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* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75001&start=4 Re: Koivisto] by [[Finn Eggers]], [[CCC]], September 04, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75052 Koivisto 2.0] by [[Finn Eggers]], [[CCC]], September 08, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=77664 Koivisto 5.0] by [[Finn Eggers]], [[CCC]], July 07, 2021
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