A game described by Scarne which is played on a 
board by two players who alternate placing, one at
a time, their four counters each, after which the counters are moved around (including
diagonally). Four counters in a row or square wins (Beeler et al. 1972). In
general, there are sixteen forms of the game, all of which were solved completely
by Guy Steele in 1998 with the following results: standard teeko (44 winning configurations)
is a draw, and advanced teeko (58 winning configurations) is a first-player win.
Here is a more complete summary of the results.
| variant | winner |
| standard | draw |
| alternate | draw |
| one-move alternate | draw |
| two-move alternate | draw |
| three-move alternate | draw |
| one-move standard | draw |
| two-move standard | draw |
| three-move standard | draw |
| standard, 58 positions | first-player win (13 turns) |
| alternate, 58 positions | draw |
| one-move alternate, 58 positions | draw |
| two-move alternate, 58 positions | draw |
| three-move alternate, 58 positions | draw |
| one-move standard, 58 positions | first-player win (25 turns) |
| two-move standard, 58 positions | draw |
| three-move standard, 58 positions | draw |
