00550nam a2200193Ia 4500 191130s2007##################000#0#eng## 9780007263707 ACL ACL 793.74 GOU Gould, Wayne Extreme su doku : the ultimate su doku challenge 2 Wayne Gould London HarperCollins Publishers 2007 xxxiii, 120 p. ; 23 cm Mathematical puzzles Sudoku 0316cf95ac10000c1d03141fb73fe5a4 389076 180588 180588 0 0 pbk 0 0 ACL ACL 6B 2020-10-13 0 793.74 GOU 486593 2020-10-13 00:00:00 2020-10-13 ENGLISH