resolve BestpathCount bug with PASS

[sensuikan1973]

resolve #1614

[sensuikan1973]

F5d6C3d3C4f4F6f3E6e7F7c5B6g6G5c6E8b5E3d2B3h4D7b4A5a4A3a6F2g4A7c7D8g3H6f1H5c8B8g8B7g7C2f8H8h7E1d1G2e2H3h1H2c1b1

great

[sensuikan1973]

oh...

[codecov-commenter]

Codecov Report

Merging #1615 (330a1ef) into main (78b3849) will decrease coverage by 0.05%.
Report is 1 commits behind head on main.
The diff coverage is 72.72%.

@@            Coverage Diff             @@
##             main    #1615      +/-   ##
==========================================
- Coverage   94.67%   94.62%   -0.05%     
==========================================
  Files          52       52              
  Lines        1503     1508       +5     
==========================================
+ Hits         1423     1427       +4     
- Misses         80       81       +1     

Flag	Coverage Δ
integration_test	70.82% <0.00%> (-0.31%)	⬇️
macos	92.90% <72.72%> (+2.08%)	⬆️
ubuntu	93.43% <72.72%> (-0.18%)	⬇️
widget_test	90.92% <72.72%> (+0.16%)	⬆️
windows	93.96% <72.72%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
lib/board/pedax_board.dart	97.56% <66.66%> (-0.83%)	⬇️
lib/engine/api/count_bestpath.dart	80.76% <75.00%> (-4.24%)	⬇️

... and 3 files with indirect coverage changes