Sushi Chef

poki.com

Sushi Chef is a Match-3 puzzle game. You are a Sushi Chef and your customers want to order a specific type of sushi in threefold. Make sure to serve your customers in time or you will be fired by your boss.Drag the sushi across the board to make sets of three. If you can't find a combination of 3 that your customers want, first try to swap some other sushi around.Sushi Chef was created by RedFoc. They have also created Space Bubbles and the popular Checkers.

Grab The Apple

poki.com

Grab the Apple is a skill game where you extend your elastic arms to collect all the apples on the level without touching obstacles and bombs. You want apples and you want them now. Use your keyboard keys or your mouse to extend your elongated arm and control its direction. Don't touch anything that is not an apple unless you think it's a hidden secret way that will open the way for an apple. If you accidentally touch an obstacle, your hand will recoil and go back to its original place so you have to start over again. Don't forget to share Grab the Apple with your friends so you can compare your scores!Move arm - WASD, arrow keys, or mouse cursorMenu - MRestart - RGrab the Apple is created by Korigame. Play their other skill games on Poki: Climb Fling and kORi WALkYou can play Grab the Apple for free on Poki.Grab the Apple can be played on your computer.

Color Pencil Run

poki.com

Here you can play Color Pencil Run. Color Pencil Run is one of our selected Racing Games.

Brezzy Pony Town

breezy.pony.town

A game of ponies building a town.

Online Sudoku

poki.com

Play new Sudoku-puzzles on a daily basis. You can play as much puzzles as you like and get a new one everyday! On top of that you can compete with others via the leaderboard! Make sure to get on top of it!

Parking Order

poki.com

Here you can play Parking Order. Parking Order is one of our selected Racing Games.

Nuts and Bolts: Screwing Puzzle

poki.com

Nuts And Bolts - Screwing Puzzle is a puzzle game where your mission is to unscrew and disassemble everything! Navigate through a maze of tangled iron sheets, bolts, nuts, and plates, all pinned down by stubborn screws. Your challenge is to strategically remove all the screws to break down the structures and solve the puzzle. But watch out—you only have a limited number of spots to place the removed screws! If you find yourself stuck, don’t worry—there are plenty of hints and tools to help you out. Can you unscrew every last bolt and conquer the puzzle?

Puppetman: Ragdoll Puzzle

poki.com

Here you can play Puppetman: Ragdoll Puzzle. Puppetman: Ragdoll Puzzle is one of our selected Ragdoll Games.

Dasi Post Office Manager

poki.com

Here you can play Dasi Post Office Manager. Dasi Post Office Manager is one of our selected Management Games.

Candy Crush Soda Saga

king.com

From the makers of the legendary Candy Crush Saga comes Candy Crush Soda Saga! Unique candies, more divine matching combinations and challenging game modes brimming with purple soda and fun! This mouth-watering puzzle adventure will instantly quench your thirst for fun. Join Kimmy on her juicy journey to find Tiffi, by switching and matching your way through new dimensions of magical gameplay. Take on this Sodalicious Saga alone or play with friends to see who can get the highest score! Monthly season updates bring unique quests and exciting gameplay for you to explore! Complete quests to progress through the Season Pass while earning rewards and boosters to help you on your Saga. Show your competitive side in the Episode Race! Compete against other players to see who can complete levels the fastest and progress the quickest. Or work as a team in the 4 in a Row game mode where players work together for Sodalicious rewards!

Spooky Squashers

poki.com

Spooky Squashers is a sports game where you are a squash playing squash, and you must escape the spooky castle filled with ghosts. Swing your racket to throw a ball towards your foes. You will defeat a minion once your ball hits them enough times to knock them out. But if your ball bounces off a wall three times in a row without touching an enemy, you will lose that ball. So pay attention to your aim, or if you can't, try to catch your balls and hit them again before they disappear. Enrich your game with power-ups like Bowling Ball and the Missile, unlock cool equipment such as the Shovel or the Frying Pan, and finish the game in every difficulty setting it offers. Once you're a squash master, you can defeat the Evil Chef Ghost, or make it to top ten in the leaderboards!Spooky Squashers is created by Raviv Elon. This is their first game on Poki!You can play Spooky Squashers for free on Poki.Spooky Squashers is only playable on your computer for now.

Fantasy Idle Tycoon 2

poki.com

Here you can play Fantasy Idle Tycoon 2. Fantasy Idle Tycoon 2 is one of our selected Idle Games.

Odd One Out

artsandculture.google.com

Can you spot the odd one out? One of these images is not like the other–it is created by Google Al. Pick out these “imposters” hidden among artworks & artifacts on Google Arts & Culture. Created by Caroline Buttet and Emmanuel Durgoni: Artists in Residence at Google Arts & Culture Lab.

Merge Penguins

poki.com

Merge Penguin is an exciting merge game where you hatch and evolve different penguins to fend off waves of enemy attacks! Start by buying eggs, then merge identical ones to create stronger penguins. Strategically place your penguins to maximize their defense, upgrade them to deal more damage, and use boosts to prepare for incoming waves. The more you play, the more unique penguins you unlock. How many waves can your penguins defend against?

Truck Loader 3

poki.com

Truck Loader 3 is a puzzle game where you have collect the cargo and load them onto a truck. You're driving a forklift to collect all the boxes that are spread all over the level. Collect all boxes to complete the level. Sometimes it is necessary to press buttons, pull levers and a lot more, to find the right ways to collect the cargo. Can you complete every level in Truck Loader 3?Move left/right - A/DJump - WPick up boxes - Aim and tap/clickTruck Loader 3 was created by 7Spot Games, a Lithuanian video game developer and publisher. They have other addictive games on Poki: Duo Vikings 3, Duo Vikings 2, Duo Vikings, Duo Survival, Duo Survival 2, ZOOM-BE, ZOOM-BE 2 and ZOOM-BE 3. They also have truck games like: Truck Loader 2 and Truck Loader 5.

Mortal Cage Fighter

poki.com

Mortal Cage Fighter is a fighting game created by MarketJS. Fight your way to victory in this street fighter game! Use your punches, kicks, jumps and special attacks to deplete your opponent's health bar. Choose one of the four fighters: Marshall, Paulson, Xiao Li, and Keesha. Then select your favorite map among choices like Back Alley, Downtown and Subway. The next step is to execute special abilities unique to the character you choose. Win at least two of three rounds to win the fight. Are you ready to be the king of all fighters?Move - WASD keysPunch - JKick - KMortal Cage Fighter is created by MarketJS. Play their other casual games on Poki: Classic Solitaire, Ping Pong, Sudoku Village, Tactical Squad, Super Bubble Shooter, Mine Sweeper, Mine Sweeper, 8 Ball Pool With Buddies, Mahjong Pyramids, Unblock It, Power Badminton, True Love Calculator, Hangman, Ludo Hero, math-trivia-lite, Super Girl Story and Typing Fighter

Cursed Treasure Level Pack

poki.com

Cursed Treasure is back with a new level pack! Cursed Treasure Level Pack is a tower defense game where you play as an evil overlord. Protect your gems from waves of heroes with, awesome upgradable towers, new skills, and devastating spells in as much as 15 new levels! Replay levels to get "brilliant" scores, and unlock many new skills!In a tower defense game, waves of enemies come to attack your castle. You have to build towers with special abilities to defend your castle and your treasures. Use your mouse to choose which towers you want to build and where you want to place them.Cursed Treasure Level Pack was created by Iriysoft, and is the new installment to the Cursed Treasure series.

Grimace's Birthday

grimacesbirthday.com

Grimace's Birthday is a 2023 browser-based platformer game developed by Krool Toys and published by McDonald's. Released alongside the Grimace Shake on 12 June 2023, the game was produced using software to imitate a Game Boy Color title.

Extreme Car Parking!

poki.com

Extreme Car Parking is a vehicle parking skill game where you must park various types of cars in difficult conditions. Prove you're an expert driver in Extreme Car Parking! In each level, you will face a bunch of obstacles on the road. There are orange cones, barriers, and other vehicles to avoid. See how quickly you can stop in the parking spot! The red car needs to be parked in the spot indicated by the yellow marker. You must drive the car carefully around the area and avoid crashing or you have to restart the level. The faster you complete the level, the more stars you earn. Compare your score stars and parking skills with your friends and have twice as much fun!The red car needs to be parked in the spot indicated by the yellow marker. You must drive the car carefully around the area and avoid crashing or you have to restart the level. The faster you complete the level, the more stars you earn.Move car - Arrow keysExtreme Car Parking was created by QKY Games in July 2017.Extreme Car Parking is playable both on your desktop and on your mobile phone on Poki for free: Extreme Car Parking!

Super Oscar

poki.com

Super Oscar is a platform adventure game where you lead Oscar through levels filled with obstacles, enemies, gold, and powers. Inspired by the familiar classics while keeping things fresh, this game offers 4 unlockable heroes, 6 stunning maps, 35 levels and more than 50 types of enemies. You even get to upgrade your jumping skills and your fireball as you progress through the game! Go ahead and help Super Oscar in this superb platformer!Move - Arrow keys Fireball - Z Jump - Space barSuper Oscar is created by Chorrus Games. This is their first game on Poki!

Moving Truck: Bounty

poki.com

Moving Truck: Bounty is a puzzle platform game in which you transfer cargo to your destination without damaging the load. Drive from point A to B while paying attention to the bumpy roads, environmental hazards like falling rocks, potholes, and large contraptions that could either give you a speed boost or cause you to spill your goods. Make sure to keep the mistakes to a minimum so they don't cut your earnings. You can even perform stunts if you feel courageous. You can also purchase many awesome items with the money you've earned, like a new paint job, car skins, tags, new wheels, you name it! Don't forget to use Nitro to maximize your score!Move left/right - A/D or Left and Right arrow keysAccelerate - W or Up ArrowNitro - Space barMoving Truck: Bounty was created by 7Spot Games. Play their other puzzle games on Poki: Moving Truck: Construction, Moving Truck, Duo Survival, Duo Survival 2, Duo Vikings, Duo Vikings 2, Duo Vikings 3, ZOOM-BE, ZOOM-BE 2, ZOOM-BE 3, Truck Loader, Truck Loader 4, and Truck Loader 5You can play Moving Truck: Bounty for free on Poki.Moving Truck: Bounty can be played on your computer and mobile devices like phones and tablets.

War of Sticks

poki.com

War of Sticks is a strategy game where you command a stick kingdom's military and manage their resources and workload to defeat the enemy forces efficiently. It's time for your poor stick people to break away from the oppressing Red Empire. Mine, build, equip, upgrade, attack, and defend until your people are liberated. Start by training miners to collect gold, then use your earnings on units like shielders, archers, barbarians, and even wizards! Use the stones your miners collected to build defense towers. Don't forget to upgrade each one of your units and buildings to reach the full limit of your power.Use your mouse or finger to activate the purchase buttons located on the upper-left corner of your screen. Purchase miners to collect gold, then use your earnings on units like shielders, archers, barbarians, and wizards.War of Sticks is created by Shoom Games, a game developer based in Ukraine. This is their first game on Poki!War of Sticks is free to play on Poki.War of Sticks is playable on both your computer and mobile devices like phones and tablets.

The mission of camac

poki.com

Here you can play The mission of camac. The mission of camac is one of our selected Platform Games.

Bunny Market

poki.com

Here you can play Bunny Market. Bunny Market is one of our selected Animal Games.

Huggy Wuggy Shooter

poki.com

Huggy Wuggy Shooter is a scary action game where you must survive hordes of haunted toys using various arms. In this horrifying adventure, you are trapped inside Huggy Wuggy's toy factory where all the neglected toys have come to life with nothing but fury. Every night, they prey on unsuspecting visitors, and now it's your turn. Walk around the colorful abandoned factory and shoot every possessed toy that stands in your way. There's a multitude of weapons to choose from, so you can also have some fun in this dark atmosphere. Be constantly aware of your surroundings, and be on the lookout for enemies suddenly appearing in the darkness. How many days can you last in Huggy Wuggy Shooter?Move - WASD or Arrow keysShoot - Left mouse clickRun - (Hold) ShiftAim - Right mouse buttonSwap weapon - Mouse wheel, or Numeric keys from 1 to 7Reload - Mouse wheelSwap weapon - Mouse wheelKnife attack - FThrow grenade - GHuggy Wuggy Shooter was created by GoGoMan. Play their other game on Poki: Neon Flytron: Cyberpunk RacerHuggy Wuggy Shooter resembles other similar games like Five Nights at Freddy's (FNAF) or Poppy Playtime. You can play this game on your browser on Poki. For more scary games like this, check out our Scary Games section.Huggy Wuggy Shooter is free to play on Poki.Huggy Wuggy Shooter is playable on your computer.

Arknights

now.gg

Play Arknights online for free with now.gg mobile cloud. Arknights is the Strategy game by Yostar where you lead the fight against a dangerous virus that has taken over the world. Work side by side with the dedicated Amiya to recruit and train Operators, then deploy them on missions across the world. Defend the innocent and take down anyone who stands in your way! The fate of Rhodes Island is in your hands. Choose the right Operators for each job, then put together a winning strategy to defeat your enemies in record time. Hundreds of operators are lining up to join your team. All ready and willing to do whatever it takes to protect Rhodes Island. Mix and match them for limitless variety and possibilities!

Papa Louie 3

poki.com

Frozen desserts are attacking the humans! Papa Louie 3: When Sundaes Attack begins at the grand opening of Seaside Freezeria. Due to a strange mishap, ice cream sundaes have become evil and want to kill everyone. Papa's best restaurant workers have been tied up, and now you must help! Just like in Papa Louie 1 and 2, you are armed with professional cooking utensils. Swing your weapons and jump carefully to thwart the frozen foes. Collect coins and health bonuses to survive every level!

Just Park It 11

poki.com

Just Park It 11 is the eleventh installment of the classic car parking series. Drive an enormous truck through narrow streets filled with obstacles and congested traffic. Pass through the traffic without crashing the truck and park at the right spot and complete all the meticulously designed chaotic tracks. Can you prove that you're a real truck driver?Park your vehicle without losing all your health. Brake - Space key Drive - Arrow keysJust Park It 11 is created by Brain Software. Check out their other game Extreme Off Road Cars 3: Cargo on Poki!

Cold Storage

poki.com

Cold Storage is a jumping platformer game created by Nitrome. You play as a yeti who has been captured by a giant and thrown into his deep-freeze larder cave, and your objective is to escape the cave by jumping and swinging on the metal hanging poles. Time your jumps right to collect as many poor snack dudes as you can before your reach the top. This legendary Flash game is back on the web and this time it’s playable on mobile devices, too! Are you ready for this Yeti adventure?Use the WASD or arrow keys to move, jump and hang onto a pole. Jump while facing upwards to go up, and do the opposite to jump down. Reach the finish line at the top to complete the level.Cold Storage was created by Nitrome as a flash game, and later emulated in HTML5 by AwayFL. Play Nitrome's other flash games on Poki: Swindler 2, Avalanche, Final Ninja, Final Ninja Zero, Silly Sausage, Swindler, Coil, Cave Chaos 2, Twin Shot 2, Bad Ice-Cream, Bad Ice-Cream 2, Bad Ice-Cream 3, Cave Chaos, Mutiny, Skywire, Twin Shot, Test Subject Green and Test Subject Blue

Barbershop Inc.

poki.com

Barbershop Inc. is an idle game where you run your own barbershop. You start with a single chair, from which you can grow your own barbershop empire. Start out by upgrading your chair, clipper and comb to earn more money for each haircut. If you make enough, you can buy an extra chair! Unlock new hair styles for your customers, hire a manager to get more people in your shop, and keep growing. Once you've earned enough money, you can even go outside and open a new shop!Barbershop Inc. was created by Zonda Creative Studio, this is their second game on Poki after releasing crane-madness!

Cover Orange: Pirates

poki.com

Cover Orange: Pirates is a puzzle platform game where you must stack objects to cover our orange friends and protect from the impending acid rain. Our citrusy hero is back for more action, but this time we're in deadly waters, surrounded by pirates. Drag every object the game lets you and drop them drop them in a way that forms a shelter over the oranges while the angry cloud passes over them. Don't forget to grab the hidden star in every level! Share Cover Orange: Pirates with family and friends, so you can experience these entertaining puzzles together!Throughout each level, you must place down stage elements to alter the environment and protect oranges from the acid rain of an evil cloud. These stage elements may vary in any way, from a triangular block to spiked balls that destroy ice to the oranges themselves. Use your finger, mouse or keyboard to position the various objects at your disposal, and drop them in a way that forms a shelter over the oranges.Move chest - WASD, Arrow keys or the pointerDrop chest - Space barCover Orange: Pirates was created by Johnny-K. Play their other puzzle platform games on Poki: Cover Orange, Cover Orange: Space, Cover Orange: Journey and Cover Orange: GangstersYou can play Cover Orange: Pirates online without downloading or installing for free using your desktop and mobile devices on Poki.

SpaceUgh!

poki.com

SpaceUgh! is an arcade skill game created by TastyAir. Serving as an homage to the classic Ugh!, this new spaceship controller simulation game offers a chance to play as a futuristic taxi driver who helps astronauts. Explore over 20 levels loaded with obstacles, opponents, power-ups and various strategic items. Spend your earnings on new rockets and upgradeable parts. SpaceUgh! is so exciting that it will sweep you off your feet.Control your rocket holding down the movement buttons and releasing them at the appropriate time.Move - WASD or Arrow KeysSpaceUgh! was created by TastyAir. Play their other games for free on Poki: Electric Highway and Horror Nights Story.

Kate's Cooking Party 2

poki.com

Kate's Cooking Party 2 is the exciting sequel to Kate's Cooking Party, bringing even more restaurant management fun. This time, you can play with your friends! As a friendly server, your goal is to keep customers happy. Take their orders, serve drinks, bring food to the table, clean up, and wash dishes as needed. Challenge your time management skills by completing all the levels solo or team up with friends to complete missions together. Are you ready to join this fun cooking party with your friends?

Just Park It 12

poki.com

Just Park It 12 is the twelfth installment of the classic car parking series. Drive an enormous truck through narrow streets filled with obstacles and congested traffic. Pass through the traffic without crashing the truck, and park at the right spot and complete all the meticulously designed tracks that resemble real-life situations. Can you prove that you are the best at parking vehicles?How to play:Park your vehicle without losing all your health. Brake - Space key Drive - Arrow keysAbout the creator:Just Park It 12 is created by Brain Software. Check out their other games on Poki: Fortride: Open World, Extreme Off Road Cars, Monster Truck Shadow Racer, 2 Player City Racing, Extreme Off Road Cars 3: Cargo and Just Park It 11.

Funny Haircut

poki.com

Funny Haircut is a hairstyling game where you give your customers unique haircuts in your own salon. Wash your customer's hair and get it clean first, then use your professional hairdressing equipment such as curlers, straighteners, dryers, dyes and hairspray to give them a fresh hairdo. The hair physics in this game is so realistic that you will feel like a real hairstylist. We trust you to make your customers look absolutely unrecognizable. Let your hair down and enjoy the hilarious Funny Haircut!Use your mouse cursor to select, drag and move your equipment.Funny Haircut is created by Go Panda Games, an indie developer studio based in South Surabaya, Indonesia. They have many hilarious games like funny-rescue-carpenter, funny-rescue-gardener, Funny Hair Salon, funny-pet-rescue, Funny Nose Surgery, and funny-rescue-zookeeper. They also have the educational cooking game Cooking Korean Lesson and the one-and-only Hipster vs Rockers for fashion fans. Play them all for free on Poki!

Poki Summer Fashion Dress Up

poki.com

Beautify your lady from head to toe in Poki Summer Fashion Dress Up! You will start by choosing a voluminous, fashionable hairdo. Then, you can accessorize with a matching hat. After putting on dazzling jewelry, try on chic outfits. You can change the color of every item!

Apple Worm

poki.com

Get ready for some entangling puzzles in Apple Worm! In each level of this platform puzzle game, you'll have to slither your way to the exit. In order to cross gaps or make your way past obstacles, you'll need to grow your worm. That's where the apples come into play! With each apple you eat, your worm grows longer. This can make getting to new places easier, but beware! Being large also means you can get stuck and once that happens - it's game over! There's 30 challenging levels to complete. Can you make it through them all?

Sudolver

sudolver.app

Solve any sudoku by simply taking a picture with your camera.

Kode.

kodethegame.com

Kode is a daily 4-digit logic puzzle. Inspired by Wordle and Mastermind. Originally built in Flutter, but rebuilt in Preact to make it faster and lighter on the web. No logins, no ads — just one clean challenge a day.

Farm and Mine

poki.com

Farm and Mine is a simulation game that allows you to build and manage your very own farming and mining empire. Begin with a single plot of land and grow crops to feed your villagers, gradually expanding your population and unlocking all kinds of opportunities. The increasing population can bring you new workforces to help you with various tasks like planting, cow husbandry, pumping, house construction, fishing, and more! With unlimited possibilities and the richest resources at your disposal, how big can you grow your thriving town?

Warscrap.io

warscrap.io

Mine resources, gear up, and prepare for epic base defense battles in this free to play, co-op multiplayer third-person shooter, 3D .io Game!

Dungeon Miner

poki.com

Dungeon Miner is a management simulation game created by DrMop. Your late uncle has left you a mine to teach you all about hard work and earn your fortune. Now grab your pickaxe and delve deep into all the areas on your piece of land. Craft new weapons and tools, explore dungeons to find valuables and blueprints, fight creatures, upgrade your gear and embark on an exciting adventure. Dungeon Miner will never get boring as it's laden with rich content and many surprises for you to explore.Navigate - WASD or Arrow keysAttack - E or Space barBackpack - BShow quest - LThrow bomb - QDungeon Miner is created by DrMop. Play their other games on Poki: Monster Mash, Wordy Pop, Brain Dozer, Tri Peaks, Australian Patience, Solitaire Golf, Solitaire Reverse and Wordsmith

Stabfish.io

stabfish.io

IO GAME 2020! You are a deadly marine monster. Stab the enemies and hang their heads on your pike!

Oodlegobs

poki.com

Oodlegobs is a action-platform game made by Nitrome. You control a single gob at start, but you quickly end up with a whole swarm of them. use the power of numbers to make your way through the levels !Controls are explained in-gameThis game was created by Nitrome as a flash game, and later emulated in HTML5 by AwayFL for Poki. Play Nitrome's other flash games on Poki: Swindler 2, Avalanche, Cave Chaos 2, Enemy 585, Silly Sausage, Swindler, Coil, Cold Storage, Twin Shot 2, Bad Ice-Cream, Bad Ice-Cream 2, Bad Ice-Cream 3, Cave Chaos, Mutiny, Skywire, Twin Shot, Test Subject Green and Test Subject Blue

Basket Swooshes

poki.com

Basket Swooshes is a basketball game where you have to make your way through the group stages and win the tournament. Basket Swooshes was created by 10x10games. Pick one of the 32 represented countries from the group stages, and start playing. The first team to score 11 point wins!After winning (or skipping) group stages, the knock-out phase begins. Win every match to earn your spot in the finals.Can you score enough goals to win the Basket Swooshes tournament? Controls: Mouse click - shoot About the creator: Basket Swooshes was created by 10x10games. They are known for their sports games like Footyzag and Penalty Shooters.

Cat's Party

poki.com

Cat's Party is a physics-based skill game where you're a cat alone in the dark city trying to make its way to the safety of other feline companions. There's a cat party at the rooftop and your job is to reach it. Drag and release your cursor or finger to send the cat flying up. Hold on to windowsills, platforms, pipes, and basically anything you can latch on to - and jump higher! Be careful as the way to the top is not a cakewalk: You will face moving obstacles, disappearing platforms, and unfriendly humans who will push you off their balcony. Make sure to pick up the food pieces scattered around so you can buy your cat cool skins! Share Cat's Party with your friends and keep the party alive!Drag and release your cursor or finger to send the cat flying up. Reach the terrace party at the top without falling off.Cat's Party was created by Sakkat Studio. They have many other thinking and management games on Poki: It's Story Time!, Sweet Run, James Gun, Crush It!, Ground Digger, Throw It Higher! and DescentYou can play Cat's Party for free on Poki.Cat's Party can be played on your computer and mobile devices like phones and tablets.

Steve's World

playzen.io

Play Steve's World online for free! Play as fast as you can, explore the game, learn, and unlock your gaming skills. Play now on Playzen and have a fun time.

Melvor Idle

melvoridle.com

A web-based idle/incremental game. Train your skills and conquer Melvor. Inspired by Runescape.

Gunbox.io

gunbox.io

Multiplayer game,Build base,Destory base,make friends, kill enemy skulls ,survive night,upgrade your player,grow your player,make bed,make chests and doors,make turrets,become the beast and get gold crown :)

Chess Advisor

chess-advisor.com

Chess Advisor - Your personal chess coach | Chess helper. Online chess calculator - Set up any position on the board by dragging pieces and press "Get Next Move" button to see next move suggested by the Stockfish chess engine.