The goal. Five puzzles a day, the same five for everyone. Each one starts at a team in one season and ends at the team in the red box. Work your way down: pick someone who played for the current team that season, then pick another team-season that player played for, and keep going until you arrive. Every step is a real pair of teammates in a real year.

Picking. The first puzzle of the day shows a short list at each step, and the lists grow with every puzzle until the fifth shows everyone. Crossed-out names are wrong turns that won't get you closer.

Changing your mind. Every name higher up the tree can be tapped. Tap a team, or a player you picked (marked ↩), to go back to that point. Tap a different player in any group to go back there and take them instead. Each step you undo costs 10 points and one move, and so does the switch; later puzzles multiply that like everything else. The cost shows when you hover.

Hints. The 💡 tells you how many names in the group get you closer, then crosses off wrong turns one at a time. It never names the answer, and it disappears when there's nothing left to narrow down. Each one costs 20 points.

Scoring. Reaching the target in par hops is worth 100, plus up to 20 for time left on the clock. You lose 20 for each hop over par, 20 for each hint, 15 for each wrong guess, and 10 each time you back up or swap. Any finish is worth at least 10. Later puzzles count for more: the first is ×1, then ×1.5, ×2, ×2.5 and ×3 for the fifth, so a perfect day is 1,200.

Scoring zero. Three wrong guesses, running out of moves, running out of time, or giving up.

Rosters come from the Lahman Baseball Database (SABR), licensed CC BY-SA 3.0. A player is on a team's roster for a season after 20 games there, and only well-known players are listed: 1,500 career games, three All-Star selections, or the Hall of Fame.