Sylvia (Situational Irony)
Although Peter assumes that Sylvia needs him for support (and she does indeed express her fondness for him), she in fact has the strength to walk away. She officially ended their relationship in the first place, often refuses his help, asserts her boundaries, and maintains better emotional clarity. This exemplifies situational irony because it subverts expectations.
Ivan's Self-Image as Emotionally Stable (Situational Irony)
Ivan sees himself as calmer and more reasonable than his older brother. However, when faced with pressure, Ivan's chess performance suffers, he spirals emotionally, and at one point he physically lashes out at Peter. This is an example of situational irony because Ivan expects himself not to lose control.
