Andrzej Piotr Ruszczyński (born July 29, 1951) is a Polish-American applied mathematician, noted for his contributions to mathematical optimization, in particular, stochastic programming and risk-averse optimization.

[1] After graduating in 1974 with a master's degree from the Department of Electronics, Warsaw University of Technology, he joined the Institute of Automatic Control at this school.

[2] In 1992 the President of Poland, Lech Wałęsa, awarded Ruszczyński the state title of Professor.

In 1984-86 Ruszczyński was a visiting scholar at the Institute for Operations Research, University of Zurich.

In 1986-87 he was the vice-director of the Institute of Automatic Control, and in 1987-1990 he was the Vice-Dean of the Department of Electronics, Warsaw University of Technology.

[3] In 1992 Ruszczyński was a visiting professor at the Department of Operations Research, Princeton University, in 1992-96 he led the project Optimization under Uncertainty at the International Institute for Applied Systems Analysis, in 1996-97 he was a visiting professor at the Department of Industrial Engineering, University of Wisconsin-Madison, and since 1997 he has been with Rutgers University, where he holds a position of the Board of Governors Professor at the Rutgers Business School.

[4][5] Ruszczyński developed decomposition methods for stochastic programming problems, the theory of stochastic dominance constraints (jointly with Darinka Dentcheva), contributed to the theory of coherent, conditional, and dynamic risk measures (jointly with Alexander Shapiro), and created the theory of Markov risk measures.

[11] He was elected to the 2017 class of Fellows of the Institute for Operations Research and the Management Sciences.

[12] In 2018 Ruszczyński (jointly with A. Shapiro) received the Dantzig Prize[13][14] of the Society for Industrial and Applied Mathematics and the Mathematical Optimization Society.

In the two main variations, black Grimshaw interference on the square c3 is exploited with anticipatory shut-offs from a white half battery.

With Jan Rusinek, Ruszczyński co-authored the book: 64 Polish Chess Compositions.