three o'clock Tuesday afternoon
It was the first time Billy had ever hinted to Arkwright , in words , that she understood what he was trying to do . `` I 'll come next Tuesday , '' promised Arkwright , with a cheerfully unobservant air . Then Bertram came in , bringing the book of Chess Problems , for which he had gone up-stairs . Promptly at three o'clock Tuesday afternoon Arkwright appeared at the Strata , and for the next hour Billy did her best to learn the names and the moves of the pretty little ivory men . But at the end of the hour she was almost ready to give up in despair . `` If there were n't so many kinds , and if they did n't all insist on doing something different , it would n't be so bad , '' she sighed . `` But how can you be expected to remember which goes diagonal , and which crisscross , and which ca n't go but one square , and which can skip ` way across the board , ` specially when that little pawn-thing can go straight ahead _ two _ squares sometimes , and the next minute only one -LRB- except when it takes things , and then it goes crooked one square -RRB- and when that tiresome little horse tries to go all ways at once , and can jump ` round and hurdle over _ anybody 's _ head , even the king 's -- how can you expect folks to remember ?