Difference between revisions of "Puzzles"
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== [[Piet Hein]]'s puzzles == | == [[Piet Hein]]'s puzzles == | ||
| − | + | See article [[Piet Hein's puzzles]] | |
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| − | + | == [[Claude Berge]]'s puzzles == | |
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| − | + | See article [[Claude Berge's puzzles]] | |
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== Bert Enderton == | == Bert Enderton == | ||
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=== Puzzle 3 === | === Puzzle 3 === | ||
| − | Red | + | Red to play and win. |
This is a very difficult puzzle whose complete solution is extremely complex. | This is a very difficult puzzle whose complete solution is extremely complex. | ||
| − | + | <hexboard size="6x6" | |
| + | contents="B c2 R f4" | ||
| + | /> | ||
| − | < | + | === Puzzle 4 === |
| + | |||
| + | Red to play and win. | ||
| + | |||
| + | <hexboard size="7x7" | ||
| + | xcontents="B b4 c4 d4 R b3 b6" | ||
| + | contents="B f4 e4 d4 R f5 f2" | ||
| + | /> | ||
== Other authors == | == Other authors == | ||
=== Puzzle 1 === | === Puzzle 1 === | ||
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By [[John Tromp]] | By [[John Tromp]] | ||
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| − | <hex> R10 C10 | + | <hex> R10 C10 Q1 |
Ri1 | Ri1 | ||
Bg4 Rh4 | Bg4 Rh4 | ||
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Rc8 | Rc8 | ||
Rd9 </hex> | Rd9 </hex> | ||
| + | |||
| + | === Puzzle 2 === | ||
| + | By ''lazyplayer''. Blue to play and win. | ||
| + | |||
| + | <hex> R7 C7 Q1 | ||
| + | Vb2 | ||
| + | He3 | ||
| + | Vb5 | ||
| + | </hex> | ||
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| + | === Puzzle 3 === | ||
| + | By [[David J Bush]]. Taken from a game on [[Playsite]] in 2003. Red to play and win. | ||
| + | |||
| + | <hexboard size="10x10" | ||
| + | coords="show" | ||
| + | contents="R a3 e3 f3 g3 a4 b4 c4 e4 g4 h4 c5 d5 f5 e6 e7 | ||
| + | B e2 f2 g2 h2 i2 b3 d3 d4 f4 b5 e5 d6 g8 c9 d9" | ||
| + | /> | ||
| + | |||
| + | Source: this [[Little Golem]] forum [http://www.littlegolem.net/jsp/forum/topic2.jsp?forum=50&topic=14 thread]. | ||
| + | |||
| + | === Puzzle 4 === | ||
| + | Designed by ''Door1'', helped by ''David J Bush''. Inspired by a game on [[Kurnik]] in May 2005. Blue to play and win. | ||
| + | |||
| + | <hexboard size="10x10" | ||
| + | coords="show" | ||
| + | contents=" | ||
| + | R g3 b4 e4 c6 d7 d8 | ||
| + | B b2 g2 f3 f4 e5" | ||
| + | /> | ||
| + | |||
| + | Source: this [[Little Golem]] forum [http://www.littlegolem.net/jsp/forum/topic2.jsp?forum=50&topic=212 thread]. | ||
| + | |||
| + | === Puzzle 5 === | ||
| + | Designed by ''Arek Kulczycki''. Game where both players play very close to perfect. Move 7.b9 was the first mistake, however it was very hard to refute it.<br/> | ||
| + | Blue to move and win (there is just 1 winning sequence). | ||
| + | |||
| + | <hexboard size="11x11" | ||
| + | coords="show" | ||
| + | contents="B 4:h2 R 1:a4 R 5:b5 R 3:c6 B 6:e7 B 2:g8 R 7:b9" | ||
| + | /> | ||
| + | |||
| + | === Puzzle 6 === | ||
| + | From Ryan B. Hayward, "A puzzling Hex primer" (https://webdocs.cs.ualberta.ca/~hayward/papers/puzzlingHexPrimer.pdf). Red to play and win. | ||
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| + | <hexboard size="6x6" | ||
| + | coords="show" | ||
| + | contents="R a4 a6 B a5 b5" | ||
| + | /> | ||
| + | |||
| + | Note that this position is [[Equivalent patterns|equivalent]] to the position with the pieces at a5 and a6 removed. This could arise in response to the [[Small_boards#Winner_depending_on_the_first_move|winning opening move a4]]. | ||
== See also == | == See also == | ||
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* [[Puzzle server]] | * [[Puzzle server]] | ||
| − | [[Cameron Browne]] offers a lot of | + | [[Cameron Browne]] offers a lot of original puzzles in his book [[Hex Strategy Making the Right Connections]] |
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| + | [[Matthew Seymour]] has created a website with 500 interactive Hex puzzles at http://www.mseymour.ca/hex_puzzle/hexpuzzle.html | ||
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| + | [[Ryan Hayward]] and [[Bjarne Toft]] include several sets of puzzles in their book [[Hex: The Full Story]], including 49 puzzles originally published in Politiken, 28 unpublished puzzles by Jens Lindhard, 99 puzzles by Henderson, and the 4 puzzles by Bert Enderton. | ||
[[category:Puzzle]] | [[category:Puzzle]] | ||
Revision as of 21:24, 20 February 2021
Solving puzzles is a very good way of becoming a stronger player. Solve as many as possible! And feel free to post your own puzzles here.
Contents
Piet Hein's puzzles
See article Piet Hein's puzzles
Claude Berge's puzzles
See article Claude Berge's puzzles
Bert Enderton
Puzzle 1
Red to play and win.
Puzzle 2
Red to play and win.
Puzzle 3
Red to play and win.
This is a very difficult puzzle whose complete solution is extremely complex.
Puzzle 4
Red to play and win.
Other authors
Puzzle 1
By John Tromp
Blue to play and win.
Puzzle 2
By lazyplayer. Blue to play and win.
Puzzle 3
By David J Bush. Taken from a game on Playsite in 2003. Red to play and win.
Source: this Little Golem forum thread.
Puzzle 4
Designed by Door1, helped by David J Bush. Inspired by a game on Kurnik in May 2005. Blue to play and win.
Source: this Little Golem forum thread.
Puzzle 5
Designed by Arek Kulczycki. Game where both players play very close to perfect. Move 7.b9 was the first mistake, however it was very hard to refute it.
Blue to move and win (there is just 1 winning sequence).
Puzzle 6
From Ryan B. Hayward, "A puzzling Hex primer" (https://webdocs.cs.ualberta.ca/~hayward/papers/puzzlingHexPrimer.pdf). Red to play and win.
Note that this position is equivalent to the position with the pieces at a5 and a6 removed. This could arise in response to the winning opening move a4.
See also
Cameron Browne offers a lot of original puzzles in his book Hex Strategy Making the Right Connections
Matthew Seymour has created a website with 500 interactive Hex puzzles at http://www.mseymour.ca/hex_puzzle/hexpuzzle.html
Ryan Hayward and Bjarne Toft include several sets of puzzles in their book Hex: The Full Story, including 49 puzzles originally published in Politiken, 28 unpublished puzzles by Jens Lindhard, 99 puzzles by Henderson, and the 4 puzzles by Bert Enderton.
