1. 78! is the only correct move. After that there are several ways how the game can continue. Since White has 6 tempi, but Black only 5, Black must first feed his opponent, so that eventually all kumalak, which were on the board, are won by White. If White plays 1. 67?, he will only have 4 tempi whereas Black again will have 5 tempi and thus one more than his opponent. For that reason all the kumalak will now be won by Black. Be careful not to lose a won game!
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