String to fold:
XOXOOOOOXXXXOOOOXOOXXOOXOOXXOOOXXOOOOOXXRandom fold (* means dead end, backing up):
X
↑
X
↑
O X←X
↑ ↓ ↑
O O O
↑ ↓ ↑
O X←O O O X
↑ ↓ ↑ ↓ ↑ ↓
O X←O X O←X X O
↑ ↓ ↑ ↓ ↑ ↓
O←X O←O O X←O X
↑ ↓ ↑ ↓
O X O O
↑ ↓ ↑ ↓
O X O←O
↑ ↓
O←X
Record number of incidences: 5
Record-achieving fold sequence:
→↓←←↑←↑←↓←←↓←↑←←←↑→→→↑←↑→→↓↓→↑↑→↑→→↓↓←←