Which is the lowest numbered statement which is true? Statement 201: "Statement 203 is true". Statement 202: "Statement 201 is true". Statement 203: "Statement 206 is false". Statement 204: "Statement 202 is false". Statement 205: "None of the statements 201, 202, 203 or 204 are true". Statement 206: "1 + 1 = 2".
, 2021
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puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.