ensure object identity when subtracting 0 or dividing by 1
ensure object identity when subtracting 0 or dividing by 1

thewhimer/gambit,jasperla/gambit,BeImprovised/gambit,acenode/gambit,BeImprovised/gambit,acenode/gambit,jasperla/gambit,BeImprovised/gambit,acenode/gambit,thewhimer/gambit,jasperla/gambit,thewhimer/gambit,thewhimer/gambit,jasperla/gambit,thewhimer/gambit,BeImprovised/gambit,acenode/gambit,thewhimer/gambit