Engine-assisted game vs Stockfish, move 28 discussion

[dh1]

fwiw,

Deep Rybka 4.1 SSE42 x64:
31 -0.28 28. ... Ra8 29.Bc4 Ra2 30.h3 Bc3 31.Kh2 Qc5 32.Qxd6 Qxd6 33.Rxd6 Re8
31 -0.23 28. ... Bc3 29.Bc4 e3 30.Rg1 Rce8 31.Rc1 Re7 32.Rc2 Re4 33.Rd1 Bd2
31 -0.13 28. ... Rcd8 29.g3 Bc3 30.Rc1 Ra8 31.Rfd1 Ra2 32.Bc4 e3 33.Qd3 Rd2
31 -0.10 28. ... Rc2 29.Bc4 Qc5 30.Qe6 Bd4 31.Rc1 Rd2 32.Bd5 Bc3 33.Qe7 Rc8
31 -0.09 28. ... Qc5 29.Bc4 Rcd8 30.Rg1 Qxd5 31.Rxd5 Bc3 32.g4 fxg4 33.Rxg4 Rf6
31 -0.07 28. ... e3 29.Qf3 Qe4 30.Rxd6 Rc2 31.h3 Rfc8 32.Rfd1 Bf8 33.Rd8 Qxf3

[negative is bad for black; so the best move found is: e3 ]

[richs]

Seems like the chess engines agree on e3, but they all have a different sequence of following moves.

Hopefully we will hear Mr. Barnes' thoughts before the poll opens.

[MooMoo2]

Originally Posted by richs

Hopefully we will hear Mr. Barnes' thoughts before the poll opens.

Did you mean "before the poll closes"? The poll is already open: http://www.mersenneforum.org/showthread.php?t=22108

Feel free to let me know if you need more time.

[LaurV]

Originally Posted by richs

Seems like the chess engines agree on e3

My one too, and here is a move I can not really understand, and I would not play for sure, in a real situation. Separating the pawns makes not much sense for me right now. But I played my variants against the engine, and they are all worse, so.... I voted e3.

I won't be able to play honest chess online anymore after these games, haha.... So fast we learn to be spoiled...

[gd_barnes]

My initial thought was Rc2. Although e3 looks interesting it's hard for me to stomach separating the pawns at this point. I'll put some more firepower at it by tomorrow night and will vote in the last few hours later Wednesday.

My feeling is that this is dead drawn no matter what we do. It's likely better to quickly force a draw and get on to something else.

[Xyzzy]

Originally Posted by gd_barnes

It's likely better to quickly force a draw and get on to something else.

We think this would be interesting:

White makes the first move.
Black then makes two moves.
White then moves twice.
Alternate double moves until game is over.

[LaurV]

Originally Posted by Xyzzy

We think this would be interesting:

White makes the first move.
Black then makes two moves.
White then moves twice.
Alternate double moves until game is over.

It sounds like fun, let's try it...
However this is much more than the "crazy chess" I proposed, practically this is a totally new game.

[The Carnivore]

We're down to two moves: Rc2 and e3.

Originally Posted by dh1

Deep Rybka 4.1 SSE42 x64:
31 -0.10 28. ... Rc2 29.Bc4 Qc5 30.Qe6 Bd4 31.Rc1 Rd2 32.Bd5 Bc3 33.Qe7 Rc8
31 -0.07 28. ... e3 29.Qf3 Qe4 30.Rxd6 Rc2 31.h3 Rfc8 32.Rfd1 Bf8 33.Rd8 Qxf3

[negative is bad for black; so the best move found is: e3 ]

Originally Posted by dh1

none of my Komodos go deep for multi variation >2 which I wanted since several moves are equally rated zero:
Komodo-10.3-64bit:
35 0.00 28. ... e3 29.Rd3 Qe4 30.Qxe4 fxe4 31.Rxe3 d5 32.Rd1 Rxf4 33.g3 d4
35 0.00 28. ... Rc2 29.Bc4 Qc5 30.Qxd6 Qxd6 31.Rxd6 Bc3 32.Rfd1 Re8 33.Rd8 Rxd8

Houdini 5:
48/102 -0.23 28. ... Rc2 29.Bc4 Qc5 30.Qe6 Bd4 31.Rc1 Rd2 32.Bd5 Qb5 33.Qxd6 Bg7
48/102 -0.08 28. ... e3 29.Qf3 Qe4 30.Rxd6 Rc2 31.h3 Rfc8 32.Rfd1 Bf8 33.Rd8 Qxf3

EngineDeepShredder13UCIx64:
51/83 0.00 28. ... e3 29.Qxd6 Qxd6 30.Rxd6 Rc2 31.Re1 Rfc8 32.Bd1 Rf2 33.g3 Bf8
51/83 0.00 28. ... Rc2 29.Bc4 Qc5 30.Qxd6 Qxd6 31.Rxd6 Bc3 32.h3 Re8 33.Rfd1 Rf2