interesting postion

[jdart]

from a recent online game:

[D] 8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 39

The White and Black knights both attack two weak enemy pawns, and tie down the other opponent pieces. Black in particular can't move his Rook at all without dropping a pawn.

Since both sides have this positional problem (although Black's is a bit worse) the position is pretty even and in fact this game was drawn. But in general it may make sense to give a bonus for this kind of attack on weak pawns, even more than the normal outpost score.

--Jon

[beachknight]

14:
8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 1

Analysis by Stockfish PA_GTB DD 64:

39.Re2 Kf8 40.Re3 Nd7 41.Re1 Nf6 42.Re2 Nd7 43.b3 Nf6 44.Re3 Nd7 45.Re1 Nf6 46.Re2 Nd7 47.Re3 Nf6 48.Re1 Nd7 49.Rh1 Kg7 50.Rh5 Nf6 51.Rh2 Nd7 52.Rh1 Nf6 53.Rg1 Kf8 54.Re1 Nd7 55.Rh1 Kg7 56.Rh5 Nf6 57.Rh2 Nd7 58.Rh1 Nf6 59.Rg1 Kf8 60.Re1
+/= (0.54) Depth: 41/50 00:03:09 554MN, tb=541
(Chess Engines Testing, 22.01.2014)

[beachknight]

14:
8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 1

Analysis by Stockfish PA_GTB DD 64:

39.Re2 Kf8 40.Re3 Nd7 41.Re1 Nf6 42.Re2 Nd7 43.b3 Nf6 44.Re3 Nd7 45.Re1 Nf6 46.Re2 Nd7 47.Re3 Nf6 48.Re1 Nd7 49.Rh1 Kg7 50.Rh5 Nf6 51.Rh2 Nd7 52.Rh1 Nf6 53.Rg1 Kf8 54.Re1 Nd7 55.Rh1 Kg7 56.Rh5 Nf6 57.Rh2 Nd7 58.Rh1 Nf6 59.Rg1 Kf8 60.Re1
+/= (0.54) Depth: 43/50 00:06:11 1069MN, tb=875
(Chess Engines Testing, 22.01.2014)

[beachknight]

14:
8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 1

Analysis by Stockfish PA_GTB DD 64:

39.Re2 Kf8 40.Re3 Nd7 41.Re1 Nf6 42.Re2 Nd7 43.b3 Nf6 44.Re3 Nd7 45.Re1 Nf6 46.Re2 Nd7 47.Re3 Nf6 48.Re1 Nd7 49.Rh1
+/= (0.54) Depth: 44/50 00:12:14 2138MN, tb=1603
(Chess Engines Testing, 22.01.2014)

[beachknight]

14:
8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 1

Analysis by Stockfish PA_GTB DD 64:

39.Re2 Kf8 40.Re3 Nd7 41.Re1 Nf6 42.Re2 Nd7 43.b3 Nf6 44.Re3 Nd7 45.Re1 Nf6 46.Re2 Nd7 47.Re3 Nf6 48.Re1 Nd7 49.Rh1 Kg7 50.Rh5 Nf6 51.Rh2 Nd7 52.Rh1 Nf6 53.Rg1 Kf8 54.Re1 Nd7 55.Rh1 Kg7 56.Rh5 Nf6 57.Rh2 Nd7 58.Rh1 Nf6 59.Rg1 Kf8 60.Re1
+/= (0.54) Depth: 45/50 00:15:39 2737MN, tb=2310
(Chess Engines Testing, 22.01.2014)

[beachknight]

14:
8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 1

Analysis by Stockfish PA_GTB DD 64:

39.Re2 Kf8 40.Re3 Nd7 41.Re1 Nf6 42.Re2 Nd7 43.b3 Nf6 44.Re3 Nd7 45.Re1 Nf6 46.Re2 Nd7 47.Re3 Nf6 48.Re1 Nd7 49.Rh1 Kg7 50.Rh5 Nf6 51.Rh2 Nd7 52.Rh1 Nf6 53.Rg1 Kf8 54.Re1 Nd7 55.Rh1 Kg7 56.Rh5 Nf6 57.Rh2 Nd7 58.Rh1 Nf6 59.Rg1 Kf8 60.Re1
+/= (0.54) Depth: 46/50 00:21:22 3737MN, tb=3622
(Chess Engines Testing, 22.01.2014)

[beachknight]

14:
8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 1

Analysis by Stockfish PA_GTB DD 64:

39.Re2 Kf8 40.Re3 Nd7 41.Re1 Nf6 42.Re2 Nd7 43.b3 Nf6 44.Re3 Nd7 45.Re1 Nf6 46.Re2 Nd7 47.Re3 Nf6 48.Re1 Nd7 49.Rh1 Kg7 50.Rh2 Nf6 51.Ne3 Ra8 52.Nc4 Ra6 53.Ne3 Ra8 54.Nc4 Ra6
+/= (0.54) Depth: 47/62 00:30:50 5360MN, tb=10213
(Chess Engines Testing, 22.01.2014)

[beachknight]

14:
8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 1

Analysis by Stockfish PA_GTB DD 64:

39.Re2 Kf8 40.Re3 Nd7 41.Re1 Nf6 42.Re2 Nd7 43.b3 Nf6 44.Re3 Nd7 45.Re1 Nf6 46.Re2 Nd7 47.Re3 Nf6 48.Re1 Nd7 49.Rh1 Kg7 50.Rh2 Nf6
+/= (0.54) Depth: 48/62 00:42:43 7480MN, tb=17399
(Chess Engines Testing, 22.01.2014)

[beachknight]

14:
8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 1

Analysis by Stockfish 180114IP 64:

39.Rd1 Kf8 40.Re1 Nd7 41.Re3 Nf6 42.Re2 Nd7 43.Re1 Nf6 44.b3 Ng8 45.Re3 Nf6 46.Re2 Ng8 47.Re1 Nf6 48.Re3 Ng8 49.Re2 Nf6 50.Re1
+/= (0.34) Depth: 34/43 00:00:15 45387kN
(Chess Engines Testing, 23.01.2014)

[beachknight]

14:
8/5pk1/r2p1n2/p1pP1Pp1/PpN3P1/5K2/1PPR4/8 w - - 0 1

Analysis by Stockfish 180114IP 64:

39.Rd1 Kf8 40.Re1 Nd7 41.Re3 Nf6 42.Re2 Nd7 43.Re1 Nf6 44.b3 Nd7 45.Re3 Nf6 46.Re2 Nd7 47.Re1 Nf6 48.Re3 Nd7 49.Re2 Nf6 50.Re1
= (0.30 --) Depth: 38/46 00:01:04 185MN
(Chess Engines Testing, 23.01.2014)