1 DATA 2,3,4,9,1,5,8,7,6
2 DATA 2,3,4,9,1,5,8,7,6,2,9,8,3,1,7
3 DATA 4,5,6,2,1,6,4,1,8
4 DATA 0,1,-1,1,-1,1,-1,1,-1
5 DIM A(9)
6 DIM B(9)
7 DIM C(24)
8 DIM D(24)
9 DIM F(9)
10 FOR I=1 TO 9
11 READ A(I)
12 NEXT I
13 FOR I=1 TO 24
14 READ C(I)
15 NEXT I
16 FOR I=1 TO 9
17 READ F(I)
18 NEXT I
19 PRINT "TIC-TAC-TOE"
20 PRINT
21 PRINT "THE MOVE POSITIONS ARE:"
22 PRINT
23 PRINT "1 2 3"
24 PRINT "4 5 6"
25 PRINT "7 8 9"
26 GOSUB 133
27 GOSUB 133
32 LET E=0
33 LET G=2
34 LET K=0
35 FOR I=1 TO 9
36 LET B(I)=0
37 NEXT I
38 FOR I=1 TO 24
39 LET D(I)=0
40 NEXT I
41 PRINT
42 PRINT
43 PRINT "--BEGIN GAME--"
44 PRINT "YOU WILL BE 'X', I WILL BE 'O'"
47 PRINT "TYPE 0 IF YOU WANT ME TO GO FIRST";
48 INPUT I
49 IF I=0 THEN 65
50 LET L=-1
51 PRINT "YOUR MOVE";
52 INPUT I
53 PRINT
54 PRINT
55 LET H=INT(ABS(I))
56 IF H<>I THEN 50
57 IF H < 1 THEN 50
58 IF H>9 THEN 50
59 LET H=A(H)
60 IF B(H) <> 0 THEN 50
61 IF K=1 THEN 64
62 LET G=F(H)
63 LET K=1
64 GOSUB 111
65 LET L=1
66 FOR I=1 TO 22 STEP 3
67 IF D(I) + D(I+1) + D(I+2) = -3 THEN 92
68 NEXT I
69 FOR I=1 TO 22 STEP 3
70 IF D(I) + D(I+1) + D(I+2) = 2 THEN 90
71 NEXT I
72 FOR I=1 TO 22 STEP 3
73 IF D(I) + D(I+1) + D(I+2) = -2 THEN 106
74 NEXT I
75 IF E=1 THEN 77
76 IF G = -1 THEN 78
77 IF B(1)=0 THEN 100
78 IF G <> 0 THEN 82
79 FOR I=2 TO 8 STEP 2
80 IF B(I)=0 THEN 101
81 NEXT I
82 IF H=8 THEN 86
83 FOR I=H+1 TO 8
84 IF B(I)=0 THEN 101
85 NEXT I
86 FOR I=2 TO 9
87 IF B(I)=0 THEN 101
88 NEXT I
89 GOTO 98
90 PRINT "I WIN"
91 GOTO 900
92 PRINT "YOU ARE NOT ALLOWED TO WIN"
93 FOR I=1 TO 9
94 LET B(I)=1
95 NEXT I
96 GOSUB 117
97 GOTO 900
98 PRINT "DRAW"
99 GOTO 900
100 LET I=1
101 LET H=I
102 GOSUB 111
103 LET E=1
104 GOSUB 117
105 GOTO 50
106 FOR J=I TO I+2
107 IF D(J)=0 THEN 109
108 NEXT J
109 LET I=C(J)
110 GOTO 101
111 LET B(H)=L
112 FOR M=1 TO 24
113 IF C(M) <> H THEN 115
114 LET D(M)=L
115 NEXT M
116 RETURN
117 FOR N=1 TO 9
118 IF B(N)=0 THEN 200
119 NEXT N
120 IF N<100 THEN 98
121 FOR N=1 TO 9 STEP 3
122 FOR O= 0 TO 2
123 IF B(A(O+N))=0 THEN 127
124 IF B(A(O+N))=1 THEN 129
125 PRINT "X ";
126 GOTO 130
127 PRINT "- ";
128 GOTO 130
129 PRINT "O ";
130 NEXT O
131 PRINT
132 NEXT N
133 PRINT
136 RETURN
137 STOP
200 LET N=1000
210 GOTO 119
900 GOTO 910
910 PRINT "TRY AGAIN (IF SO TYPE 0)";
920 INPUT I
930 IF I<>0 THEN 999
940 GOTO 27
999 END