Tactics: the right recapture

[Event "WYCC U14"]
[Site "Al Ain, UAE"]
[Date "2013.12.23"]
[White "Graif, William"]
[Black "Jadranko, Plenca"]
[Result "1-0"]
[ECO "C93"]
[Annotator "William Graif"]
[PlyCount "77"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 {I had never reached this position in
my life. I play the Scotch, and was only playing the Ruy Lopez to prevent him
from preparing against me with the Scotch.} a6 4. Ba4 {But here he took a
major detour from the plan. Clearly having prepared for a Scotch and surprised
to reach the Ruy, he wisely chose not to play his regular line of 4...d6.
Instead, he put us both in unfamiliar territory.} Nf6 (4... d6 5. c3 g6 6. d4
Bd7 7. d5 {Was our preparation}) 5. O-O Be7 6. Re1 b5 7. Bb3 {I knew enough
about this line to know he could have played 7...d5 for a Marshall, which I
knew less than nothing about.} d6 8. c3 O-O 9. d4 h6 {He was likely scared of
Ng5 after ...Re8, but he had better. This makes it impossible for him to meet
a future Ng3 with ...g6 because of the weakness of the h6 pawn.} ({Simply
chasing the bishop off the diagonal:} 9... Na5 10. Bc2 Re8) 10. Nbd2 {Credit to my Canadian coach, Edward Porper, for not only coming up with
the idea of playing the Ruy Lopez and convincing me to do it, but also to
briefly go over other lines in the Ruy in case he does something like he did
in the game. So I did know the idea of bringing the knight to g3, but was next
to clueless from there.} Re8 11. Nf1 Bf8 12. Ng3 Bd7 {The bishop likely
belongs on g4, however} (12... Bg4 13. d5 {would likely be needed} Na5 14. Bc2
{with a slight edge.}) 13. h3 {With a Karpov-esque knight manuever idea} (13.
Nf5 {Despite the natural-ness of the move, it isn't best} Bxf5 14. exf5 e4 15.
Nh4 d5 $11) 13... Na5 14. Bc2 Nc4 15. b3 Nb6 {Repositioning the
knight. Although an immediate ...c5 instead of ...Nc4 was probably better.} 16.
Nh2 c5 17. f4 {As good as this looks, Black does have something.} Qc7 18. Nf3
cxd4 (18... exd4 19. cxd4 c4 {With a slight edge for Black.}) 19. cxd4 Rac8 20.
Bd3 {Still an equal game.} exd4 $6 (20... Bc6 {which he played
next move, is correct:} 21. fxe5 dxe5 22. Nxe5 Rxe5 $1 {He must see this
exchange-sacrifice though;} 23. Bf4 $5 Nbd7 24. dxe5 Nxe5 25. Nf5 $14 {As
Black does have some solid compensation.}) 21. Bb2 $1 {He likely missed this
move, and expected the more obvious Nxd4, after which the position is once
again equal.} Bc6 22. Nxd4 $16 Bb7 23. Ndf5 Nbd7 24. Rc1 Qb6+ 25. Bd4 Rxc1 26.
Qxc1 Qc6 27. Qb2 Nc5 28. Bb1 d5 29. e5 (29. Rc1 {was the best move,
threatening b3-b4.}) 29... Nfe4 30. Re3 {Another inaccurate move
by me, but in my defense we were both well under 10 minutes.} (30. Nh5 {is
best, as ...g6 does not work:} g6 31. Bxe4 Nxe4 32. Rxe4 dxe4 33. Nf6+ $16 {
Although there is no chance I could calculate this in time pressure.}) 30...
Qd7 31. Bxe4 dxe4 $6 (31... Nxe4 $11) 32. Nxg7 $1 {Although I
did calculate this in time pressure.} Rd8 (32... Kxg7 33. e6+ $18) (32... Bxg7
33. Bxc5 $16) (32... Nd3 33. Nxe8 Nxb2 34. Nf6+ $18) 33. N7f5 Ne6 34. Nh5 Kh8
35. Nf6 Qxd4 36. Nxd4 Nxd4 37. Nxe4 Nf5 38. Re1 Rd4 39. Nd6 1-0