詰み is read as つみ (tsumi) and means checkmate.
つみ
tsumi
つまる
to become a geminate consonant
つまり
shrinkage
きつもん
cross-examination
つめこむ
to cram
つむ
to be checkmated
つめる
to force someone into a difficult situation by ...
つまらない
useless
つまらせる
to clog
つめあわせ
combination
つめよる
to draw near
つめしょ
station
つめかける
to crowd (a house)