Look at Yellow Mountain Imports. I've got the 0.8" reversible board and (importantly!!) the really nice double sided Yunzi stones with bowls. Not a cheap set, but a beautiful one! The real Yunzi stones are soooo much nicer than plastic melamine!
At 1:14 you talk about the ponnuki. I get your point about its value. But in this case, why can't B simply respond here with an atari above...forcing W to fill (in gote) or allowing B to take and then filling its after W moves elsewhere? If B takes, the ponnuki is destroyed. If W fills, is the ponnuki still as powerful? Kinda "thick", isn't it??
good thinking, the point is that white will never respond to the Atari, and the white stones are still quite strong, so in the beginning white played an invasion in a territory where they are weaker, and got out with amazing and light shape, while black got hardly any points, not to mention white has sente. if you think about it even after the Atari it's impossible to attack white, since it's thick and thus will help at other parts of the board I hope it's understandable, if not feel free to ask .D
If you atari and take, you spend two moves locally while white get two moves for free. The remaining white stone is still not dead. Atari and taking will give white more than 30 free points for sure.
It might surprise you to hear that I’ve seen Dan and professional players say the same or similar things after years invested and thousands of matches under their belt. This game has a seemingly infinite skill ceiling, the human mind is never going to solve Go, and that’s part of the beauty of it.