Difference between revisions of "Piet Hein's puzzles"
From HexWiki
(→Puzzle 4: added missing instructions) |
(Converted to new hexboard diagrams) |
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| Line 5: | Line 5: | ||
Blue to play and win. | Blue to play and win. | ||
| − | + | <hexboard size="11x11" | |
| − | + | contents="R d1--d7 d9--d11 h6 h7 B c2 i4 h9 d8" | |
| − | + | /> | |
=== Puzzle 2 === | === Puzzle 2 === | ||
Blue to play and win. | Blue to play and win. | ||
| − | + | <hexboard size="3x3" | |
| − | + | contents="B a1 R a2 b3" | |
| − | + | /> | |
=== Puzzle 3 === | === Puzzle 3 === | ||
Blue to play and win. | Blue to play and win. | ||
| − | + | <hexboard size="6x6" | |
| − | + | contents="B b1 b5 R c3 d5 f3" | |
| − | + | /> | |
=== Puzzle 4 === | === Puzzle 4 === | ||
Blue to play and win. | Blue to play and win. | ||
| − | + | <hexboard size="4x4" | |
| − | + | contents="R a4 B c2 R d1" | |
| + | /> | ||
=== Puzzle 5 === | === Puzzle 5 === | ||
Blue to play and win. | Blue to play and win. | ||
| − | + | <hexboard size="4x4" | |
| − | + | contents="B a1 R a4" | |
| − | + | /> | |
=== Puzzle 6 === | === Puzzle 6 === | ||
| Line 44: | Line 45: | ||
Blue to play and win. | Blue to play and win. | ||
| − | < | + | <hexboard size="5x5" |
| − | + | contents="R a2 B a3 R b3 B c3 R b4 B a5" | |
| − | + | /> | |
| − | + | ||
| − | + | ||
== See also == | == See also == | ||
Latest revision as of 04:08, 18 December 2020
These are a few puzzles designed by Piet Hein. Their respective solutions can be found on Solutions to Piet Hein's puzzles.
Contents
Puzzles
Puzzle 1
Blue to play and win.
Puzzle 2
Blue to play and win.
Puzzle 3
Blue to play and win.
Puzzle 4
Blue to play and win.
Puzzle 5
Blue to play and win.
Puzzle 6
On the board of size 3 there are precisely two opening moves such that, with optimal play from both players, the board will be completely filled before the game is over. Which are the two opening moves?
Puzzle 7
Blue to play and win.
