If you’re anything like me, you’ve probably been tearing your hair out trying to figure out how to get that elusive Checkmate achievement in Marvel Rivals’ 18v18 Annihilation mode. I spent hours getting shot at, blown up, and generally frustrated while trying to solve this chess puzzle in the middle of absolute chaos. But don’t worry – I’ve cracked the code, and I’m here to share everything I learned so you can get this achievement without the same headache.
Marvel Rivals introduced the 18v18 Annihilation mode as part of their first anniversary update, and let me tell you – it’s exactly as wild as it sounds. Thirty-six players battling it out on the Grand Garden map creates an environment that’s pure, unadulterated chaos. The Checkmate achievement is part of the Chronoverse Saga objectives, tasking you with “triggering one checkmate in the Grand Garden.” Completing this nets you 5 achievement points toward free Units, which makes it totally worth the effort.
What makes this achievement particularly tricky is that you can only complete it during public matches on the Grand Garden map in 18v18 mode. No custom games, no other maps – it has to be this specific combination, which means you might spend some time just waiting for the right map to pop up in rotation.
I’ll be honest with you – when I first jumped into 18v18 Annihilation, I felt completely overwhelmed. The sheer number of players, abilities flying everywhere, and constant action had me questioning my life choices. But there’s something exhilarating about it too. The scale is unlike anything else in Marvel Rivals, and the Grand Garden map is absolutely stunning with its chess-themed design.
What keeps me coming back is that perfect blend of frustration and triumph. When you finally solve that chess puzzle while 35 other players are trying to murder each other (and you) around you? That feeling is unmatched. It’s like finding a moment of peace and strategy in the middle of a warzone, and honestly, that’s pretty much the essence of what makes Marvel Rivals so great.
Alright, let’s get down to business. Here’s exactly how I finally managed to trigger that checkmate and get my achievement:
First things first – you need to queue up for 18v18 Annihilation mode and pray you get the Grand Garden map. There’s no way to guarantee which map you’ll get, so you might need to play a few matches before Grand Garden pops up. Remember, only public matches count – custom games won’t give you the achievement, no matter how perfectly you solve the puzzle.
This is where I made my biggest mistakes early on. You want a hero with good mobility and ranged attacks. My top recommendations based on what worked for me:
Trust me, trying this with a melee hero is asking for trouble. I learned that the hard way after getting shredded multiple times while trying to get close to the pieces.
Once you’re in the match, head to the middle of the Grand Garden map. Look for the large central structure with what looks like a water tower. Enter through that side, and you’ll find an elevator that takes you down to an underground area. Follow the corridor forward, and you’ll emerge in the chess area with giant pieces on elevated platforms.
You’ll know you’re in the right place when you see Gambit standing on a high platform overlooking the board. It’s pretty hard to miss once you know where to look.
Here’s the moment of truth – the exact order to hit the chess pieces. I can’t stress enough how important it is to follow this sequence precisely:
Each piece will glow when it’s targetable, and you’ll know you’ve done it right when grass appears at the base of the platform. If a piece stops glowing or won’t respond, someone else probably hit it out of order, and you’ll need to reset.
Let me save you some frustration here – someone will mess up the puzzle. With 35 other players running around, it’s practically guaranteed. When this happens (and it will), head back down to the underground area and look for a regular-sized chessboard on the floor. There’s a reset button there that’ll snap all the pieces back to their starting positions.
I probably reset the puzzle a dozen times in my first successful attempt. Patience is key here.
Once you’ve moved all the pieces in the correct order, something magical happens. The platforms shift, revealing a hidden room below, and a floating walkway appears connecting Gambit’s platform to the other side of the board. Jump down into that newly revealed room, and inside you’ll find a chessboard displaying a checkmate position.
This is what triggers the achievement. Just entering the room after solving the puzzle correctly is what you need.
Whatever you do, don’t quit the match early. I almost made this mistake after triggering the achievement, thinking I was done. You need to stay until the match ends for the achievement to register properly. Trust me, it’s worth waiting those extra few minutes to make sure all your hard work pays off.
While we’re talking about hero selection, let me share some more detailed thoughts on which characters work best for this specific challenge:
| Hero | Mobility | Ranged Capability | Survivability | Overall Rating |
|---|---|---|---|---|
| Angela | Excellent | Excellent | Good | A+ |
| Human Torch | Excellent | Excellent | Fair | A |
| Gambit | Good | Excellent | Fair | A- |
| Storm | Excellent | Good | Good | B+ |
| Iron Man | Excellent | Excellent | Poor | B |
| Black Widow | Fair | Excellent | Poor | C+ |
The key is finding that sweet spot between mobility (to escape danger), ranged capability (to hit the pieces safely), and survivability (to actually stay alive long enough to complete the puzzle).
As of March 2026, Marvel Rivals is in Season 5, which introduced the 18v18 Annihilation mode and the Grand Garden map. The anniversary update brought several new achievements, including our Checkmate achievement, as part of the Chronoverse Saga.
The developers have been pretty active with balance patches, so keep an eye on the official patch notes for any changes that might affect hero viability or map mechanics. The 18v18 mode is currently positioned as a casual experience, similar to Marvel Zombies, so you don’t have to worry about competitive ranking while working on this achievement.
After spending way too much time on this achievement, I’ve picked up some strategies that aren’t obvious from the basic guides:
Try to attempt the puzzle during quieter moments in the match. Right after a big team fight has wiped out nearby players is usually your best window. I found that waiting for the initial spawn rush to die down gave me the best chance of working in peace.
The chess area has lots of cover opportunities. Don’t just stand out in the open hitting pieces – use the platforms and structures to break line of sight from enemies. I spent way too much time as a sitting duck before I learned to use the environment to my advantage.
If you’re on voice chat, let your team know what you’re doing. Most players are actually pretty cool about it once they understand you’re working on an achievement. I had several teammates start watching my back once I explained what I was doing.
The grass rings at the base of correctly placed pieces are your best friend. They’re the game’s way of telling you “yes, you did this part right.” If you don’t see grass, keep hitting that piece until you do.
Before you start hitting pieces, identify where you’ll run if enemies show up. I always keep an eye on multiple escape routes – usually involving dropping down to the lower level or using hero mobility abilities.
Q: Can I get this achievement in custom matches? A: Unfortunately not. The achievement only counts in public 18v18 Annihilation matches on the Grand Garden map.
Q: What happens if I die while working on the puzzle? A: Don’t worry! The puzzle progress saves as long as you don’t reset it. Just respawn and head back to continue where you left off.
Q: How long does the whole process take? A: Once you know what you’re doing, actually solving the puzzle only takes a couple of minutes. The real time investment is getting into the right match and dealing with other players.
Q: Can multiple people get the achievement in the same match? A: Yes! Once the puzzle is solved, anyone who enters the hidden room before the match ends should get the achievement.
Q: What if the pieces won’t respond when I hit them? A: This usually means someone else already moved that piece out of order. Head to the underground reset button and start over.
Q: Do I need to win the match for the achievement? A: Nope! You just need to complete the puzzle and enter the hidden room, then stay until the match ends – victory isn’t required.
Getting the Checkmate achievement in Marvel Rivals’ 18v18 mode might seem daunting at first, but with the right approach, it’s totally manageable. The key is patience, the right hero choice, and knowing exactly what to do. I won’t lie – you’ll probably get frustrated a few times, but that moment when you finally trigger the checkmate and see that achievement pop makes it all worthwhile.
Remember, this is supposed to be fun! Even when you’re getting shot at and the puzzle keeps getting reset by well-meaning (or trolling) teammates, try to enjoy the chaos. After all, that’s what makes Marvel Rivals so special – those moments of strategy and triumph in the middle of absolute mayhem.
Now get out there, queue up for some 18v18 action, and show that chessboard who’s boss. And hey, if you see someone else working on the puzzle, maybe cut them some slack – we’re all just trying to get those sweet, sweet achievement points!
For more Marvel Rivals strategies and hero guides, check out our Marvel Rivals Hero Tier List to stay on top of the meta, or our complete season dates guide to never miss an update. Good luck, and I’ll see you on the Grand Garden!
