Thursday, January 25, 2018

Season 11 division 1, openings after 1RR


The games of first two RRs of division one are played without book. Here are a few statistics after 1RR is over:

First move
18/28 (64%) start with d4
10/28 (36%) start with e4

By engine:

Andscacs: 2 d4, 2 e4
Booot: 3 d4 1 e4
Fizbo: 2 d4 1 e4
Gull: 1 d4 2 e4
Hannibal: 3 d4, 1 e4
Jonny: 3 d4
Laser: 4 d4
Nirvana: 3 e4

Jonny and Laser start with d4, Nirvana with e4. The other engines tried both options.

Opening by first ECO letter

A - 1 (3.6%), no English, Dutch or Reti
B - 3 (10.7%), all Caro-Kann, no Sicilian
C - 7 (25%), of which 6 are French Exchange, and one Giuoco Piano, no Ruy Lopez
D - 13 (46.4%), 9 of which are QGD variants.
E - 4 (14.3%), 3 of which are Nimzo-Indian

Decisive games openings

D47 Semi-Slav: Meran, Capablanca (black win)
D35 QGD: Exchange (one black win, one white win)
D37 QGD: Westphalia (white win)
D38 QGD: Ragozin (white win)
D00 Queen's Pawn: Mason Variation (white win)

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