Erratum

Because of an editing error, the Tuesday obituary for Institute Professor Emeritus Franco Modigliani misstated the day of the Nobel laureate’s passing. He died on Thursday, Sept. 25, not Friday, Sept. 26.

Because of an editing error, a Tuesday article about the new MIT Boston Winter Shuttle [“Daytime Shuttle to Start in December,” Sept. 30] misspelled the name of the Graduate Student Council president. His name is R. Erich Caulfield, not R. Eric Caulfield.

The solution to Tuesday’s Chessmate was incorrect. The correct solution is:

1. [...] Qd1+ 2. Kb2 Qc1#