Difference between revisions of "Puzzles"
From HexWiki
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(changed the heading and added a seventh puzzle by Piet Hein) |
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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. | 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. | ||
| − | == Puzzle 1 == | + | == Piet Hein's puzzles == |
| + | |||
| + | === Puzzle 1 === | ||
By [[Piet Hein]] | By [[Piet Hein]] | ||
| Line 10: | Line 12: | ||
<!-- <hex>R11 C11 Vd1 Vd2 Vd3 Vd4 Vd5 Vd6 Vd7 Vd9 Vd10 Vd11 Vh6 Vh7 Hc2 Hd8 Hh9 Hi4</hex> --> | <!-- <hex>R11 C11 Vd1 Vd2 Vd3 Vd4 Vd5 Vd6 Vd7 Vd9 Vd10 Vd11 Vh6 Vh7 Hc2 Hd8 Hh9 Hi4</hex> --> | ||
| − | == Puzzle 2 == | + | === Puzzle 2 === |
By [[Piet Hein]] | By [[Piet Hein]] | ||
| Line 19: | Line 21: | ||
<!-- <hex>R3 C3 Ha1 Va2 Vb3</hex> --> | <!-- <hex>R3 C3 Ha1 Va2 Vb3</hex> --> | ||
| − | == Puzzle 3 == | + | === Puzzle 3 === |
By [[Piet Hein]] | By [[Piet Hein]] | ||
| Line 28: | Line 30: | ||
<!-- <hex>R6 C6 Vc3 Vf3 Vd5 Hb1 Hb5</hex> --> | <!-- <hex>R6 C6 Vc3 Vf3 Vd5 Hb1 Hb5</hex> --> | ||
| − | == Puzzle 4 == | + | === Puzzle 4 === |
By [[Piet Hein]] | By [[Piet Hein]] | ||
| Line 37: | Line 39: | ||
<!-- <hex>R4 C4 Vd1 Va4 Hc2</hex> --> | <!-- <hex>R4 C4 Vd1 Va4 Hc2</hex> --> | ||
| − | == Puzzle 5 == | + | === Puzzle 5 === |
By [[Piet Hein]] | By [[Piet Hein]] | ||
| Line 46: | Line 48: | ||
<!-- <hex>R4 C4 Va4 Ha1</hex> --> | <!-- <hex>R4 C4 Va4 Ha1</hex> --> | ||
| − | == Puzzle 6 == | + | === Puzzle 6 === |
By [[Piet Hein]] | By [[Piet Hein]] | ||
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? | 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 == | + | === Puzzle 7 === |
| + | By Piet Hein. | ||
| + | |||
| + | Blue to play and win. | ||
| + | |||
| + | <hex>R5 C5 | ||
| + | Ra2 | ||
| + | Ba3 Rb3 Bc3 | ||
| + | Rb4 | ||
| + | Ba5 </hex> | ||
| + | |||
| + | == Other authors == | ||
| + | |||
| + | === Puzzle 1 === | ||
By Unknown | By Unknown | ||
| Line 62: | Line 77: | ||
<!-- <hex>R6 C6 Q1 Vf4 Hc2</hex> --> | <!-- <hex>R6 C6 Q1 Vf4 Hc2</hex> --> | ||
| − | == Puzzle | + | === Puzzle 2 === |
By [[John Tromp]] | By [[John Tromp]] | ||
Revision as of 19:38, 28 December 2007
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
Puzzle 1
By Piet Hein
Blue to play and win.
Puzzle 2
By Piet Hein
Blue to play and win.
Puzzle 3
By Piet Hein
Blue to play and win.
Puzzle 4
By Piet Hein
Blue to play and win.
Puzzle 5
By Piet Hein
Blue to play and win.
Puzzle 6
By Piet Hein
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
By Piet Hein.
Blue to play and win.
Other authors
Puzzle 1
By Unknown
Red (Vertical) to play and win
This is a very difficult puzzle whose complete solution is extremely complex.
Puzzle 2
By John Tromp
Blue to play and win.
