A few small things to do once a day. The poker answers come from solvers I wrote and ran on the rack: a CFR+ equilibrium checked against every three-way combination of the 169 hand classes, with the pots that see a flop solved out to the river. Nothing to sign up for; streaks live in this browser.
Chess tactic
The Lichess puzzle of the day. Find the line; the board plays the other side.
Not yet todayFive spots
Solved postflop spots. Pick your action, then see what the solver does with your exact hand.
Not yet todaySpin & Go
Three-handed, 25 big blinds, winner takes all. Five preflop spots graded against the solved equilibrium.
Not yet todayPush or fold
Short-stack spots from my heads-up equilibrium solver. Shove, call or fold.
Not yet todayHidden hand
A hidden five-card hand. Seven guesses, rank and suit hints after each.
Not yet today