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Enumerating all 3-ply openings

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Avatar of PunchboxNET
PunchboxNET
Jun 27, 2021
0
#21

Also with e4 b5, a6 is blocked for the bishop

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PunchboxNET
Jun 27, 2021
0
#22

same for d4 g5

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Yigor
Jun 27, 2021
0
#23
PunchboxNET wrote:

Also with e4 b5, a6 is blocked for the bishop

 

Wow, nice remark! peshka.png I'll correct it. 😎

Avatar of Yigor
Yigor
Jun 27, 2021
0
#24

Done. Now we should calculate it for 1. a3 - 1. h3 as well as for 4 knight moves. settings.png

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PunchboxNET
Jun 27, 2021
0
#25

Ok not today

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Ilampozhil25
Jun 28, 2021
0
#26

e4 d5 nc3 and nc3 d5 e4 are counted as seperate, when they are not

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Yigor
Jun 28, 2021
0
#27
Ilampozhil25 wrote:

e4 d5 nc3 and nc3 d5 e4 are counted as seperate, when they are not

 

The question of transpositions will be settled later (cf. the first post). peshka.png

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PunchboxNET
Jun 29, 2021
0
#28

From 1. a3-h3 is 3598 moves

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Yigor
Jul 3, 2021
0
#29
PunchboxNET wrote:

From 1. a3-h3 is 3598 moves

 

All right, we will believe U. settings.pngpeshka.png

Avatar of Ilampozhil25
Ilampozhil25
Apr 25, 2023
0
#30

1.Nf3 xx is 5+1+14+2=22 x 20= 440

same for 1.Nc3

1.Nh3 xx is 3+1+14+2=20 x 2-= 400

same for 1.Na3

so 3744 + 3598 + 1680 = 9022 openings after 3 ply