110 PRINT "THIS PROGRAM IS A 'BATTLE OF NUMBERS'"
120 PRINT"GAME, WHERE THE COMPUTER IS YOUR OPPONENT."
130 PRINT
140 PRINT"THE GAME STARTS WITH AN ASSUMED PILE OF OBJECTS. YOU AND"
150 PRINT"YOUR OPPONENT ALTERNATLY REMOVE OBJECTS FROM THE PILE. "
160 PRINT"WINNING IS DEFINED IN ADVANCE AS TAKING THE LAST OBJECT"
170 PRINT"OR NOT. YOU CAN ALSO SPECIFY SOME OTHER BEGINNING"
180 PRINT"CONDITIONS.  DON'T USE ZERO, HOWEVER, IN PLAYING THE GAME. "
200 PRINT
210 GOTO 330
220 FOR I=1 TO 10
230 PRINT
240 NEXT I
330 PRINT"ENTER PILE SIZE:";
340 INPUT N
350 IF N<>0 THEN 370
360 GOTO 330
370 IF N<>INT(N) THEN 220
380 IF N<1 THEN 220
390 PRINT "ENTER WIN OPTION - 1 TO TAKE LAST, 2 TO AVOID LAST: ";
400 INPUT M
410 IF M=1 THEN 430
420 IF M<>2 THEN 390
430 PRINT "ENTER MIN AND MAX: ";
440 INPUT A,B
450 IF A>B THEN 430
460 IF A<1 THEN 430
470 IF A<>INT(A) THEN 430
480 IF B<>INT(B) THEN 430
490 PRINT"ENTER START OPTION - 1 COMPUTER FIRST, 2 YOU FIRST:";
500 INPUT S
510 IF S=1 THEN 530
520 IF S<>2 THEN 490
530 LET C=A+B
540 IF S=2 THEN 570
550 GOSUB 600
560 IF W=1 THEN 220
570 GOSUB 810
580 IF W=1 THEN 220
590 GO TO 550
600 LET Q=N
610 IF M=1 THEN 630
620 LET Q=Q-1
630 IF M=1 THEN 680
640 IF N>A THEN 720
650 LET W=1
660 PRINT"COMPUTER TAKES";N;"AND LOSES. "
670 RETURN
680 IF N>B THEN 720
690 LET W=1
700 PRINT"COMPUTER TAKES";N;"AND WINS. "
710 RETURN
720 LET P=Q-C*INT(Q/C)
730 IF P>=A THEN 750
740 LET P=A
750 IF P<B THEN 770
760 LET P=B
770 LET N=N-P
780 PRINT"COMPUTER TAKES";P; "AND LEAVES";N
790 LET W=O
800 RETURN
810 PRINT "YOUR MOVE: ";
820 INPUT P
830 IF P<>0 THEN 870
840 PRINT"I TOLD YOU NOT TO USE ZERO...COMPUTER WINS BY FORFEIT. "
850 LET W=1
860 RETURN
870 IF P<>INT(P) THEN 920
880 IF P>=A THEN 910
890 IF P=N THEN 960
900 GO TO 920
910 IF P<=B THEN 940
920 PRINT "ILLEGAL MOVE, REENTER IT: ";
930 GO TO 820
940 LET N=N-P
950 IF N<>0 THEN 1030
960 IF M=1 THEN 1000
970 PRINT"TOUGH LUCK, YOU LOSE. "
980 LET W=1
990 RETURN
1000 PRINT"CONGRATULATIONS, YOU WIN. "
1010 LET W=1
1020 RETURN
1030 IF N>0 THEN 1060
1040 LET N=N+P
1050 GO TO 920
1060 LET W=0
1070 RETURN
1080 END