This movement has been derived from the basic Bowman-Ewing Mitchell movement. This is also known as the Super-Bowman Movement. Pre duplication of the boards, while not necessary, is desirable (see below). The movement is similar to the Web Mitchell in that the boards move in two directions. There is always a base set of tables equal to the number of rounds in the event, and tables are appended in pairs to this base. Therefore an odd base gives an odd number of rounds and will only work for an odd number of tables up to three times the number in the base. An even number in the base gives an even number of rounds and will only work for an even number of tables up to three times the number in the base.
The movement of the players is basically simple and Mitchell-like, with no player displacement. No sharing of boards is required except where the boards have not been duplicated. Any number of tables greater than the base and less than three times the base is catered for, particularly if the choice between an even or odd number of rounds is flexible (for example 12 or 13 rounds).
As an example, the following 6 table base movement expanded to 18 tables is illustrated. It is assumed that there is three sets of boards the same, having been pre duplicated.
The base is the set of A tables. Tables may be deleted from this movement in pairs, taking one from row B and one from row C, starting at the higher end. Therefore 6B and 6C are the first pair of tables to come out. The board sets on these tables must remain in play however, only they will now be on relay tables.
All N-S pairs remain stationary. Board sets A and C move down one table (from 2A to 1A to 6A etc.). Board set B moves up one table from 5B to 6B to 1B etc.).
All E-W pairs move up one table at each change but the word "up" needs some qualification.
E-W moves: 1A, 1B, 1C, 2C, 2B, 2A, 3A, etc. until all B and C pairs are eliminated, and then they move one table at a time through the base movement. Note that as this movement contains an even number of rounds, a skip is required after half the rounds. If tables 1B and 1C were the only appended tables then the movement would be 1A, 1B, 1C, 2A, 3A, etc.
The movement of the E-W pairs can be 1A, 1B, 1C, 2A, 2B, 2C, 3A, 3B, 3C etc., if so desired.
If only two sets if boards are available then sharing of boards between sections A and C is possible.
For example:
Set No: 1 2 3 4 5 6
A set: 1A 2A 3A 4A 5A 6A
1C 2C
B set: 2B R R R R 1B
Pre duplication may not be necessary with the above arrangement, as the tables in row A can make duplicate copies as they play the first round. Play would then start late in row B, particularly at 2B where there may not be a spare board to use. 1B can share with table 6A.
Of course, this movement is more likely to be used when the number of tables in the base is higher and the number of boards being played on each round is only 2. Sharing is then not so convenient. Where the number of tables in the B and C rows is large, it is possible for the players to set the hands and to skip the first round as far as play is concerned. Instead of a 13-table base, the 14-table is used and one round is not played.
