Refactor Board::is_attacked_by() and Board::can_go()
treef801caa984bd4c4984b1f8ebef80bce57c628218
-rw-r--r-- 47 AUTHORS
-rw-r--r-- 35147 COPYING
-rw-r--r-- 459 INSTALL.md
-rw-r--r-- 283 Makefile
-rw-r--r-- 1364 NEWS
-rw-r--r-- 2760 README.md
-rw-r--r-- 1537 configure.mk
drwxr-xr-x - src
drwxr-xr-x - test