Positional crush

A fairly nice positional crush in which pressure on a backward QNP pawn ties it down until its queen gets trapped.

       score  depth   nodes  time                score  depth   nodes  time

 g1f3      0      0       0    12          g8f6      0      0       0     0
 c2c4      0      0       0     5          g7g6      0      0       0     0
 b1c3      0      0       0     5          d7d5      0      0       0     0
 c4d5      0      0       0     4          f6d5      0      0       0     0
 d1b3      0      0       0    24          d5c3    -15      4   13932     1
 b2c3      0      0       0     6          b8c6     16      5   23405     3
 g2g3      0      0       0     9          f8g7     43      4    8716     1
 f1g2      0      0       0     4          e8g8     29      4   16420     1
 e1g1      0      0       0    17          a8b8     18      3    2816     1
 a2a4      0      0       0     9          c8e6     39      4   16040     1
 b3c2      0      0       0    23          e6d5     38      2     540     1
 c1b2      0      0       0     6          d8d7     35      4   15057     2
 d2d3      0      0       0    18          f8d8     29      4   14502     2
 c3c4      0      0       0    18          d5f3     32      4   15850     1
 g2f3      0      0       0     5          g7d4     24      4   12902     2
 f3g2      0      0       0    39          d7d6     16      4   19656     2
 f1d1      0      0       0    32          d6f6     22      4   19300     1
 b2d4      0      0       0    26          c6d4     19      4    8986     1
 c2a2      0      0       0    18          h7h6     19      4   19252     2
 a1b1      0      0       0     4          c7c6     10      4   20803     2
 b1b2      0      0       0    22          g8g7     18      4   18453     2
 d1b1      0      0       0     4          d8d7     15      4   21803     2
 g1f1      0      0       0    70          f6f5     21      4   17706     2
 a2a1      0      0       0    35          e7e5     20      4   20656     2
 a4a5      0      0       0    21          f7f6     28      4   19552     2
 a1a2      0      0       0    59          h6h5     29      3    4125     1
 b2b4      0      0       0     4          g7h7     22      4   15252     2
 b1b2      0      0       0    18          h7h6     23      3    5403     1
 a2b1      0      0       0     4          e5e4    -53      4   20546     1
 g2e4      0      0       0    28          f5h3   -127      5   55581     3
 f1g1      0      0       0     4          b7b6   -132      4   24857     2
 e4g2      0      0       0     6          h3f5   -128      3    3694     1
 a5b6      0      0       0    22          a7b6   -200      3   13644     1
 g2e4      0      0       0    65          f5g4   -143      4   28821     2
 f2f3      0      0       0    52          g4g5   -125      4   18739     1
 g1f2      0      0       0    36          f6f5    -70      4   19756     2
 f3f4      0      0       0    40          g5g4    -80      5   34640     2
 e4g2      0      0       0    30          h5h4   -195      4   36522     3
 e2e3      0      0       0    37          c6c5   -210      4   33321     2
 b4a4      0      0       0    41          h4g3   -209      4   32093     2
 h2g3      0      0       0     8          d4e6   -210      4   18333     1
 a4a3      0      0       0    55          d7d6   -171      4   22854     2
 b1c2      0      0       0    64          b8e8   -131      3    6939     1
 b2b1      0      0       0    23          b6b5   -250      4   28525     2
 c4b5      0      0       0    30          d6b6   -302      4   25790     2
 g2f3      0      0       0    13          g4h3   -649      4    9968     1
 b1h1      0      0       0    13          h3h1   -762      5   18572     1
 f3h1      0      0       0     5          e8e7   -812      5   21356     2
 c2c4      0      0       0    55          h6h7   -809      3    1937     1
 a3a6      0      0       0    22          b6a6   -929      3    1498     1
 b5a6      0      0       0     3          e6f8   -964      4    9550     1
 c4c5      0      0       0    15          e7f7  -1165      5   23466     2
 a6a7      0      0       0     7          f8e6  -1163      6   34104     2
 c5c8      0      0       0    13          f7a7  -1159      5   25415     1
 c8e6      0      0       0     7          a7c7  -1193      5   27906     2
 h1c6      0      0       0     9          h7h6  -1189      4    3121     1
 c6e8      0      0       0     5          c7g7  -1408      6   36911     2
 d3d4      0      0       0     9          h6h7  -1406      6   48197     2
 d4d5      0      0       0     4          g7b7  -1442      5   25861     1
 d5d6      0      0       0     3          b7b2  -1558      5   31333     2
 f2f3      0      0       0     4          b2b6  -1795      5   53708     3
 e6g6      0      0       0     6          h7h8  -1695      1      42     0
 e8f7      0      0       0     3          b6d6  -9997      2     246     0
 g6g8      0      0       0     4