Hello @kumsangir

I have played the same game as yours here : playstrategy.org/TAczxut5 and I think I understand what happens.
Because the match is a correspondence game, each step of the multi-capture sequence has to be confirmed.
So you have to play f4-h4, confirm your move, then play h4-h2 and confirm again.
Let me know if this was the reason, or if you see any error in the console of your browser.

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Yes, it's true that you have to confirm each individual stroke option separately.

Thanks for the advice.

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