 In the Journal des <unk> 1685 ( <unk> ) , p . 314 there appear two problems concerning the probability each of two players may have of winning in a game of dice . Solutions were published in the Acta <unk> 1690 ( May ) , pp. 219 – 223 in the article Quaestiones <unk> de <unk> , cum <unk> <unk> de <unk> <unk> . In addition , Leibniz himself published a solution in the same journal on pages 387 @-@ 390 . 
