9-13, 22-18, 10-14

[J_D_C_]

On this opening 9-13 22-18, 10-14 18-9, 5-14 26-22, 7-10? (kingsrow gives this as a loss, but the ACF site gives this as the main line of deffence instead of 6-9) it continues 22-17, 13-22 25-9, 6-13 29-25, 11-15 25-22, 8-11 23-19? (thats what kingsrow gives, but the play on the ACF site says 24-19)

Is the 7-10 defence worth studying as a deffence?

[Alex_Moiseyev]

7-10 loses.
alex

[Ingo_Zachos]

Pask in "The golden Dozen" gives
1. 9-13 22-18
2. 10-14 18x9
3. 5x14 26-22
4. 7-10 ? 22-17!
5. 13x22 25x9
6. 6x13 29-25
7. 11-15 25-22
8. 23-18 etc. as a winning attck, but says before ...extremely hard to beat crossboards."

[Ed Gilbert]

KingsRow also gives 23-18 as the winning attack at move 8. J_D_C_, is your message with 23-19 a typo?

-- Ed

[Alex_Moiseyev]

Some "trouble lovers" like Lowder and myself (and few in the past) played this occasionly under old 144 deck:

9-14 22-18 10-15 18-9 5-14 26-22 7-10? 22-18 the same !

Alex

[J_D_C_]

Yes, sorry Ed, 23-18 is what i ment to say kingsrow gives. My bad

[Macb]

Hello JDC,

The mail players knew that 7-10 lost in the nineties. In 2001 World Mail Qualifying championship 7-10 was played by Tommy Canning against me and the game went like this: 9-13 2218 1014 18-9 5-14 2622 7-10(loses) 2217 1322 25-9 6-13 2925
1115 2522 8-11 2318 1216 2723 1620 2419 1524 2819 2024 3026 3-7 1814
1017 2114 1-6 14-9 4-8 9-5 White Wins Tom Canning-Mac Banks

In the same tourney, I used the correct 6-9 defense against Nigel Proffitt and drew as such: 9-13 2218 1014 18-9 5-14 2622 6-9* 2218 7-10 2522 1-5 2925 3-7 2419
1115 1811 8-24 2819 1417 2114 1026 3122 7-10 2318 9-14 18-9 5-14
Drawn Mac Banks-Nigel Proffitt 2001 World Qual. Mail tourney

If I am playing this opening crossboard instead of by mail play I would use the 25-22 attack instead: Here is a draw by Kingsrow playing red against Alex on my ladder.

913 2218 1014 18-9 5-14 2522 1115 3025 6-9 2218 1522 2610 7-14
2522 2-7 2925 8-11 2218 7-10 2419 1317 1915 1026 31-6 1423
2718 1-10 1814 1017 2114 1216 1410 4-8 10-6 1620 6-1 8-12
1-6 1116 6-10 Drawn Kingsrow-Alex. Moiseyev Banks Master Ladder

JDC, I have much more play on this opening than what is shown in publish play so if you have any questions, please email me at mbanks36@hotmail.com and I will gladly show you any play you are interested in.

[rich beckwith]

J D C:

To clarify your original comment...I assume you are referring to the Cayton Compilation (under Classroom menu) when you say this site shows 7-10 as sound. The Cayton Compilation is several years old and is known now to contain a few flaws, certainly including the one you mentioned. Then again, most opening checker books usually do reveal flaws over time.