Fix bug where second players first move was forced to match first player's
authorCarl Worth <cworth@cworth.org>
Sat, 20 Jun 2020 20:14:29 +0000 (13:14 -0700)
committerCarl Worth <cworth@cworth.org>
Sat, 20 Jun 2020 20:14:29 +0000 (13:14 -0700)
commitc6ffca52b75480ad51ff1907a990b02f64885476
tree9606097925d862681516383219e128a8747744fc
parente79802f7979a2b3162efb0968c223f527d354410
Fix bug where second players first move was forced to match first player's

When the last_two_moves array has only one entry in it, then index 0
is the last move, not two moves ago, so we don't actually want to look
at that.
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