In file included from /in/Compile/check.cpp:7:
/in/sokoban.hpp:110:14: error: unused variable 'x2' [-Werror,-Wunused-variable]
    uint16_t x2 = pos2 / mapColumns;
             ^
1 error generated.
/in/Compile/Makefile:16: recipe for target 'main' failed
make: *** [main] Error 1