(;AB[aa][ba][ca][da][ea][fa][ga][ha][ib][jb][kc][lc][mb][ab][bb][cb][fb][gb][ac][gc][dc][dd][cd][cf][bg][dg][ff][fe][fd][gg][ig][ie][je][hd]AW[ad][cc][db][eb][ec][ed][ee][fc][gd][ge][hb][hc][ic][ia][ja][ka]GN[capture 16 still dies]GC[On 24 October 1996, I was sent the following diagram by Clive Hunt from Johannesburg ( hunt@iafrica.com) who told me that he was given it by Victor Chow, but does not know where Victor got it from. I said "The diagram looks vaguely familiar to me -- does anyone recognise it from one of the Classics?", and then, on 12 Jan 1999, I got the following information from Dimas Cabré i Chacón (godel_@_ibm.net) I have made a little research and I discovered that this position is a simplification of a Go problem in the classical book Gokyo Shumyo \[HF Note: Japanese original: in 1811 by Hayashi Gembi -- check out the section on Classical Go problems on my main Go page\]. In fact, in the original problem White (colors are reversed in the original problem) manages to capture 72 stones (not outright) and still is not able to make two eyes. I'm sending you an SGF file with its initial setup and with the main variation of the "solution". On 02/08/2000, I got a message from Jean-Pierre Vesinet , saying: In your excellent web page you attribute the following 16-point nakade problem to the classical book Gokyo Shumyo (1811). This beautiful problem is a century older: it is exactly the same (symmetry excepted) as the problem #74 of Igo-Hatsuyo-ron, written by Inoue Dosetsu Inseki in 1713. I checked in the Chinese version Fayanglun of the Hatsuyo-ron. It can be found on the Internet (without solutions, in GB codes) at http://www.xys.org/xys/ebooks/others/misc/fayanglun.txt {HF note to view this wonderful page, and many others in Chinese, Japanese, or Korean, you may like to use NJStar Communicator from NJStar, where you can find other useful resources, such as Wordprocessors (with built-in dictionaries!)} ] ;B[bc];W[bd];B[be];W[cc];B[cb];W[gb];B[fa];W[bc];B[bb];W[ab];B[ae];W[ca])