ttt wrote:ronk wrote:ttt wrote:On using Eureka!/AIC notation.
01: (hp38=2)r67c5-(2)r9c56=(2)r9c7-(2)r1c7=(2)r1c56-(2=8)r2c6 => r3c5<>8
02: (hp25=6)r13c5-(6)r2c4=(6-2)r2c8=(2)r7c8 => r7c5<>2
ttt, how are those
hidden pairs?
I don’t know…
, I follow the name that
Steve used. I’m sorry if it’s not used here.
And thank you for translating my solution to NL notation.
PS. I noted “hp – hidden pair”, because someone PM to me ask about that.
ttt
Second go-around on this subject:
IMO, the use of the 'hp' label depends on one's conception of the pattern being used. They following were among the first, if not the first to regularly post 'hp-based' patterns in the more difficult puzzles: Steve K->David Bird->ttt->myself. Presently I see similar 'hp' use in the solutions of Aran here & a few more at Eureka. Of those, I believe only David Bird uses 'ahp'. ttt & I pretty-much use the label 'hp' the way Steve used it. So, IMO, one is on rather shakey ground, questioning the use of the label: First, someone like Steve K, the most clever manual solver I've ever seen, knew what he was doing and knew what he wanted to express and second, as long as the label reasonably allows the reader to understand/recognize the pattern, the way it is used and what is used is to a large extent discretionary.
In this particular situation, it just so happens that because of the 'internal' strong link being used, though in the reverse direction, I happen to prefer the use of 'als' because I happen to see this more as the als pattern. But that's just me. TTT prefers to use 'hp' and considering his solving skills & the fact that there's a good precedent for its use, IMO, he can use the 'hp' label in the way he prefers.
.