Chess engine written in Haskell
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| r | n | b | q | k | b | n | r |
|-------------------------------|
| p | p | p | p | p | p | p | p |
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|-------------------------------|
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|-------------------------------|
| | | | | P | | | |
|-------------------------------|
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|-------------------------------|
| P | P | P | P | | P | P | P |
|-------------------------------|
| R | N | B | Q | K | B | N | R |
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