Puzzle rush challenge
17 пользователей
26 июн. 2020 г.
Участие в 0 турнирах
NM Elijah Logozar is running an experiment to measure the impact of puzzle rush on tactical improvement and calculation speed. If you would like to join the experiment, message @LogoCzar with your name/email/age and he would be happy to add you to the spreadsheet.
