Ink in the Margin

Easy — logic-grid deduction puzzle

The scorer's card from the deciding game's last two minutes, naming Leandro, Coleman, Jericho and Obadiah, came out of the wash half faded.

The deciding game came down to its last two minutes, and the home side never fell behind. Four teammates, Leandro, Coleman, Jericho and Obadiah, each made one big play in that stretch, each at a different mark on the clock: first 2:00, then 1:30, then 1:00, and last 0:30. The scorer called the two in between, 1:30 and 1:00, the middle marks. The scorer's card noted the home side's lead at each play: 1, 2, 3 or 5 points. The visitors kept scoring too, so the lead went up and down. Beside some plays, the scorer also pencilled a margin note. It wasn't that play's own lead. It was the leads at the play just before and the play just after, added together. The first and last plays had only one neighbour, so their note was just that one lead. Then the card went through the wash. Piece the last two minutes back together.

Clues

1. The margin note beside the block said 3.
2. The three-pointer fell at one of the two middle marks, 1:30 or 1:00.
3. Only one of these was true: Leandro made the steal, or Coleman made the three-pointer.
4. Together, the leads at the three-pointer and at the free throws came to 4 points.
5. Coleman's play came with 2:00 or 1:30 left on the clock.
6. Either Obadiah took the free throws, or the home side led by 5 at Jericho's play, but not both.
7. The block came after the steal and before the three-pointer.

Play this puzzle

Read the clues, rule out what cannot be, and prove what must be. Every GRIDIGMA puzzle is verified by a solver that shows the reasoning behind each step, so a solution is never a guess.

All GRIDIGMA puzzles

Logic grid puzzles: how to solve them, with a worked example