Jumping Chess on the Chess Variants Game Courier

Syntax Error on line 65
MOVE: check is not a valid expression, because check is not a recognized piece, coordinate, command, or subroutine.
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For the sake of debugging, here is the full GAME Code program that this error occurred in. The lines have been properly indented to help you spot scope errors.
   0 moveindex 1
   1 MOVE: P e2-e4
   2 moveindex 2
   3 MOVE: p g7-g6
   4 moveindex 3
   5 MOVE: B f1-c4
   6 moveindex 4
   7 MOVE: p d7-d6
   8 moveindex 5
   9 MOVE: P d2-d4
  10 moveindex 6
  11 MOVE: n b8-c6
  12 moveindex 7
  13 MOVE: N g1-f3
  14 moveindex 8
  15 MOVE: b c8-e6
  16 moveindex 9
  17 MOVE: N b1-c3
  18 moveindex 10
  19 MOVE: p d6-d5
  20 moveindex 11
  21 MOVE: B c4-b3
  22 moveindex 12
  23 MOVE: q d8-d7
  24 moveindex 13
  25 MOVE: K e1-g1
  26 MOVE: R h1-f1
  27 moveindex 14
  28 MOVE: k e8-c8
  29 MOVE: r a8-d8
  30 moveindex 15
  31 MOVE: P e4-e5
  32 moveindex 16
  33 MOVE: p f7-f5
  34 moveindex 17
  35 MOVE: B c1-d2
  36 moveindex 18
  37 MOVE: q d7-d6
  38 moveindex 19
  39 MOVE: N f3-g5
  40 moveindex 20
  41 MOVE: n c6-a5
  42 moveindex 21
  43 MOVE: N g5-f7
  44 MOVE: p g6-
  45 moveindex 22
  46 MOVE: n g8-f6
  47 MOVE: N f7-
  48 moveindex 23
  49 MOVE: P e5-g7
  50 MOVE: n f6-
  51 moveindex 24
  52 MOVE: b f8-h6
  53 MOVE: @-g7
  54 moveindex 25
  55 MOVE: B d2-z7
  56 MOVE: b h6-
  57 moveindex 26
  58 MOVE: q d6-z1
  59 MOVE: h2-
  60 moveindex 27
  61 MOVE: B z7-g00
  62 MOVE: r h8-
  63 moveindex 28
  64 MOVE: q z1-h2
  65 MOVE: check
  66 moveindex 29
  67 MOVE: B g00-d6
  68 MOVE: p e7-
  69 moveindex 30
  70 MOVE: q h2-f0
  71 MOVE: K g1-
  72 end
  73 
functions
uservarArray
(
    [0] => Array
        (
            [main] => Array
                (
                )

        )

)
mlineArray
(
    [0] => MoveLine Object
        (
            [movenum] => 0
            [move] => 
            [level] => 0
            [comment] => 
            [length] => 0
            [newturn] => 
            [turn] => 0
        )

    [1] => MoveLine Object
        (
            [movenum] => 1
            [move] => P e2-e4
            [level] => 0
            [comment] => 
            [length] => 10
            [newturn] => 1
            [turn] => 1
        )

    [2] => MoveLine Object
        (
            [movenum] => 2
            [move] => p g7-g6
            [level] => 0
            [comment] => 
            [length] => 12
            [newturn] => 
            [turn] => 1
        )

    [3] => MoveLine Object
        (
            [movenum] => 3
            [move] => B f1-c4
            [level] => 0
            [comment] => 
            [length] => 10
            [newturn] => 1
            [turn] => 2
        )

    [4] => MoveLine Object
        (
            [movenum] => 4
            [move] => p d7-d6
            [level] => 0
            [comment] => 
            [length] => 12
            [newturn] => 
            [turn] => 2
        )

    [5] => MoveLine Object
        (
            [movenum] => 5
            [move] => P d2-d4
            [level] => 0
            [comment] => 
            [length] => 10
            [newturn] => 1
            [turn] => 3
        )

    [6] => MoveLine Object
        (
            [movenum] => 6
            [move] => n b8-c6
            [level] => 0
            [comment] => 
            [length] => 12
            [newturn] => 
            [turn] => 3
        )

    [7] => MoveLine Object
        (
            [movenum] => 7
            [move] => N g1-f3
            [level] => 0
            [comment] => 
            [length] => 10
            [newturn] => 1
            [turn] => 4
        )

    [8] => MoveLine Object
        (
            [movenum] => 8
            [move] => b c8-e6
            [level] => 0
            [comment] => 
            [length] => 12
            [newturn] => 
            [turn] => 4
        )

    [9] => MoveLine Object
        (
            [movenum] => 9
            [move] => N b1-c3
            [level] => 0
            [comment] => 
            [length] => 10
            [newturn] => 1
            [turn] => 5
        )

    [10] => MoveLine Object
        (
            [movenum] => 10
            [move] => p d6-d5
            [level] => 0
            [comment] => 
            [length] => 12
            [newturn] => 
            [turn] => 5
        )

    [11] => MoveLine Object
        (
            [movenum] => 11
            [move] => B c4-b3
            [level] => 0
            [comment] => 
            [length] => 10
            [newturn] => 1
            [turn] => 6
        )

    [12] => MoveLine Object
        (
            [movenum] => 12
            [move] => q d8-d7
            [level] => 0
            [comment] => 
            [length] => 12
            [newturn] => 
            [turn] => 6
        )

    [13] => MoveLine Object
        (
            [movenum] => 13
            [move] => K e1-g1;R h1-f1
            [level] => 0
            [comment] => 
            [length] => 18
            [newturn] => 1
            [turn] => 7
        )

    [14] => MoveLine Object
        (
            [movenum] => 14
            [move] => k e8-c8;r a8-d8
            [level] => 0
            [comment] => 
            [length] => 20
            [newturn] => 
            [turn] => 7
        )

    [15] => MoveLine Object
        (
            [movenum] => 15
            [move] => P e4-e5
            [level] => 0
            [comment] => 
            [length] => 10
            [newturn] => 1
            [turn] => 8
        )

    [16] => MoveLine Object
        (
            [movenum] => 16
            [move] => p f7-f5
            [level] => 0
            [comment] => 
            [length] => 12
            [newturn] => 
            [turn] => 8
        )

    [17] => MoveLine Object
        (
            [movenum] => 17
            [move] => B c1-d2
            [level] => 0
            [comment] => 
            [length] => 10
            [newturn] => 1
            [turn] => 9
        )

    [18] => MoveLine Object
        (
            [movenum] => 18
            [move] => q d7-d6
            [level] => 0
            [comment] => 
            [length] => 12
            [newturn] => 
            [turn] => 9
        )

    [19] => MoveLine Object
        (
            [movenum] => 19
            [move] => N f3-g5
            [level] => 0
            [comment] => 
            [length] => 11
            [newturn] => 1
            [turn] => 10
        )

    [20] => MoveLine Object
        (
            [movenum] => 20
            [move] => n c6-a5
            [level] => 0
            [comment] => 
            [length] => 13
            [newturn] => 
            [turn] => 10
        )

    [21] => MoveLine Object
        (
            [movenum] => 21
            [move] => N g5-f7;p g6-
            [level] => 0
            [comment] => 
            [length] => 17
            [newturn] => 1
            [turn] => 11
        )

    [22] => MoveLine Object
        (
            [movenum] => 22
            [move] => n g8-f6;N f7-
            [level] => 0
            [comment] => 
            [length] => 19
            [newturn] => 
            [turn] => 11
        )

    [23] => MoveLine Object
        (
            [movenum] => 23
            [move] => P e5-g7;n f6-
            [level] => 0
            [comment] => 
            [length] => 17
            [newturn] => 1
            [turn] => 12
        )

    [24] => MoveLine Object
        (
            [movenum] => 24
            [move] => b f8-h6;@-g7
            [level] => 0
            [comment] => 
            [length] => 18
            [newturn] => 
            [turn] => 12
        )

    [25] => MoveLine Object
        (
            [movenum] => 25
            [move] => B d2-z7;b h6-
            [level] => 0
            [comment] => 
            [length] => 17
            [newturn] => 1
            [turn] => 13
        )

    [26] => MoveLine Object
        (
            [movenum] => 26
            [move] => q d6-z1;h2-
            [level] => 0
            [comment] => 
            [length] => 17
            [newturn] => 
            [turn] => 13
        )

    [27] => MoveLine Object
        (
            [movenum] => 27
            [move] => B z7-g00;r h8-
            [level] => 0
            [comment] => 
            [length] => 18
            [newturn] => 1
            [turn] => 14
        )

    [28] => MoveLine Object
        (
            [movenum] => 28
            [move] => q z1-h2;check
            [level] => 0
            [comment] => 
            [length] => 19
            [newturn] => 
            [turn] => 14
        )

    [29] => MoveLine Object
        (
            [movenum] => 29
            [move] => B g00-d6;p e7-
            [level] => 0
            [comment] => 
            [length] => 18
            [newturn] => 1
            [turn] => 15
        )

    [30] => MoveLine Object
        (
            [movenum] => 30
            [move] => q h2-f0;K g1-
            [level] => 0
            [comment] => 
            [length] => 19
            [newturn] => 
            [turn] => 15
        )

)
allmovesArray
(
    [0] => moveindex 30;MOVE: q h2-f0; MOVE: K g1-
    [1] => moveindex 29;MOVE: B g00-d6; MOVE: p e7-
    [2] => moveindex 28;MOVE: q z1-h2; MOVE: check
    [3] => moveindex 27;MOVE: B z7-g00; MOVE: r h8-
    [4] => moveindex 26;MOVE: q d6-z1; MOVE: h2-
    [5] => moveindex 25;MOVE: B d2-z7; MOVE: b h6-
    [6] => moveindex 24;MOVE: b f8-h6; MOVE: @-g7
    [7] => moveindex 23;MOVE: P e5-g7; MOVE: n f6-
    [8] => moveindex 22;MOVE: n g8-f6; MOVE: N f7-
    [9] => moveindex 21;MOVE: N g5-f7; MOVE: p g6-
    [10] => moveindex 20;MOVE: n c6-a5
    [11] => moveindex 19;MOVE: N f3-g5
    [12] => moveindex 18;MOVE: q d7-d6
    [13] => moveindex 17;MOVE: B c1-d2
    [14] => moveindex 16;MOVE: p f7-f5
    [15] => moveindex 15;MOVE: P e4-e5
    [16] => moveindex 14;MOVE: k e8-c8; MOVE: r a8-d8
    [17] => moveindex 13;MOVE: K e1-g1; MOVE: R h1-f1
    [18] => moveindex 12;MOVE: q d8-d7
    [19] => moveindex 11;MOVE: B c4-b3
    [20] => moveindex 10;MOVE: p d6-d5
    [21] => moveindex 9;MOVE: N b1-c3
    [22] => moveindex 8;MOVE: b c8-e6
    [23] => moveindex 7;MOVE: N g1-f3
    [24] => moveindex 6;MOVE: n b8-c6
    [25] => moveindex 5;MOVE: P d2-d4
    [26] => moveindex 4;MOVE: p d7-d6
    [27] => moveindex 3;MOVE: B f1-c4
    [28] => moveindex 2;MOVE: p g7-g6
    [29] => moveindex 1;MOVE: P e2-e4
)
movelist
1. P e2-e4 
1... p g7-g6 
2. B f1-c4 
2... p d7-d6 
3. P d2-d4 
3... n b8-c6 
4. N g1-f3 
4... b c8-e6 
5. N b1-c3 
5... p d6-d5 
6. B c4-b3 
6... q d8-d7 
7. K e1-g1;R h1-f1 
7... k e8-c8;r a8-d8 
8. P e4-e5 
8... p f7-f5 
9. B c1-d2 
9... q d7-d6 
10. N f3-g5 
10... n c6-a5 
11. N g5-f7;p g6- 
11... n g8-f6;N f7- 
12. P e5-g7;n f6- 
12... b f8-h6;@-g7 
13. B d2-z7;b h6- 
13... q d6-z1;h2- 
14. B z7-g00;r h8- 
14... q z1-h2;check 
15. B g00-d6;p e7- 
15... q h2-f0;K g1-constantsArray
(
)