Chess: Women vs. Men Is There a Difference?
Did it seem odd to you that I wrote “women vs. men” instead of “men vs. women”? The normal writing convention puts “men” first. For an article about the gender imbalance in chess, I wanted to start by challenging some conventions.
There is an indisputable achievement gap between men and women in chess. Social scientists have studied this from many different angles to determine why male players dominate the top echelon of chess. Read on for a deep dive into some studies and what their conclusions mean for chess today.
What’s the Problem?
There’s a serious imbalance in the numbers of male vs. female chess players. Only 11% of FIDE-rated players are female, and the USCF is only slightly better at 13%. As you move into the upper ratings groups of chess, it gets even more skewed, with only 2% of FIDE grandmasters being women. In contrast, around 34% of US Mensa members are women. What is it about chess that makes it so male-dominated?
Study Says…
The IQ Myth
When I bring this topic up, the answer people give almost reflexively is “men have higher IQs than women.” This idea is the basis for ability distribution hypothesis. It’s much too simplistic. In the 2020 study, “Males and Females Have the Same Distribution of IQ Scores” by R.T. Warne, it’s empirically shown that while males have a more variable distribution of IQ scores at the top and bottom of the scale, the mean IQ is almost the same for men and women. Women are also represented at every point on the IQ spectrum—meaning there are women with very high IQ scores as well, whether they choose to become chess grandmasters or not.
Another aspect of the IQ myth is self-perception. Little girls internalize the belief that boys are more likely to be “very, very smart” around the age of six, when they are beginning formal education. (Bian, et al, 2017) While there are likely many reasons for the development of this stereotype, it affects the choices little girls make about what activities to pursue. If chess is perceived as a game for the “very, very smart,” many girls will not see it as something “for them.” Coincidentally, the age of six or seven is the prime age for kids to start chess.
You Can’t Argue with the Math
If ability to play world-class chess isn’t constrained by an innate ability difference, there are two additional hypotheses to look at. The participation rate hypothesis and the differential dropout hypothesis tell most of the story.
Participation rates for boys in chess are significantly higher than girls at the very beginning. Boys typically also enter competitive chess at a higher rating level, while girls will show up at club with less experience than enthusiasm. As shown in the 2020 data graphed below, boys already outnumber girls 3:1 in the prime time for learning chess, around age 7. It’s hard to argue that having a pool of talent twice the size will not affect how many stars emerge.
The differential dropout hypothesis has two effects on women reaching elite status in chess. One, most girls drop out before or during middle school and never reach higher rating levels. Two, women are dropping out well before the typical peak performance in their 30s. When the data is examined using both gender and age as covariables, we find that mean ratings are virtually identical when women and men reach their peak, around 1770 (Chassy 2023). In this case, the exit precedes the expertise.
Why Aren’t Girls and Women Playing the Long Game?
Let’s assume that a significant number of girls and women have the same individual innate ability to become chess grandmasters. Why do promising young women fall away from chess before elite competition? My teenage son says it’s because “women have better things to do,” but there are reasons why they might look for something better to do.
Bias
There is undeniably a bias in chess that favors boys and men. Bobby Fischer, one of the greatest American grandmasters of all time, famously said that women were “weak” and “stupid” when it came to chess. While his opinion softened later in life, the damaging bias persists.
Bias can also be more subtle. In the study “Checking gender bias: Parents and mentors perceive less chess potential in girls,” by Arnold, Bailey, Ma, Shahade, & Cimpian, the researchers examined bias among parents and mentors who otherwise seemed supportive of their chess kids. Parents and mentors rarely showed overt bias, but they were likely to take a girl’s chess ambitions less seriously due to a perception that girls have less potential. When their girls quit, they ascribed it to a lack of ability. (Arnold et al., 2024) When asked about rating ceilings, fully 90% of mentors and parents believed female youth players to have rating ceilings a full bracket lower than their male counterparts. If innate ability is similar, there’s no objective reason for this disconnect.
Hostile Playing Environment
One thing that often comes up in conversations with female chess players is the unpleasant playing environment for girls and women. “I played chess in elementary school, but I quit in middle school.” The reasons include poor treatment, harassment, and bullying from coaches and other players. Chess has had a reckoning in the last few years as women come forward with their stories of sexual harassment and even assault at chess events. Led by WGM Jennifer Shahade and others, this “#MeToo” movement in chess has revealed how pervasive this problem is.
Photo by Polina for Pexels
Bringing this behavior to light has sparked change. USCF has adopted SafePlay standards for all sanctioned events. All USCF-certified tournament directors are required to undergo training and ensure their events meet the same player-safety standards as all other youth sports. FIDE has also committed to changing the way it addresses complaints, including several high-profile disciplinary actions in the last few years. Players who harass others are facing suspensions and outright bans.
Unequal Opportunities and Resources
Think about your high school basketball teams. At my high school, the boys played in the main gym, which featured concessions, an updated scoreboard, extensive bleachers, and lighting. The girls played in the 1911 original gymnasium called “the girls’ gym.” Most people don’t think anything of these differences because fewer girls play basketball. Is it possible, however, that unequal resources are why fewer girls play basketball? Investing in the programs that develop girls in sports, including chess, increases both participation and performance.
GM Judit Polgár is the only woman to have broken into the top ten in overall rankings in history. Few parents would spend the time and make the choices necessary to train a Judit, however. Her chess-focused childhood is still seen as quite controversial. Magnus Carlsen was training chess 3-4 hours per day at age 10 and played in almost 300 tournaments from ages 10-12, including taking a year off from school. His childhood was described as “happy” and “normal” in the articles I found. We should be just as tolerant and accepting of the cultivation of female genius.
Well, What Do You Want Me to Do About It?
Countering the bias, conscious or not, that girls have less potential or interest in chess is the first step. As a parent or a coach, encourage girls who show an interest in chess to challenge themselves and work for those tournament wins. Provide the time and support they need to compete with the assumption that they have what it takes. Visualizing your girl at the final table at a chess tournament may feel new or uncomfortable, but once you “see” that success, it’s much more possible for her.
Recruit and encourage girls to play chess at the elementary level and beyond. Often, girls start with little knowledge of the game and can benefit from a focused effort to catch up with their male peers. Placing your players in matched cohorts (groups of equal skill and mixed genders) is shown to keep girls playing longer as well. In one study, a group of roughly 32,000 players was tracked over 9 years, and the percentage of girls overall fell from 18% to 11% during that time (Li, Glickman, & Chabris, 2025). However, players in matched cohorts progressed at roughly the same rate, and the participation rate among girls remained high.
Finally, it is up to all of us to create a safe and welcoming environment for all chess players. There should be no bullying, harassment, or favoritism. What adults dismiss as “teasing” at the elementary level often feels very uncomfortable for the person being “teased” and can lead to worse behavior in middle school. Start early and insist on a welcoming, inclusive experience for all chess players in the room. Set clear expectations that bullying and harassment will not be tolerated from anyone. We want girls who fall in love with the game to pursue it for as long as they want!
So...Is There a Difference?
The difference is not inherent to the players — the difference lies in how they experience the environment. It’s unlikely that there will be parity in numbers for men and women in chess anytime soon. Stuffing the pipeline full of young female players only works if they want to stick with it. The odds of the next world champion being a woman will be higher if more girls play chess for longer. For those who do fall in love with the game, we need to ensure the playing field is fair, safe, and welcoming.
Citations:
Lin Bian et al.,Gender stereotypes about intellectual ability emerge early and influence children’s interests.Science355,389-391(2017).DOI:10.1126/science.aah6524
Li, A., Glickman, M. E., & Chabris, C. F. (2025). Across the Board: Sex, Ratings, and Retention in Competitive Chess. CHANCE, 38(3), 11–19. https://doi.org/10.1080/09332480.2025.2560279
Chabris, C. F., & Glickman, M. E. (2006). Sex Differences in Intellectual Performance: Analysis of a Large Cohort of Competitive Chess Players. Psychological Science, 17(12), 1040–1046. https://doi.org/10.1111/j.1467-9280.2006.01828.x
Arnold SH, Bailey AH, Ma WJ, Shahade J, Cimpian A. Checking gender bias: Parents and mentors perceive less chess potential in girls. J Exp Psychol Gen. 2024 Jan;153(1):1-14. doi: 10.1037/xge0001466. Epub 2023 Oct 5. PMID: 37796575.
Chassy, Philippe. (2023). Gender Differences: The Chess Delusion. Journal of Expertise 2023. Vol. 6(1)
Warne RT. Males and Females Have the Same Distribution of IQ Scores. In: In the Know: Debunking 35 Myths about Human Intelligence. Cambridge University Press; 2020:239-246.
Frequently Asked Questions:
While women have been at the top tables of chess, there has not yet been a female World Champion. Objective data doesn't support the theory that women have lower ability, so what might be the cause? The most likely reason is the much lower participation rate of women in chess. When over 85% of the participants in a sport are men, it’s easy to see why women may not be represented at the top as often. Additionally, some very skilled players choose to pursue gendered titles, such as WGM, rather than open titles like GM, putting them on a different track to success.
There are two sets of titles in chess. The “open titles” are gender-neutral and open to anyone. There are also “women’s” titles, exclusive to women, that have slightly easier qualifications. For example, the FIDE rating thresholds for women’s titles are about 200 points lower than open titles. The argument for this is the consistent ratings differential between men and women, which starts very early. This approach does have its critics, however, as some players feel it perpetuates lower expectations for women. Some elite women have chosen to hold only open titles for this reason.
Chess is, without a doubt, a game played most often by males. Women and girls make up only 11-13% of active players. Boys often start chess at a young age and continue playing into adulthood, while fewer girls start playing and drop out at a much higher rate. Many chess clubs are trying to make chess more welcoming and appealing to girls through special events and membership drives, ensuring everyone who wants to play chess finds a place to thrive.
There is broad consensus that the greatest female player of all time is GM Judit Polgár. In December 1991, she attained the GM title at 15 years and 4 months, the youngest person to do so at the time. She was the world's top-rated female player from 1989 to 2015, with a peak ELO rating of 2735. Polgár reached 8th on the world rankings, the highest a woman has ever achieved. She retired in 2014 and currently works as a chess educator, commentator, and author. Netflix released a biographical film of her life, “Queen of Chess,” in February 2026 if you’d like to learn more about this chess prodigy!