ANNOTATED GAME

Two Knights Defense - Pin it to win it
N.N (1523) vs. tisamon (1749)
Annotated by: tisamon (1835)
Chess opening: two knights defence (C58), Yankovich variation
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1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
The starting position of the thematic mini-tournament -> the Two Knights Defense, or perhaps more appropriately the Tchigorin Counterattack. This move is more aggressive than 3...Bc5 as it attacks e4 and provokes White to attack f7.

 
4. Ng5
White accepts the challenge, looking to win the pawn, but a complicated tactical game will likely ensue, where Black will try to wrest the initiative.

 
4... d5 5. exd5 Na5
Also possible are Nd4 and b5 which share related ideas. Black looks to take over by chasing away the bishop/knight and to take control over the center.

 
6. d3
A questionable move (but played by none other than Morphy) looking to hold the gambit pawn. Usually white plays 6.Bb5+ c6 7.dxc6 bxc6 8.Be2 h6

 
6... h6
The principled reply - pushing back with the intent of e4.

 
7. Nf3 e4 8. Nfd2
Another questionable move, but Black is controlling the game. 8.Qe2 Nxc4 9.dxc4 pinning the e-pawn, or perhaps 8.Ne5 may have been stronger.

 
8... Nxc4 9. dxc4
Stronger would have been 9.Nxc4 unblocking his queen from being attacked. (9.Nxc4 Bg4 10.Qd2 Qxd5 11.Nc3 Qc5 12. O-O O-O-O)

 
9... Bg4
I suspect that Bc5 or Bd6 may have been more thematic, but Bg4 certainly adds complications in attacking the kingside at f6.

 
10. f3 exf3 11. gxf3
If 11.Nxf3 then 11...Bc5 with the intent to exchange the light-squared bishop for the knight if taken to the task.

 
11... Bh5
Maintaining the pin on the weak f-pawn to the queen and striking into White's center.

 
12. Qe2+
Nc3 I suspect was more principled - the Queen check does very little at the moment as it is easily blocked, and it's always dangerous to align your Queen in front of the King.
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12... Be7
Simply blocking the check and allowing for castling.

 
13. Rg1
Black looks to take over the semi-open g-file, but I feel this may have been premature as the minors are hardly involved. The rook threat is mitigated through simply castling.

 
13... O-O 14. Nc3 Re8
Naturally opposing the Queen on the open file to the King.

 
15. Nde4
White looks to make gains in the center with a pair of connected knights. However, he is walking into a tactical minefield...

 
15... Nxe4
First we remove one of the knights...

 
16. Nxe4 Bc5
And now we have a puzzle-like position -> the f-pawn is pinned to the queen, the knight is pinned to the queen who is indirectly pinned to the king, and the rook is being attacked!

 
17. Be3
White looks to relieve some of the tension and block a pin, however the defender of the formerly pinned knight is also pinned, leaving 17...Rxe4 to continue the assault. 17.Rg3 f5 18.Nxc5 Rxe2+ 19.Kxe2 looks about best for White, but Black still holds the advantage.

 
17... Rxe4
So now... the f-pawn is pinned the queen, the bishop is pinned to the queen and the rook, and the queen is indirectly pinned to the king.

 
18. O-O-O
White gives up a piece to get his King to safety.

 

Pages: 12