id(PK)|    gameid    |    drawid    |   etc
----------------------------------------------
   1  |     1509     |      73      |   etc

SELECT id FROM tbl_play WHERE id = 1 OR gameid = 0 LIMIT 1;

SELECT id FROM
(
    SELECT id FROM tbl_play WHERE id = 1
    UNION
    (SELECT id FROM tbl_play WHERE gameid = 0 LIMIT 1)
) A ORDER BY id LIMIT 1;

SELECT id FROM tbl_play WHERE id = 1
    UNION
    (SELECT id FROM tbl_play WHERE gameid = 0 LIMIT 1)

SELECT id FROM
(
    SELECT id FROM tbl_play WHERE id = 1
    UNION
    (SELECT id FROM tbl_play WHERE gameid = 0 LIMIT 1)
) A ORDER BY id LIMIT 1;