Issue 6 (1978)
Total problems: 59 — Solved: 32, Partially solved: 2, Open: 25.
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The following problem numbers are missing from the official book: 6.27, 6.33, 6.40, 6.41, 6.50.
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
6.14
6.15
6.16
6.17
6.18
6.19
6.20
6.21
6.22
6.23
6.24
6.25
6.26
6.27 (missing)
6.28
6.29
6.30
6.31
6.32
6.33 (missing)
6.34
6.35
6.36
6.37
6.38
6.39
6.40 (missing)
6.41 (missing)
6.42
6.43
6.44
6.45
6.46
6.47
6.48
6.49
6.50 (missing)
6.51
6.52
6.53
6.54
6.55
6.56
6.57
6.58
6.59
6.60
6.61
6.62
6.63
6.64