Worst move puzzles

Normally, the goal of a puzzle is to find the best move(s) or a winning move. The puzzles on this page have the opposite goal: to find the only losing move.

Puzzle 1

By Eric Demer. Red to play the unique losing move.

(Of the 21 empty cells, 20 are winning moves for Red, and 1 is a losing move for Red.)

Try it on HexWorld.

Puzzle 2

By Hexanna. Red to play the unique losing move.

Try it on HexWorld.

Puzzle 3

By Selinger. Red to play the unique losing move.

This puzzle is much easier than puzzles 1 and 2.

Try it on HexWorld.

Puzzle 4

By Selinger. Red to play the unique losing move.

This one is also relatively easy.

Try it on HexWorld.