1Button's Bitgram is a clever color-based hybrid of Tetris and Bicolor, available on iOS

1Button may be known more recently for their platformers such as Mr Jump and Nekosan; however this library is one full of interesting minimalist puzzlers and Bitgram's score-chasing hybrid fits that mold well.

Bitgram plays like a mix of the developer's previous Bicolor concept of two colors and spatial challenges, and Tetris' shapes. Start a playthrough and your presented with a two-color design and four different colored shapes you can place on the grid.

Colors can't overlap, shapes can only be placed on the opposite color, and your game needs when you can't make many more moves. That simple ruleset allows for tricky dual-colored puzzles in Bitgram, as you plan steps ahead and strategically place shapes to make space for future moves, in your attempts for higher scores.

Bitgram can be downloaded free on the App Store; an in-app purchase lets you remove ads.