diff --git a/back/src/Game.ts b/back/src/Game.ts
index 028dd21..4643da6 100644
--- a/back/src/Game.ts
+++ b/back/src/Game.ts
@@ -1,4 +1,4 @@
-import {canPlay, Card, cmpCard, Suit} from 'bsx-core';
+import {Card, Suit} from 'bsx-core';
 
 import Client from './Client';
 import logSocket from './logSocket';
@@ -9,6 +9,7 @@ class Player {
 	game: Game;
 	client: Client;
 	cards: Card[] = [];
+	stack: Card[] = [];
 	disconnected = false;
 	disconnectListener?: () => void;
 	rank = 0;
@@ -17,7 +18,6 @@ class Player {
 		this.client = client;
 	}
 	sendGameState() {
-		this.cards.sort(cmpCard);
 		const i = this.game.players.indexOf(this);
 		const otherPlayers = [];
 		for (let j = 1; j < this.game.players.length; ++j)
@@ -30,6 +30,7 @@ class Player {
 				numCards: p.cards.length,
 				rank: p.rank,
 			})),
+			phase: this.game.phase,
 			lastPlayed: this.game.lastPlayed,
 			lastPlayedPlayer: this.game.lastPlayedPlayer < 0 ? null : this.game.players[this.game.lastPlayedPlayer].client.username,
 			playerTurn: this.game.players[this.game.playerTurn].client.username
@@ -76,7 +77,7 @@ export default class Game {
 			});
 			if (playersLeft.length < 2) {
 				if (playersLeft.length === 1)
-					playersLeft[0].rank = ++this.playersFinished;
+					playersLeft[0].rank = ++this.playersFinished; // rank is reversed, fix later
 				break;
 			}
 			await this.round();
@@ -93,33 +94,56 @@ export default class Game {
 	}
 	async round() {
 		this.phase = 0;
-		await this.prepare();
+		await this.prepare(); // Phase 0
 		this.phase = 1;
-		while (true) {
+		this.lastPlayed = 0;
+		while (true) { // Phase 1
 			const p = this.players[this.playerTurn];
 			if (p.rank || p.disconnected) {
 				this.playerTurn = (this.playerTurn + 1) % this.players.length;
 				continue;
 			}
-			let result = await this.turn();
-			if (result === false) break; // Called BS!
+			await this.turn();
+			if (this.phase === 2) break; // Called BS!
 			this.lastPlayedPlayer = this.playerTurn;
 			this.playerTurn = (this.playerTurn + 1) % this.players.length;
 		}
-		this.phase = 2;
-		while (this.lastPlayed > 0) {
-			let result = await this.flip();
-			if (result === false) { // Oops, flipped over a red card
-
+		while (this.lastPlayed > 0) { // Phase 2
+			await this.flip();
+			if (this.phase === 3) { // Oops, flipped over a red card!
+				await this.giveup(); // The player who called BS won and now the challenged player must give up a card!
+				return;
 			}
 		}
-		this.lastPlayed = 0;
+		await this.giveup(); // The player who called BS won and now they must give up a card!
 	}
-	async prepare() {
+	async prepare() { // Players prepare their hand for this round
 		this.broadcastGameState();
+		const playerPromises = [];
+		for (let i = 0; i < this.room.clients.length; ++i) {
+			const p = this.players[i];
+			if (p.rank || p.disconnected) continue;
+			playerPromises.push(new Promise<void>(resolve => {
+				p.client.once('prepare', order => {
+					delete p.disconnectListener;
+					(() => {
+						
 
+						p.client.socket.disconnect();
+						logSocket(p.client.socket, 'Bad cards argument on turn');
+					})();
+					resolve();
+				});
+				p.disconnectListener = () => {
+					delete p.disconnectListener;
+					p.client.removeAllListeners('prepare');
+					resolve();
+				};
+			}));
+		}
+		await Promise.all(playerPromises);
 	}
-	async turn() {
+	async turn() { // Do a turn
 		const p = this.players[this.playerTurn];
 		this.broadcastGameState();
 		await new Promise<void>(resolve => {
@@ -127,11 +151,12 @@ export default class Game {
 				delete p.disconnectListener;
 				(() => {
 					if (num === -1) {
-						return false; // Called BS!
+						this.phase = 2; // Called BS, move on to the next phase!
+						return;
 					}
 					if (num > this.lastPlayed) {
 						this.lastPlayed = num;
-						return true;
+						return;
 					}
 					p.client.socket.disconnect();
 					logSocket(p.client.socket, 'Bad cards argument on turn');
@@ -145,17 +170,19 @@ export default class Game {
 			};
 		});
 	}
-	async flip() {
+	async flip() { // Someone called BS and now the challenged player must flip over a card
 		const p = this.players[this.lastPlayedPlayer];
 		this.broadcastGameState();
 		await new Promise<void>(resolve => {
 			p.client.once('turn', selectedPlayer => {
 				delete p.disconnectListener;
 				(() => {
-					if (this.players[selectedPlayer].cards === -1) {
-						return false;
+					if (this.players[selectedPlayer].stack.length > 0) {
+						if (this.players[selectedPlayer].stack[0].suit === Suit.Diamonds ||
+							this.players[selectedPlayer].stack[0].suit === Suit.Hearts) this.phase = 3; // Red card
+						this.players[selectedPlayer].stack.splice(0);
+						return;
 					}
-					
 					p.client.socket.disconnect();
 					logSocket(p.client.socket, 'Bad cards argument on turn');
 				})();
@@ -163,7 +190,27 @@ export default class Game {
 			});
 			p.disconnectListener = () => {
 				delete p.disconnectListener;
-				p.client.removeAllListeners('turn');
+				p.client.removeAllListeners('flip');
+				resolve();
+			};
+		});
+	}
+	async giveup() { // Give up a card
+		const p = this.players[this.lastPlayed ? this.lastPlayedPlayer : this.playerTurn];
+		this.broadcastGameState();
+		await new Promise<void>(resolve => {
+			p.client.once('giveup', card => {
+				delete p.disconnectListener;
+				(() => {
+					p.cards.splice(card); // Remove card, may want to check if it is valid
+					p.client.socket.disconnect();
+					logSocket(p.client.socket, 'Bad cards argument on turn');
+				})();
+				resolve();
+			});
+			p.disconnectListener = () => {
+				delete p.disconnectListener;
+				p.client.removeAllListeners('giveup');
 				resolve();
 			};
 		});