The 15th All Girls National Tournament was played last month in Chicago under the auspices of the Kasparov Chess Foundation (www.KasparovChessFoundation.org), the Renaissance Knights Chess Foundation (www.RKnights.org), and the US Chess Federation (www.USChess .org). There were 487 players in the six-round Swiss event. They were divided into six age groups: UU, U10, U12, U14, U16, and U18, with team championships in each age group. Of the 487, 10 were from Massachusetts and two from New Hampshire. Overall this group of 12 did very well. According to Jeremy Rosenholtz, father of player Sophia Rosenholtz, all 12 had plus scores. He also provided the overall win/loss/draw numbers for them: 44 wins, 18 losses, and 10 draws. Trophy winners were: U10: Kelsey Liu, 5.0 (4th place); Riya Kanury, 5.0 (10th place); U12: Sophia Rosenholtz, 4.5 (10th place); U14: Yue (Kerry) Huang, 4.5 (8th place); and Amy Lei, 4.0 (12th place). Other players from Massachusetts and New Hampshire were Isabella Lai, Maya Figelman, and Joey Cao, all 4.0; and Suhavi Tiruveedhula, Tianna Wang, Carah Su, and Saanvi Tiruveedhula, all 3.5.

New York players won four of the six age groups and four of the six team titles.

The Women’s World Championship between champion Tan Zhongyi and challenger Ju Wenjun is well underway in China. We will have more on this next week, but as of now, Ju Wenjun leads by a score of 3.5-1.5.

Coming events:May 20, Massachusetts Girls Challenge, Boylston CC, Cambridge, www.MassChess.org; May 26-28, Mass Open (State Championship), Marlborough, www.MassChess.org.

Recent results: Second Challenge, Russian School of Mathematics (32 players), Rated Section, 1st-2nd: Armaan Mehta, Ronin Banerjee, 4-0.

Answer to today’s problem: 1…Ng4+ 2.Kh3 Rh1+! 3.Bxh1 Rh2#

Chris Chase can be reached at BostonGlobeChessNotes@ gmail.com.