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Originally posted by aranya10I would be happy to test a hypothesis with you. We could repeat the game twice, move for move (unrated), you using first your laptop, then again using your iPad (or whatever device it was that refused to allow the 0-0). That should tell us whether the issue is machine related on your side (java script error or something like that). PM me if you wish to proceed. We can arrange to do this as a pair of blitz games some evening after my kid is in bed.
Any way, if this ever does happen again I will try the same move using my laptop.
My thanks to you all for coming to my aid.
EDIT: 0-0 was legal from that position.