http://en.wikipedia.org/wiki/One_Outs
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This is not the Wiki summary: Tokuchi, the main character, is a high roller gambler. After Kojima, the star pinch hitter for the lycaons, beats Tokuchi by a technical win in One Outs he takes Tokuchi to Lycaons where a perilous contract is secretly wrought between the Tokuchi and the owner of the team. It is rife with logic, observation, and rule breaking.]
You can find One Outs for free on AnimeSeason because it is not licensed to my knowledge. Google searching doesn't block Anime Season the last time I checked. It may now though.