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.