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Schoolbook. 8x10 chess with the rook + knight and bishop + knight pieces added. (10x8, Cells: 80) [All Comments] [Add Comment or Rating]

💡📝Sam Trenholme wrote on Sun, Oct 11, 2009 04:10 PM UTC:

Right now, I’m researching for Black’s best reply to 1. c4. ChessV 0.9.0 likes these replies (12-ply analysis):

Move    PV
-----   ---
e5	73
Ng6	69
f6	40
c6	13
e6	10
d6	5

1. c4 e5 looks to be Black’s best reply, but 1. c4 e5 2. Bc2 is dangerous for black if not handled properly. Here are the win/lose/draw ratios for White after 1. c4 e5:

Opening moves   Win      Loss     Draw     Games played
--------------- -------- -------- -------- ---
1. c4 e5 2. d3  100%     0%       0%         3
1. c4 e5 2. Bc2 53.0997% 35.0404% 11.8598% 371
1. c4 e5 2. f3  48.2456% 37.7193% 14.0351% 114
1. c4 e5 2. h3  47.619%  44.7619% 7.61905% 105

Black’s win/loss/draw ratios to various replies to 2. Bc2:

Opening moves       Win      Loss     Draw     Games played
------------------- -------- -------- -------- ---
1. c4 e5 2. Bc2 a6  100%     0%       0%         2
1. c4 e5 2. Bc2 Cj6 100%     0%       0%         5
1. c4 e5 2. Bc2 Ch6 71.4286% 28.5714% 0%         7
1. c4 e5 2. Bc2 g6  58.2915% 31.1558% 10.5528% 199
1. c4 e5 2. Bc2 f6  50%      37.5%    12.5%     24
1. c4 e5 2. Bc2 Be7 48.3871% 38.7097% 12.9032%  62
1. c4 e5 2. Bc2 Ng6 42.3077% 44.2308% 13.4615%  52
1. c4 e5 2. Bc2 Ad6 26.3158% 47.3684% 26.3158%  19
1. c4 e5 2. Bc2 Ni6 0%       100%     0%         1

It looks like Black gets creamed here because Joker80 often does 2. ... g6 when 2. ... Ng6 appears to give much better results (Update: Further research shows Ng6 isn’t that great for Black: c4-e5-Bc2-Ng6 Win: 50.365% Loss: 39.4161% draw 10.219% Total 274)

More research has to be done, including looking for a reasonable Black reply to 2. f3.

As an aside, I get a lot more pretty mates when I have Joker80 play at 40-moves-in-4-seconds than when I use slower time controls.