1919Bridges1932

1.

2.

1.2. 3.4.12

13~4

1.1 23 4 5

2.1 2

1.2.3..4.5.126.7.8.9.

1.2.3.4.5..6.7.8.

1.74

18.3%22.9%315.5%421.5%551.9%

2.ThomasChess

1234