"In 1997, Prof. Andrey Andreev, a Bulgarian mathematician from the Institute of Mathematics and Informatics in Sofia, introduced Carolina Solitaire to mathematicians of the University of South Carolina. This reverse sowing game is a variant of Bulgarian Solitaire."@en . "Carolina Solitaire"@en . . . . "In 1997, Prof. Andrey Andreev, a Bulgarian mathematician from the Institute of Mathematics and Informatics in Sofia, introduced Carolina Solitaire to mathematicians of the University of South Carolina. This reverse sowing game is a variant of Bulgarian Solitaire."@en . .