2-1 Tiles

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Rules[edit]

2-1 Tiles Example.png 2-1 Tiles Example Solution.png

Place tiles of 1x2 cells in the grid, with numbers 1 and 2 each. Tiles can be rotated but they cannot touch each other, even diagonally. Numbers outside the grid indicate the sum of all the numbers in the corresponding row/column.

(Rules and example from WPC 2012 IB)

History of the puzzle[edit]

First appeared on WPC 2012/Round 2 ("Blackjack", a 21-themed round) to commemorate the 21st World Puzzle Championship. Author of the puzzle is unknown.

Appearances in the past WPCs[edit]

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