Ed Pegg, Jr.'s no three in a line puzzle
Place five counters on the board, so that adding another counter to any empty cell would make a line of three counters. A puzzle invented by Ed Pegg, Jr.
Christian Lawson-Perfect's homepage
Place five counters on the board, so that adding another counter to any empty cell would make a line of three counters. A puzzle invented by Ed Pegg, Jr.