Play free online — no downloads, no installs.
Peg Solitaire (also called Brainvita) is a classic free online board puzzle. The cross-shaped board starts full except for the centre hole. Jump one peg over an adjacent peg into the empty hole beyond, removing the peg you jumped — and keep going. Clear as many pegs as you can; the perfect finish is a single peg left in the very centre. Easy to learn, genuinely tricky to solve, and playable on phone or desktop with no download and no sign-up.
Work toward the centre and avoid stranding lone pegs on the arms of the cross, where nothing can reach them. Think a couple of jumps ahead — a move that clears a peg now can cut off the only route to another. Keeping the board symmetrical for as long as you can makes the endgame far easier.