Difference between revisions of "Worst move puzzles"

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(the last puzzle is too hard)
(Some copy-editing, numbered the puzzles, added HexWorld links.)
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Normally, the goal of a puzzle is to find a/the best move(s), or a/the winning/moves. ​ However, this puzzle is for the opposite:
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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.
  
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=== Puzzle 1 ===
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By Eric Demer. Red to play the unique losing move.
  
 
<hexboard size="5x5"
 
<hexboard size="5x5"
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   />
 
   />
  
Red to play the only _LOSING_ move.
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(Of the 21 empty cells, 20 are winning moves for Red, and 1 is a losing move for Red.)
  
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Try it on [https://hexworld.org/board/#5c1,d2b1d1e1 HexWorld].
  
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=== Puzzle 2 ===
  
(There are exactly 21 empty cells. ​ 20 of them are winning moves for Red, and 1 of them is a losing move for Red.)
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By Eric Demer. Red to play the unique losing move.
  
Here is another puzzle. Red to play the unique losing move.
 
 
<hexboard size="6x6"
 
<hexboard size="6x6"
 
   contents="R a5 d3 B d1 f4"
 
   contents="R a5 d3 B d1 f4"
 
   />
 
   />
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Try it on [https://hexworld.org/board/#6c1,a5f4d3d1 HexWorld].

Revision as of 14:47, 1 July 2023

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.

abcde12345

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

abcdef123456

Try it on HexWorld.