Free & ad free N back / Quad N back website

[Thomas van Dam]

Check it out on neurocrush.com its freeeeeeeee no account needed & has the most settings of any dual n back game; you can do 4x4 grids, septa n back, penta n back, automatic speed notation, shape as playing cards or chess pieces anything you want 

Let me know if you miss anything ill build it and have it live in an hour.