(;GM[1]FF[4]SZ[19]AP[SmartGo:3.0.1]CA[shift_jis]
GN[2017.11.11_Zero-Master_opening1]
C[Black: AGMaster
White: AGZero (40 Blocks)]MU[0];B[pd]LB[pd:A][qd:B]
C[When AGMaster plays against AGZero, it does not show the variety that it had before. As AG does not change within a version, I find it hard to accept that it apparently does not have the option to play moves that it played before in identical board positions. 

In the 'Master series', 60 games played against top pros in Dec 2016 to Jan 2017, Master could play the 3-4 point as it's first move in about 1/4 of the games when it had Black. Incidentally, AGKeJie also could play the 3-4 point in some of it's games. The fact that Master repeats the same opening every time in these games against AGZero bothers me and makes me question, is this truly the same version of AGMaster that played the Master series, and if so, what caused it to play the same opening every time in this series, when it was allowed to have variety in previous games with identical board positions?

The difference in calculated winning percentage between A and B should be extremely small and I would expect it to have little or no effect on the ultimate win-loss record. This set of games would be much more valuable if Master had been allowed to vary in it's choices for moves.  

Master B=7/29
AGKeJie B=14/55]
;W[dp];B[qp]LB[qp:A][pq:B]
C[AGMaster plays at A every time in this series, while in the Master series it could also play at B. To voice my doubts again, I feel uneasy that it is called the Master version, without any explanation for why it is not playing moves that AGMaster could play in identical positions.
 
If AGMaster had played a variety of moves, that would have produced a fuller demonstration of the qualities of AGZero, and would have made this set of games more valuable for the Go playing community. 

 If there was any human input that made a change in how AGMaster played the first few moves, I believe it should have been explained in the paper that Deepmind published. 

AGKeJie B=7/7
Master A=3/4
Master B=1/4]
;W[dd];B[np]LB[np:A][fq:B][oq:C][nq:D]
C[In the Master series, AGMaster could choose from A~D for Black's move, while in this series it played only at A. 

The later version AGKeJie could also play at A, but played more often at B. 
]
;W[qc]
C[This is a position in which AGZero and AGKeJie seem to agree. In it's self-play series, AGKeJie invaded at 6 in all 3 games with this board position. 
 My opinion is that AGKeJie could be an equal opponent for AGZero, and it is a misfortune for the Go playing community that Deepmind chose not to disclose any games between the two. ]
;B[qd];W[pc];B[nc]LB[pj:A]
C[In this position AGMaster plays at 9, a move that I can recognize as a 'favorite' of AGKeJie. B9 makes sense in this position, as Black wants to take sente and play at A, and B9 works well with that plan. 
AGMaster was never faced with this board position in the Master series, so that could be a reason for why there are no previous cases in which it played at 9. ]
;W[oc];B[od];W[nb];B[pj];W[fq]LB[np:A][qc:B]
C[In recent years , W14 has become a popular move for White when Black plays the shimari at A. Humans pros will play here without the 3-3 invasion at B, of course. 
 When it is said to be self-taught without human data, I find it suprising that AGZero is looking so similar to human players. To be honest, I had some doubts about the extent and validity of our human knowledge, and thought that an AI without any human input might come up with some completely new moves. 
 Apart from the 3-3 invasions such as B, I can see little difference in human opening theory and the way AGZero plays. ]
;B[gp]LB[qc:A][cc:B]
C[ Since no human players invaded at A, AGMaster has never been in this board position in the Master series, but Black's shoulder hit is a move with a strong AGMaster-like feeling to it.
 In it's self-play series, AGKeJie did have this board position, and it played here once out of 3 games, and at B twice.]
;W[lq]LB[cf:A][cc:B][dm:C]
C[This opening was repeated in every game in the Master-Zero game set in which AGZero had White. AGMaster finally shows some variety with it's next move, choosing A, B, or C. As one might guess from this opening, AGZero likes to grab territory, and Master will be forced into playing a big moyo game. Master got to win once in 10 games with Black. ]
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