![[gb]](/mwf/v12/flags/gb.png "United Kingdom")
I don't have the R4 book yet, but in the R3 book after the following moves of the Two Knights' Fritz variation
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Nd4
6. c3 b5
7. Bf1 Nxd5
8. cxd4 Qxg5
9. Bxb5+ Kd8
the book continues with
10. Qf3 exd4
11. Bc6 Nb4?
and the position is probably winning for White.
However, 11...Nf4 seems to equalize.
If White wins the exchange with 12. Bxa8 he has problems completing development.
Hence I suggest 10. 0-0 (rather than Qf3).
Black's best reply seems to be Rb8 or Bb7, and the resulting positions are certainly much better for White than after 11....Nf4!
r1bk1b1r/p1p2ppp/2B5/6q1/3p1n2/5Q2/PP1P1PPP/RNB1K2R w KQ-- - 2 11
Edit: Sorry, my FEN hasn't worked, although it pastes OK into CB10. :-(
.
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Nd4
6. c3 b5
7. Bf1 Nxd5
8. cxd4 Qxg5
9. Bxb5+ Kd8
the book continues with
10. Qf3 exd4
11. Bc6 Nb4?
and the position is probably winning for White.
However, 11...Nf4 seems to equalize.
If White wins the exchange with 12. Bxa8 he has problems completing development.
Hence I suggest 10. 0-0 (rather than Qf3).
Black's best reply seems to be Rb8 or Bb7, and the resulting positions are certainly much better for White than after 11....Nf4!
r1bk1b1r/p1p2ppp/2B5/6q1/3p1n2/5Q2/PP1P1PPP/RNB1K2R w KQ-- - 2 11
Edit: Sorry, my FEN hasn't worked, although it pastes OK into CB10. :-(
.
![[de]](/mwf/v12/flags/de.png "Germany")
Jiris book recommends 10...Bb7, the exd line is not analysed but has 3 games with it.
MegaBase2009 has 14 games with 10. Qf3 exd4 and the score is +2 =4 -8
Black wins both games where 11....Nf4 is played.
So 10...exd4 and 11...Nf4 seem to refute 10. Qf3 as a winning try.
10...Bb7 in reply to 10. Qf3 allows White to transpose into the (allegedly) superior 10. 0-0 Bb7 11. Qf3 line.
(Any idea what's wrong with my FEN syntax?)
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Black wins both games where 11....Nf4 is played.
So 10...exd4 and 11...Nf4 seem to refute 10. Qf3 as a winning try.
10...Bb7 in reply to 10. Qf3 allows White to transpose into the (allegedly) superior 10. 0-0 Bb7 11. Qf3 line.
(Any idea what's wrong with my FEN syntax?)
.
![[us]](/mwf/v12/flags/us.png "United States")
10.O-O 65.0% success, 26.0% draws in hundreds of games
10.Qf3 56.7%, 22.8% draws in roughly the same number of games
O-O is definitely the move I would prefer here, though Qf3 is playable.
11...Nf4 has been seen seven times and scored an amazing six wins and one draw despite evaluating poorly. Probably statistical noise, but with no other analysis that's definitely the move I would play over 11...Nb4 which has 34.3% success and gets creamed with 12.Bxa8 Nc2 13.Kd1 Nxa1? 14.d3 with now 24% success. This line goes back to Playchess in 2002, by the way.
Black's 5...Nd4 is dubious. Stick with the conventional 5...Na5 or if you want to mix things up go with 5...b5 in hopes the bishop will take the bait (bad idea, better to retreat to Bf1).
10.Qf3 56.7%, 22.8% draws in roughly the same number of games
O-O is definitely the move I would prefer here, though Qf3 is playable.
11...Nf4 has been seen seven times and scored an amazing six wins and one draw despite evaluating poorly. Probably statistical noise, but with no other analysis that's definitely the move I would play over 11...Nb4 which has 34.3% success and gets creamed with 12.Bxa8 Nc2 13.Kd1 Nxa1? 14.d3 with now 24% success. This line goes back to Playchess in 2002, by the way.
Black's 5...Nd4 is dubious. Stick with the conventional 5...Na5 or if you want to mix things up go with 5...b5 in hopes the bishop will take the bait (bad idea, better to retreat to Bf1).
ThudanBlunder wrote
"(Any idea what's wrong with my FEN syntax?)"
The syntax is wrong, too many dashes.
The top line is your post, the bottom is from the GUI.
"r1bk1b1r/p1p2ppp/2B5/6q1/3p1n2/5Q2/PP1P1PPP/RNB1K2R w KQ-- - 2 11
Peter G
"(Any idea what's wrong with my FEN syntax?)"
The syntax is wrong, too many dashes.
The top line is your post, the bottom is from the GUI.
"r1bk1b1r/p1p2ppp/2B5/6q1/3p1n2/5Q2/PP1P1PPP/RNB1K2R w KQ-- - 2 11
r1bk1b1r/p1p2ppp/2B5/6q1/3p1n2/5Q2/PP1P1PPP/RNB1K2R w KQ - 0 1
"Peter G
"chessbase live" gives the following (see attached file)
And Dufek prefers 10. 0-0.
And Dufek prefers 10. 0-0.
Attachment: AFritz.jpg (654k)
Most of those 10. Qf3 games transpose into the 10. 0-0 line because Black usually replies 10...Bb7. Hence its flattering 50% score.
Rather, I think one should evaluate and compare after 10. Qf3 exd4 and/or after 11. Bc6 Nf4
.
Rather, I think one should evaluate and compare after 10. Qf3 exd4 and/or after 11. Bc6 Nf4
.
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