Mona  vs  David Priddy (USA)                  Jan 8 - Feb 6, 2001

   1. d1-b3 h3-e3   2. e1-g3 h5-f7   3. g1-g4 f7:b3   4. b8-e5 a7-c7
   5. b1:b3 a5:d8   6. f1-d3 h6:f8   7. c1:e3 h2-h5   8. c8-e6 h5-f7
   9. g8-g5 h7-e7  10. b3:f7 a6-c6  11. e8-g6 c7:f7  12. e3-f2 f8-f5
  13. d3-d5 f7-f4  14. e5-f6++

  David Priddy tied for first place in the 1998 e-mail tournament,
  and has been a finalist in other years as well.  He qualified for
  this year's final with a 6-1 record, including a win over Dave Dyer.

  Move by Move:

   1. d1-b3 h3-e3

      +-----------------+          +-----------------+
    8 | . B B B B B B . |        8 | . B B B B B B . |
    7 | W . . . . . . W |        7 | W . . . . . . W |
    6 | W . . . . . . W |        6 | W . . . . . . W |
    5 | W . . . . . . W |        5 | W . . . . . . W |
    4 | W . . . . . . W |        4 | W . . . . . . W |
    3 | W B . . . . . W |        3 | W B . . W . . . |
    2 | W . . . . . . W |        2 | W . . . . . . W |
    1 | . B B . B B B . |        1 | . B B . B B B . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

 ply value  best  principle variation (last 4-ply deleted)

 11   +152  e1-g3 h5-f7 g8-g5 a7-d7 g1-g4 a4-d4 b1-b4
 13   +159  e1-g3 a7-d4 b1-b4 h7-g6 b8-b5 h5-g4 f1-c4 h2-h5 c1:a3

 A note on Mona's minimax scores:

 There is a significant odd-even effect, so odd-ply values are likely
 optimistic (at least 50 points too high, so +50 should be interpreted
 as an equal position).  A score of about +150 usually indicates a
 small advantage, and +300 a clear advantage.

 In these games, Mona indicates a mate threat with a +2000 bonus, so
 a score of +4150 indicates a small positional advantage with a double
 threat to connect.  Only certain types of mate threats are detected
 statically, so there could be more in a given position.  Mona reserves
 0 (zero) for a draw and +32000 for a win.

   2. e1-g3 h5-f7

      +-----------------+          +-----------------+
    8 | . B B B B B B . |        8 | . B B B B B B . |
    7 | W . . . . . . W |        7 | W . . . . W . W |
    6 | W . . . . . . W |        6 | W . . . . . . W |
    5 | W . . . . . . W |        5 | W . . . . . . . |
    4 | W . . . . . . W |        4 | W . . . . . . W |
    3 | W B . . W . B . |        3 | W B . . W . B . |
    2 | W . . . . . . W |        2 | W . . . . . . W |
    1 | . B B . . B B . |        1 | . B B . . B B . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

 11   +130  g8-g5 h7-e7 g1-g4 a7-d7 b1-b4 a7-d7  ... 
 11   +160  g1-g4 h4-f6 d8:f6 h7-e7 b1-b4 h2-f2 c8-c6
 13   +141  g1-g4 a7-d7 b1-b4 h7-e7 b8-b5 e3-e6 f8:h6 h2-g1 h6:e6

   3. g1-g4 f7:b3

      +-----------------+          +-----------------+
    8 | . B B B B B B . |        8 | . B B B B B B . |
    7 | W . . . . W . W |        7 | W . . . . . . W |
    6 | W . . . . . . W |        6 | W . . . . . . W |
    5 | W . . . . . . . |        5 | W . . . . . . . |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W B . . W . B . |        3 | W W . . W . B . |
    2 | W . . . . . . W |        2 | W . . . . . . W |
    1 | . B B . . B . . |        1 | . B B . . B . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

 11   +248  b8-e5 a4-d4 b1:b3 d4:g4 f1-g2 h7-g6 f8-d6
 13   +233  b8-e5 a4-d4 b1:b3 d4:g4 f1-g2 h7-g6 f8-d6 h2-h5 g8-d5

   4. b8-e5 a7-c7

      +-----------------+          +-----------------+
    8 | . . B B B B B . |        8 | . . B B B B B . |
    7 | W . . . . . . W |        7 | . . W . . . . W |
    6 | W . . . . . . W |        6 | W . . . . . . W |
    5 | W . . . B . . . |        5 | W . . . B . . . |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W W . . W . B . |        3 | W W . . W . B . |
    2 | W . . . . . . W |        2 | W . . . . . . W |
    1 | . B B . . B . . |        1 | . B B . . B . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

 11   +319  b1:b3 h2-f2 f1-d3 h7-f7 g8-g5 h4-h2 d3-e4
 13   +306  b1:b3 h7-g6 f8:h6 h2-h5 g8-d5 h5:e8 e5-d4 a2-b2 h6:e3

   5. b1:b3 a5:d8

      +-----------------+          +-----------------+
    8 | . . B B B B B . |        8 | . . B W B B B . |
    7 | . . W . . . . W |        7 | . . W . . . . W |
    6 | W . . . . . . W |        6 | W . . . . . . W |
    5 | W . . . B . . . |        5 | . . . . B . . . |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W B . . W . B . |        3 | W B . . W . B . |
    2 | W . . . . . . W |        2 | W . . . . . . W |
    1 | . . B . . B . . |        1 | . . B . . B . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

 11   +328  g8-d5 a4-d4 g4:d4 d8:d5 c8-d7 a6-b7 g3:c7
 13   +302  g8-d5 a4-d4 f1-d3 d4:g4 g3:c7 d8:d5 d3:d5 g4-f3 c8-d7
 13   +321  f1-d3 a2-c2 c8:a6 a4-d4 g4:d4 h2-g1 d4-b4 h4-f4 a6-c4

   6. f1-d3 h6:f8

      +-----------------+          +-----------------+
    8 | . . B W B B B . |        8 | . . B W B W B . |
    7 | . . W . . . . W |        7 | . . W . . . . W |
    6 | W . . . . . . W |        6 | W . . . . . . . |
    5 | . . . . B . . . |        5 | . . . . B . . . |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W B . B W . B . |        3 | W B . B W . B . |
    2 | W . . . . . . W |        2 | W . . . . . . W |
    1 | . . B . . . . . |        1 | . . B . . . . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

 11   +517  c1:e3 f8-g7 g8-d5 d8:d5 d3:d5 h4-g5 e3:g5
 13   +516  c1:e3 h7-f7 b3:f7 f8-g7 f7:c7 h4-h6 c8-c6 d8-d6 g3-c3

   7. c1:e3 h2-h5

      +-----------------+          +-----------------+
    8 | . . B W B W B . |        8 | . . B W B W B . |
    7 | . . W . . . . W |        7 | . . W . . . . W |
    6 | W . . . . . . . |        6 | W . . . . . . . |
    5 | . . . . B . . . |        5 | . . . . B . . W |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W B . B B . B . |        3 | W B . B B . B . |
    2 | W . . . . . . W |        2 | W . . . . . . . |
    1 | . . . . . . . . |        1 | . . . . . . . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

 11   +582  c8-e6 a6-c6 g8-c4 c7:c4 e6-e2 f8-d6 g4:c4
 13  +2056  c8-e6 a6-c4 g8-g5 d8:g5 g4:c4 h5:e5 e3-d4 h4:d4 e8:e5

   8. c8-e6 h5-f7

      +-----------------+          +-----------------+
    8 | . . . W B W B . |        8 | . . . W B W B . |
    7 | . . W . . . . W |        7 | . . W . . W . W |
    6 | W . . . B . . . |        6 | W . . . B . . . |
    5 | . . . . B . . W |        5 | . . . . B . . . |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W B . B B . B . |        3 | W B . B B . B . |
    2 | W . . . . . . . |        2 | W . . . . . . . |
    1 | . . . . . . . . |        1 | . . . . . . . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

 11  +2383  g8-g5 a2-b2 e8-c6 a4-d4 g4:d4 f8-d6 d3-f5
 13  +2754  g8-g5 a2-b2 e8-c6 b2-d4 d3-f5 a3-c5 c6-f6 a4-e4 e6-h3

   9. g8-g5 h7-e7

      +-----------------+          +-----------------+
    8 | . . . W B W . . |        8 | . . . W B W . . |
    7 | . . W . . W . W |        7 | . . W . W W . . |
    6 | W . . . B . . . |        6 | W . . . B . . . |
    5 | . . . . B . B . |        5 | . . . . B . B . |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W B . B B . B . |        3 | W B . B B . B . |
    2 | W . . . . . . . |        2 | W . . . . . . . |
    1 | . . . . . . . . |        1 | . . . . . . . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

  9  +4323  b3:f7 c7:f7 e5-f6 d8-d6 d3-d5
 11 +32000  b3:f7 c7:f7 e8-c6 f8-f6 c6-d5 a3-c5 e3:e7

  10. b3:f7 a6-c6

      +-----------------+          +-----------------+
    8 | . . . W B W . . |        8 | . . . W B W . . |
    7 | . . W . W B . . |        7 | . . W . W B . . |
    6 | W . . . B . . . |        6 | . . W . B . . . |
    5 | . . . . B . B . |        5 | . . . . B . B . |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W . . B B . B . |        3 | W . . B B . B . |
    2 | W . . . . . . . |        2 | W . . . . . . . |
    1 | . . . . . . . . |        1 | . . . . . . . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

  7 +32000  e8-g6 c7:f7 e3-f2 f8-f5 d3-d5 a4-d4 f2:f5

  11. e8-g6 c7:f7

      +-----------------+          +-----------------+
    8 | . . . W . W . . |        8 | . . . W . W . . |
    7 | . . W . W B . . |        7 | . . . . W W . . |
    6 | . . W . B . B . |        6 | . . W . B . B . |
    5 | . . . . B . B . |        5 | . . . . B . B . |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W . . B B . B . |        3 | W . . B B . B . |
    2 | W . . . . . . . |        2 | W . . . . . . . |
    1 | . . . . . . . . |        1 | . . . . . . . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

  5 +32000  e3-f2 f8-f5 d3-d5 a4-d4 f2:f5

  12. e3-f2 f8-f5

      +-----------------+          +-----------------+
    8 | . . . W . W . . |        8 | . . . W . . . . |
    7 | . . . . W W . . |        7 | . . . . W W . . |
    6 | . . W . B . B . |        6 | . . W . B . B . |
    5 | . . . . B . B . |        5 | . . . . B W B . |
    4 | W . . . . . B W |        4 | W . . . . . B W |
    3 | W . . B . . B . |        3 | W . . B . . B . |
    2 | W . . . . B . . |        2 | W . . . . B . . |
    1 | . . . . . . . . |        1 | . . . . . . . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

  3 +32000  d3-d5 a4-d4 f2:f5

  13. d3-d5 f7-f4

      +-----------------+          +-----------------+
    8 | . . . W . . . . |        8 | . . . W . . . . |
    7 | . . . . W W . . |        7 | . . . . W . . . |
    6 | . . W . B . B . |        6 | . . W . B . B . |
    5 | . . . B B W B . |        5 | . . . B B W B . |
    4 | W . . . . . B W |        4 | W . . . . W B W |
    3 | W . . . . . B . |        3 | W . . . . . B . |
    2 | W . . . . B . . |        2 | W . . . . B . . |
    1 | . . . . . . . . |        1 | . . . . . . . . |
      +-----------------+          +-----------------+
        a b c d e f g h              a b c d e f g h  

  1 +32000  e5-f6

  14. e5-f6++

      +-----------------+
    8 | . . . W . . . . |
    7 | . . . . W . . . |
    6 | . . W . B B B . |
    5 | . . . B . W B . |
    4 | W . . . . W B W |
    3 | W . . . . . B . |
    2 | W . . . . B . . |
    1 | . . . . . . . . |
      +-----------------+
        a b c d e f g h