Count
$$\gdef\game#1#2{\left\{#1 \,\middle|\, #2\right\}}$$
$$\gdef\impgame#1{\left\{#1 \,\middle|\, #1\right\}}$$
$$\gdef\star{\mathord{\ast}}$$
$$\gdef\up{\mathord{\uparrow}}$$
$$\gdef\down{\mathord{\downarrow}}$$
$$\gdef\doubleup{\mathord{\Uparrow}}$$
$$\gdef\doubledown{\mathord{\Downarrow}}$$
$$\gdef\tiny#1{\pmb{\boldsymbol{+}}_{#1}}$$
$$\gdef\miny#1{\pmb{\boldsymbol{-}}_{#1}}$$