Solve each sudoku puzzle while scoring the correct number of runs each inning. Moving from left to right in a row, each cell represents the outcome of an at-bat and the inning ends when there are 3 outs.
Possible outcomes are BB, 1B, 2B, 3B, HR, K, L, O, F, G. Each size of puzzle uses a subset of these possibilities.
A BB, 1B, 2B, 3B, or HR works as expected. All runners advance 1 base on a 1B, 2 bases on a 2B, and score on 3B or HR. Only forced runners advance 1 base on a BB.
A strikeout (K), lineout (L), or generic out (O) all just add 1 out and don't impact any runners.
A flyout (F) adds 1 out. If it is not the 3rd out, then a runner on 3rd scores and a runner on 2nd advances to 3rd.
For simplicity, ground outs (G) clear the bases. The batter plus any runners are converted into outs.