Challenge magazine (New York, N.Y. Online)

3 to 66

25 to 57

3 to 66

53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 60 (1 to 6); 61 (1 to 5-6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 5-6); 65 (1-2, 3-4, 5-6); 66 (1-2, 3-4, 5-6)

Preserved : 4 (1 to 6); 5 (1, 3 to 6); 6 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 5); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (2 to 6); 53 (2 to 6); 54 (1 to 6); 55 (1, 3 to 6); 56 (1 to 6); 57 (1, 3 to 5); 58 (1 to 6); 59 (1 to 6); 61 (1 to 4, 5-6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 4, 5-6); 65 (1-2, 3-4, 5-6); 66 (1-2, 3-4, 5-6)

Preserved : 1954/1955: 3(1-12), 1955/1956: 4(1-12), 1956/1957: 5(1-12), 1957/1958: 6(1-12), 1958/1959: 7(1-10), 1959/1960: 8(1-10), 1960/1961: 9(1-10), 1961/1962: 10(1-10), 1962/1963: 11(1-10), 1963/1964: 12(1-10), 1964/1965: 13(1-5), 1965/1966: 14(1-6), 1966/1967: 15(1-6), 1973/1974: 16(1-6), 1974/1975: 17(1-6), 1975/1976: 18(1-6), 1976/1977: 19(1-6), 1977/1978: 20(1-6), 1978/1979: 21(1-6), 1979/1980: 22(1-6), 1980/1981: 23(1-6), 1981/1982: 24(1-6), 1982/1983: 25(1-6), 1983/1984: 26(1-6), 1984/1985: 27(1-6), 1985/1986: 28(1-6), 1986/1987: 29(1-6), 1987: 30(1-6), 1988: 31(1-6), 1989: 32(1-6), 1990: 33(1-6), 1991: 34(1-6), 1992: 35(1-6), 1993: 36(1-6), 1994: 37(1-6), 1995: 38(1-6), 1996: 39(1-6), 1997: 40(1-6), 1998: 41(1-6), 1999: 42(1-6), 2000: 43(1-6), 2001: 44(1-6), 2002: 45(1-6), 2003: 46(1-6), 2004: 47(1-6), 2005: 48(1-6), 2006: 49(1-6), 2007: 50(1-6), 2008: 51(1-6), 2009: 52(1-6), 2010: 53(1-6), 2011: 54(1-6), 2012: 55(1-6), 2013: 56(1-6), 2014: 57(1-6), 2015: 58(1-6), 2016: 59(1-6), 2017: 60(1-6), 2018: 61(1-6), 2019: 62(1-6), 2020: 63(1-6), 2021: 64(1-6), 2022: 65(1-6), 2023: 66(1-6)

Preserved : 2001: 44(1-6), 2002: 45(1-6), 2003: 46(1-6), 2004: 47(1-6), 2005: 48(1-6), 2006: 49(1-6), 2007: 50(1-6), 2008: 51(1-6), 2009: 52(1-6), 2010: 53(1-6), 2011: 54(1-6), 2012: 55(1-6), 2013: 56(1-6), 2014: 57(1-6)

Preserved : 3 (2 to 8, 9/10, 11/12); 4 (1 to 8, 9/10, 11/12); 5 (1 to 8, 9/10, 11/12); 6 (1 to 8, 9/10, 11/12); 7 (1 to 10); 8 (1 to 10); 9 (1 to 10); 10 (1 to 10); 11 (1 to 10); 12 (1 to 10); 13 (1 to 5); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 50 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 3, 5, 6); 59 (1, 3 to 6); 60 (1 to 6); 61 (1 to 4, 5-6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 4, 5-6); 65 (1-2, 3-4, 5-6); 66 (1-2, 3-4, 5-6)