diff --git a/src/pages/Tic-tac-toe 5x5/index.html.ts b/src/pages/Tic-tac-toe 5x5/index.html.ts
new file mode 100644
index 0000000..2849311
--- /dev/null
+++ b/src/pages/Tic-tac-toe 5x5/index.html.ts
@@ -0,0 +1,197 @@
+// metadata
+export const version = "0.1.0"
+export const title = "Tic-Tac-Toe 5x5"
+export const description = "Tic-Tac-Toe 5x5 in sCrypt"
+export const replitLink = "https://replit.com/@yusufedresmaina/tictactoe5x5?embed=true"
+
+const html = `To initiate a game, Alice and Bob each lock up X amount of bitcoins into a contract UTXO. They take turns to play the game by sending signed transactions interacting with the stateful contract. If one of them wins, the winner claims the 2X bitcoins. If there is a draw, they take back their bitcoins.
+class TicTacToe extends SmartContract {
+ @prop()
+ alice: PubKey
+ @prop()
+ bob: PubKey
+
+ @prop(true)
+ is_alice_turn: boolean
+
+ @prop(true)
+ board: FixedArray<bigint, 25>
+
+ @prop()
+ static readonly TURNLEN: bigint = 1n
+ @prop()
+ static readonly BOARDLEN: bigint = 25n
+ @prop()
+ static readonly EMPTY: bigint = 0n
+ @prop()
+ static readonly ALICE: bigint = 1n
+ @prop()
+ static readonly BOB: bigint = 2n
+
+ constructor(
+ alice: PubKey,
+ bob: PubKey,
+ is_alice_turn: boolean,
+ board: FixedArray<bigint, 25>
+ ) {
+ super(alice, bob, is_alice_turn, board)
+ this.alice = alice
+ this.bob = bob
+ this.is_alice_turn = is_alice_turn
+ this.board = board
+ }
+
+ @method()
+ public move(n: bigint, sig: Sig, amount: bigint) {
+ assert(n >= 0n && n < TicTacToe.BOARDLEN, "Field out of bounds")
+ assert(this.board[Number(n)] == TicTacToe.EMPTY, "Field not empty")
+
+ let play = this.is_alice_turn ? TicTacToe.ALICE : TicTacToe.BOB
+ let player: PubKey = this.is_alice_turn ? this.alice : this.bob
+
+ assert(this.checkSig(sig, player), "Bad sig")
+
+ this.board[Number(n)] = play
+ this.is_alice_turn = !this.is_alice_turn
+
+ let outputs = toByteString("")
+ if (this.won(play)) {
+ let outputScript = Utils.buildPublicKeyHashScript(hash160(player))
+ let output = Utils.buildOutput(outputScript, amount)
+ outputs = output
+ } else if (this.full()) {
+ let aliceScript = Utils.buildPublicKeyHashScript(hash160(this.alice))
+ let aliceOutput = Utils.buildOutput(aliceScript, amount)
+
+ let bobScript = Utils.buildPublicKeyHashScript(hash160(this.bob))
+ let bobOutput = Utils.buildOutput(bobScript, amount)
+
+ outputs = aliceOutput + bobOutput
+ } else {
+ outputs = this.buildStateOutput(amount)
+ }
+
+ assert(this.ctx.hashOutputs == hash256(outputs), "Output hashes don't match")
+ }
+
+ @method()
+ won(play: bigint): boolean {
+ let lines: FixedArray<FixedArray<BigInt, 5>, 87> = [
+ [0n, 1n, 2n, 3n, 4n],
+ [1n, 2n, 3n, 4n, 5n],
+ [2n, 3n, 4n, 5n, 6n],
+ [5n, 6n, 7n, 8n, 9n],
+ [6n, 7n, 8n, 9n, 10n],
+ [7n, 8n, 9n, 10n, 11n],
+ [10n, 11n, 12n, 13n, 14n],
+ [11n, 12n, 13n, 14n, 15n],
+ [12n, 13n, 14n, 15n, 16n],
+ [15n, 16n, 17n, 18n, 19n],
+ [16n, 17n, 18n, 19n, 20n],
+ [17n, 18n, 19n, 20n, 21n],
+ [20n, 21n, 22n, 23n, 24n],
+ [21n, 22n, 23n, 24n, 25n],
+ [22n, 23n, 24n, 25n, 26n],
+ [25n, 26n, 27n, 28n, 29n],
+ [26n, 27n, 28n, 29n, 30n],
+ [27n, 28n, 29n, 30n, 31n],
+ [30n, 31n, 32n, 33n, 34n],
+ [31n, 32n, 33n, 34n, 35n],
+ [32n, 33n, 34n, 35n, 36n],
+ [35n, 36n, 37n, 38n, 39n],
+ [36n, 37n, 38n, 39n, 40n],
+ [37n, 38n, 39n, 40n, 41n],
+ [40n, 41n, 42n, 43n, 44n],
+ [41n, 42n, 43n, 44n, 45n],
+ [42n, 43n, 44n, 45n, 46n],
+ [45n, 46n, 47n, 48n, 49n],
+ [46n, 47n, 48n, 49n, 50n],
+ [47n, 48n, 49n, 50n, 51n],
+ [50n, 51n, 52n, 53n, 54n],
+ [51n, 52n, 53n, 54n, 55n],
+ [52n, 53n, 54n, 55n, 56n],
+
+ // Columns
+ [0n, 5n, 10n, 15n, 20n],
+ [5n, 10n, 15n, 20n, 25n],
+ [10n, 15n, 20n, 25n, 30n],
+ [15n, 20n, 25n, 30n, 35n],
+ [20n, 25n, 30n, 35n, 40n],
+ [25n, 30n, 35n, 40n, 45n],
+ [30n, 35n, 40n, 45n, 50n],
+ [35n, 40n, 45n, 50n, 55n],
+ [40n, 45n, 50n, 55n, 60n],
+ [1n, 6n, 11n, 16n, 21n],
+ [6n, 11n, 16n, 21n, 26n],
+ [11n, 16n, 21n, 26n, 31n],
+ [16n, 21n, 26n, 31n, 36n],
+ [21n, 26n, 31n, 36n, 41n],
+ [26n, 31n, 36n, 41n, 46n],
+ [31n, 36n, 41n, 46n, 51n],
+ [36n, 41n, 46n, 51n, 56n],
+ [41n, 46n, 51n, 56n, 61n],
+ [2n, 7n, 12n, 17n, 22n],
+ [7n, 12n, 17n, 22n, 27n],
+ [12n, 17n, 22n, 27n, 32n],
+ [17n, 22n, 27n, 32n, 37n],
+ [22n, 27n, 32n, 37n, 42n],
+ [27n, 32n, 37n, 42n, 47n],
+ [32n, 37n, 42n, 47n, 52n],
+ [37n, 42n, 47n, 52n, 57n],
+ [42n, 47n, 52n, 57n, 62n],
+ [3n, 8n, 13n, 18n, 23n],
+ [8n, 13n, 18n, 23n, 28n],
+ [13n, 18n, 23n, 28n, 33n],
+ [18n, 23n, 28n, 33n, 38n],
+ [23n, 28n, 33n, 38n, 43n],
+ [28n, 33n, 38n, 43n, 48n],
+ [33n, 38n, 43n, 48n, 53n],
+ [38n, 43n, 48n, 53n, 58n],
+ [43n, 48n, 53n, 58n, 63n],
+ [4n, 9n, 14n, 19n, 24n],
+ [9n, 14n, 19n, 24n, 29n],
+ [14n, 19n, 24n, 29n, 34n],
+ [19n, 24n, 29n, 34n, 39n],
+ [24n, 29n, 34n, 39n, 44n],
+ [29n, 34n, 39n, 44n, 49n],
+ [34n, 39n, 44n, 49n, 54n],
+ [39n, 44n, 49n, 54n, 59n],
+ [44n, 49n, 54n, 59n, 64n],
+ [5n, 10n, 15n, 20n, 25n],
+ [10n, 15n, 20n, 25n, 30n],
+ [15n, 20n, 25n, 30n, 35n],
+ [20n, 25n, 30n, 35n, 40n],
+ [25n, 30n, 35n, 40n, 45n],
+ [30n, 35n, 40n, 45n, 50n],
+ [35n, 40n, 45n, 50n, 55n],
+ [40n, 45n, 50n, 55n, 60n],
+ [45n, 50n, 55n, 60n, 65n],
+ ];
+
+ let anyLine = false
+
+ for (let i = 0; i < 87; i++) {
+ let line = true
+ for (let j = 0; j < 5; j++) {
+ line = line && this.board[Number(lines[i][j])] == play
+ }
+
+ anyLine = anyLine || line
+ }
+
+ return anyLine
+ }
+
+ @method()
+ full(): boolean {
+ let full = true
+ for (let i = 0; i < TicTacToe.BOARDLEN; i++) {
+ full = full && this.board[i] != TicTacToe.EMPTY
+ }
+ return full
+ }
+}
+
+`
+
+export default html
diff --git a/src/pages/Tic-tac-toe 5x5/index.tsx b/src/pages/Tic-tac-toe 5x5/index.tsx
new file mode 100644
index 0000000..65e6167
--- /dev/null
+++ b/src/pages/Tic-tac-toe 5x5/index.tsx
@@ -0,0 +1,29 @@
+import React from "react"
+import Example from "../../components/Example"
+import html, { version, title, description, replitLink } from "./index.html"
+
+interface Path {
+ path: string
+ title: string
+}
+
+interface Props {
+ prev: Path | null
+ next: Path | null
+}
+
+const ExamplePage: React.FC = ({ prev, next }) => {
+ return (
+
+ )
+}
+
+export default ExamplePage
diff --git a/src/pages/tic-tac-toe-5x5/index.md b/src/pages/tic-tac-toe-5x5/index.md
new file mode 100644
index 0000000..1ceec57
--- /dev/null
+++ b/src/pages/tic-tac-toe-5x5/index.md
@@ -0,0 +1,297 @@
+---
+title: Tic-Tac-Toe-5x5
+version: 0.1.0
+description: Tic-Tac-Toe-5x5 in sCrypt
+---
+To initiate a game, Alice and Bob each lock up X amount of bitcoins into a contract UTXO. They take turns to play the game by sending signed transactions interacting with the [stateful contract](https://scrypt.io/scrypt-ts/tutorials/stateful-contract). If one of them wins, the winner claims the 2X bitcoins. If there is a draw, they take back their bitcoins.
+```ts
+import {
+ prop, method, SmartContract, PubKey, FixedArray, assert, Sig, Utils, toByteString, hash160,
+ hash256,
+ fill,
+ ContractTransaction,
+ MethodCallOptions,
+ bsv
+} from "scrypt-ts";
+
+export class TicTacToe extends SmartContract {
+ @prop()
+ alice: PubKey;
+ @prop()
+ bob: PubKey;
+
+ @prop(true)
+ isAliceTurn: boolean;
+
+ @prop(true)
+ board: FixedArray;
+
+ static readonly EMPTY: bigint = 0n;
+ static readonly ALICE: bigint = 1n;
+ static readonly BOB: bigint = 2n;
+
+ constructor(alice: PubKey, bob: PubKey) {
+ super(...arguments)
+ this.alice = alice;
+ this.bob = bob;
+ this.isAliceTurn = true;
+ this.board = fill(TicTacToe.EMPTY, 25);
+ }
+
+ @method()
+ public move(n: bigint, sig: Sig) {
+ // check position `n`
+ assert(n >= 0n && n < 25n);
+ // check signature `sig`
+ let player: PubKey = this.isAliceTurn ? this.alice : this.bob;
+ assert(this.checkSig(sig, player), `checkSig failed, pubkey: ${player}`);
+ // update stateful properties to make the move
+ assert(this.board[Number(n)] === TicTacToe.EMPTY, `board at position ${n} is not empty: ${this.board[Number(n)]}`);
+ let play = this.isAliceTurn ? TicTacToe.ALICE : TicTacToe.BOB;
+ this.board[Number(n)] = play;
+ this.isAliceTurn = !this.isAliceTurn;
+
+ // build the transation outputs
+ let outputs = toByteString('');
+ if (this.won(play)) {
+ outputs = Utils.buildPublicKeyHashOutput(hash160(player), this.ctx.utxo.value);
+ }
+ else if (this.full()) {
+ const halfAmount = this.ctx.utxo.value / 2n;
+ const aliceOutput = Utils.buildPublicKeyHashOutput(hash160(this.alice), halfAmount);
+ const bobOutput = Utils.buildPublicKeyHashOutput(hash160(this.bob), halfAmount);
+ outputs = aliceOutput + bobOutput;
+ }
+ else {
+ // build a output that contains latest contract state.
+ outputs = this.buildStateOutput(this.ctx.utxo.value);
+ }
+
+ if (this.changeAmount > 0n) {
+ outputs += this.buildChangeOutput();
+ }
+ // make sure the transaction contains the expected outputs built above
+ assert(this.ctx.hashOutputs === hash256(outputs), "check hashOutputs failed");
+ }
+
+ @method()
+ won(play: bigint): boolean {
+ let lines: FixedArray, 87> = [
+ // Rows
+ [0n, 1n, 2n, 3n, 4n],
+ [1n, 2n, 3n, 4n, 5n],
+ [2n, 3n, 4n, 5n, 6n],
+ [5n, 6n, 7n, 8n, 9n],
+ [6n, 7n, 8n, 9n, 10n],
+ [7n, 8n, 9n, 10n, 11n],
+ [10n, 11n, 12n, 13n, 14n],
+ [11n, 12n, 13n, 14n, 15n],
+ [12n, 13n, 14n, 15n, 16n],
+ [15n, 16n, 17n, 18n, 19n],
+ [16n, 17n, 18n, 19n, 20n],
+ [17n, 18n, 19n, 20n, 21n],
+ [20n, 21n, 22n, 23n, 24n],
+ [21n, 22n, 23n, 24n, 25n],
+ [22n, 23n, 24n, 25n, 26n],
+ [25n, 26n, 27n, 28n, 29n],
+ [26n, 27n, 28n, 29n, 30n],
+ [27n, 28n, 29n, 30n, 31n],
+ [30n, 31n, 32n, 33n, 34n],
+ [31n, 32n, 33n, 34n, 35n],
+ [32n, 33n, 34n, 35n, 36n],
+ [35n, 36n, 37n, 38n, 39n],
+ [36n, 37n, 38n, 39n, 40n],
+ [37n, 38n, 39n, 40n, 41n],
+ [40n, 41n, 42n, 43n, 44n],
+ [41n, 42n, 43n, 44n, 45n],
+ [42n, 43n, 44n, 45n, 46n],
+ [45n, 46n, 47n, 48n, 49n],
+ [46n, 47n, 48n, 49n, 50n],
+ [47n, 48n, 49n, 50n, 51n],
+ [50n, 51n, 52n, 53n, 54n],
+ [51n, 52n, 53n, 54n, 55n],
+ [52n, 53n, 54n, 55n, 56n],
+
+ // Columns
+ [0n, 5n, 10n, 15n, 20n],
+ [5n, 10n, 15n, 20n, 25n],
+ [10n, 15n, 20n, 25n, 30n],
+ [15n, 20n, 25n, 30n, 35n],
+ [20n, 25n, 30n, 35n, 40n],
+ [25n, 30n, 35n, 40n, 45n],
+ [30n, 35n, 40n, 45n, 50n],
+ [35n, 40n, 45n, 50n, 55n],
+ [40n, 45n, 50n, 55n, 60n],
+ [1n, 6n, 11n, 16n, 21n],
+ [6n, 11n, 16n, 21n, 26n],
+ [11n, 16n, 21n, 26n, 31n],
+ [16n, 21n, 26n, 31n, 36n],
+ [21n, 26n, 31n, 36n, 41n],
+ [26n, 31n, 36n, 41n, 46n],
+ [31n, 36n, 41n, 46n, 51n],
+ [36n, 41n, 46n, 51n, 56n],
+ [41n, 46n, 51n, 56n, 61n],
+ [2n, 7n, 12n, 17n, 22n],
+ [7n, 12n, 17n, 22n, 27n],
+ [12n, 17n, 22n, 27n, 32n],
+ [17n, 22n, 27n, 32n, 37n],
+ [22n, 27n, 32n, 37n, 42n],
+ [27n, 32n, 37n, 42n, 47n],
+ [32n, 37n, 42n, 47n, 52n],
+ [37n, 42n, 47n, 52n, 57n],
+ [42n, 47n, 52n, 57n, 62n],
+ [3n, 8n, 13n, 18n, 23n],
+ [8n, 13n, 18n, 23n, 28n],
+ [13n, 18n, 23n, 28n, 33n],
+ [18n, 23n, 28n, 33n, 38n],
+ [23n, 28n, 33n, 38n, 43n],
+ [28n, 33n, 38n, 43n, 48n],
+ [33n, 38n, 43n, 48n, 53n],
+ [38n, 43n, 48n, 53n, 58n],
+ [43n, 48n, 53n, 58n, 63n],
+ [4n, 9n, 14n, 19n, 24n],
+ [9n, 14n, 19n, 24n, 29n],
+ [14n, 19n, 24n, 29n, 34n],
+ [19n, 24n, 29n, 34n, 39n],
+ [24n, 29n, 34n, 39n, 44n],
+ [29n, 34n, 39n, 44n, 49n],
+ [34n, 39n, 44n, 49n, 54n],
+ [39n, 44n, 49n, 54n, 59n],
+ [44n, 49n, 54n, 59n, 64n],
+ [5n, 10n, 15n, 20n, 25n],
+ [10n, 15n, 20n, 25n, 30n],
+ [15n, 20n, 25n, 30n, 35n],
+ [20n, 25n, 30n, 35n, 40n],
+ [25n, 30n, 35n, 40n, 45n],
+ [30n, 35n, 40n, 45n, 50n],
+ [35n, 40n, 45n, 50n, 55n],
+ [40n, 45n, 50n, 55n, 60n],
+ [45n, 50n, 55n, 60n, 65n],
+ ];
+
+ let anyLine = false;
+
+ for (let i = 0; i < 87; i++) {
+ let line = true;
+ for (let j = 0; j < 5; j++) {
+ line = line && this.board[Number(lines[i][j])] === play;
+ }
+
+ anyLine = anyLine || line;
+ }
+
+ return anyLine;
+ }
+
+ @method()
+ full(): boolean {
+ let full = true;
+ for (let i = 0; i < 25; i++) {
+ full = full && this.board[i] !== TicTacToe.EMPTY;
+ }
+ return full;
+ }
+
+ static buildTxForMove(
+ current: TicTacToe,
+ options: MethodCallOptions,
+ n: bigint
+ ): Promise {
+ const play = current.isAliceTurn ? TicTacToe.ALICE : TicTacToe.BOB
+ const nextInstance = current.next()
+ nextInstance.board[Number(n)] = play
+ nextInstance.isAliceTurn = !current.isAliceTurn
+
+ const unsignedTx: bsv.Transaction = new bsv.Transaction().addInput(
+ current.buildContractInput(options.fromUTXO)
+ )
+
+ if (nextInstance.won(play)) {
+ const script = Utils.buildPublicKeyHashScript(
+ hash160(current.isAliceTurn ? current.alice : current.bob)
+ )
+ unsignedTx
+ .addOutput(
+ new bsv.Transaction.Output({
+ script: bsv.Script.fromHex(script),
+ satoshis: current.balance,
+ })
+ )
+
+ if (options.changeAddress) {
+ unsignedTx.change(options.changeAddress)
+ }
+
+ return Promise.resolve({
+ tx: unsignedTx,
+ atInputIndex: 0,
+ nexts: [],
+ })
+ }
+
+ if (nextInstance.full()) {
+ const halfAmount = current.balance / 2
+
+ unsignedTx
+ .addOutput(
+ new bsv.Transaction.Output({
+ script: bsv.Script.fromHex(
+ Utils.buildPublicKeyHashScript(
+ hash160(current.alice)
+ )
+ ),
+ satoshis: halfAmount,
+ })
+ )
+ .addOutput(
+ new bsv.Transaction.Output({
+ script: bsv.Script.fromHex(
+ Utils.buildPublicKeyHashScript(hash160(current.bob))
+ ),
+ satoshis: halfAmount,
+ })
+ )
+
+ if (options.changeAddress) {
+ unsignedTx.change(options.changeAddress)
+ }
+
+ return Promise.resolve({
+ tx: unsignedTx,
+ atInputIndex: 0,
+ nexts: [],
+ })
+ }
+
+ unsignedTx
+ .setOutput(0, () => {
+ return new bsv.Transaction.Output({
+ script: nextInstance.lockingScript,
+ satoshis: current.balance,
+ })
+ })
+
+
+ if (options.changeAddress) {
+ unsignedTx.change(options.changeAddress)
+ }
+
+
+ const nexts = [
+ {
+ instance: nextInstance,
+ atOutputIndex: 0,
+ balance: current.balance,
+ },
+ ]
+
+ return Promise.resolve({
+ tx: unsignedTx,
+ atInputIndex: 0,
+ nexts,
+ next: nexts[0],
+ })
+
+ }
+}
+```
diff --git a/src/routes.tsx b/src/routes.tsx
index 1d4e9c4..532b8e2 100644
--- a/src/routes.tsx
+++ b/src/routes.tsx
@@ -29,6 +29,7 @@ import component_return from "./pages/return"
import component_script_context from "./pages/script-context"
import component_state from "./pages/state"
import component_tic_tac_toe from "./pages/tic-tac-toe"
+import component_tic_tac_toe_5x5 from "./pages/tic-tac-toe-5x5"
import component_time_lock from "./pages/time-lock"
import component_user_defined_types from "./pages/user-defined-types"
import component_variable_declarations from "./pages/variable-declarations"