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Guestbook Forbidding chains
for absolute beginners

Archives : Proof of

09-11 09-12
(19->28 type)
09-14 09-18 09-19 09-20
(21->27 type)
09-22 09-24
(20->23 type)
09-26 09-28
(21->26 type)
09-29 09-30
(19->51 type)
10-01 10-02 10-03 10-04 10-05 10-06 10-07 10-08
10-09 10-11 10-12 10-14 10-15 10-17 10-18 10-20 10-21 10-22
10-28 10-29 10-30 10-31 11-01 11-02 11-03 11-04
11-06 11-08 11-09 11-10 11-11 11-12 11-13 11-14 11-15 11-17 11-18 11-22 11-25 11-26
11-27 11-30 12-02 12-03 12-05 12-06 New! 12-07 12-08 12-09 12-10 12-11 12-12 12-15 12-21
12-27 12-28 01-07 01-10

If you're interested in a proof that is not in the above list, please let me know it and I'll try to provide it.