Monthly record of oseisou's rank (dan/kyu)
month dan/kyu win/lose win ratio
2021 /11 9.00 Kyu 1 win 0 lose 1.00
2021 /10 9.00 Kyu 1 win 5 lose .166
2021 /09 4.49 Kyu 6 win 11 lose .352
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