# A Thirsty Array Guide 2026 - Complete Puzzle Solution | Arknights Endfield > A Thirsty Array guide for Arknights Endfield. Array spraying puzzle solution, laser numbering sequence, and chest locations with video guide. Source: https://endfieldhub.org/guides/a-thirsty-array Published: 2026-03-29 Updated: 2026-03-29 Array Spraying Puzzle, Laser Numbering Sequence & Chest Locations Last updated: 2026-03-29 Complete walkthrough for Arknights Endfield's A Thirsty Array Protocol Space puzzle from Delver of the Cryptic. Learn the array spraying mechanic: locate the main array map showing red array positions, then spray 3 arrays (1st, 2nd, 3rd) on corresponding locations. Solve the laser numbering puzzle by following the sequence from 1 and looping back to 1\. Includes video walkthrough, detailed screenshots of all arrays, laser sequence, and chest locations, step-by-step instructions, FAQ, and interactive checklist for this permanent Protocol Space challenge. ## 🔢Video Walkthrough Watch the video above for a complete visual walkthrough of the array spraying puzzle, laser numbering sequence, and all chest locations. ## ⚡TL;DR - Quick Solution * 1. **Video intro:** Watch for complete overview * 2. **Array spraying:** Match 3 arrays to red positions on main map * 3. **Laser numbering:** Follow 1→loop back to 1 * 4. **Collect chests:** All 3 locations shown in images ## Contents ## What Is A Thirsty Array? A Thirsty Array is a **Protocol Space challenge** introduced in Arknights Endfield's Delver of the Cryptic update. It's a multi-stage puzzle challenge that tests your observation and pattern-matching skills. The challenge consists of two main puzzle mechanics: **array spraying** (matching arrays to reference positions) and **laser numbering** (following a numbered sequence). After solving these puzzles, you'll collect 3 chests scattered throughout the area. ### Key Points * • Multi-stage puzzle with array spraying and laser numbering * • Use the main array map as reference for spray locations * • Match 3 arrays to red positions shown in the main map * • Laser puzzle: follow numbered sequence from 1, loop back to 1 * • 3 chests to collect after completing puzzles * • First clear rewards include Oroberyls and materials ## Step 1: Video Introduction The video walkthrough above provides a complete visual guide for solving A Thirsty Array. It's self-explanatory and shows all puzzle mechanics, array locations, and chest positions. ### Recommended Approach Watch the video first for a complete overview, then use this written guide as a reference for specific puzzle mechanics and chest locations. The video shows the exact routes and timing for optimal completion. ## Step 2: Array Spraying Puzzle The first major puzzle in A Thirsty Array involves **spraying arrays** on specific locations. You need to match 3 arrays to their corresponding positions based on a reference map. ![A Thirsty Array main array map showing red array positions](https://endfieldhub.org/images/guides/a-thirsty-array/mainarray.webp) **Main Array Map** \- Reference image showing red array positions to match **The Solution:** The main array map (shown above) displays the reference positions in **red**. You need to find 3 arrays scattered throughout the area and spray each one on the location that corresponds to these red positions. ![A Thirsty Array 1st array to spray](https://endfieldhub.org/images/guides/a-thirsty-array/array1.webp) **1st Array** ![A Thirsty Array 2nd array to spray](https://endfieldhub.org/images/guides/a-thirsty-array/secondarray.webp) **2nd Array** ![A Thirsty Array 3rd array to spray](https://endfieldhub.org/images/guides/a-thirsty-array/thirdarray.webp) **3rd Array** **Steps to Complete:** 1. 1. Locate the main array map reference (shown above with red positions) 2. 2. Find the 1st array in the area and spray it on the corresponding red position 3. 3. Find the 2nd array and spray it on its matching red position 4. 4. Find the 3rd array and spray it on its matching red position 5. 5. Once all 3 arrays are correctly placed, the path forward will unlock ### Pro Tip Take a screenshot or keep the main array reference visible while you search for the 3 arrays. This will help you quickly identify where each array needs to be sprayed without backtracking. ## Step 3: Laser Numbering Puzzle After completing the array spraying puzzle, you'll encounter a **laser numbering section**. This puzzle requires you to follow a specific numbered sequence. ![A Thirsty Array laser numbering section with numbered sequence](https://endfieldhub.org/images/guides/a-thirsty-array/lasersection.webp) **Laser Numbering Section** \- Follow the numbered sequence from 1, loop back to 1 **The Solution:** The laser section displays numbered positions (shown in the image above). Start at position **1**, follow through the numbered sequence in order, then **loop back to 1** to complete the puzzle and unlock the next path. ### Sequence Reminder The key is to **start at 1 and loop back to 1**. Make sure you complete the full cycle - starting the loop is important but returning to 1 is what actually unlocks the path forward. ## Chest Locations There are **3 chests** to collect in A Thirsty Array. Their locations are shown below. For exact positioning and routes, refer to the video walkthrough at the top of this guide. ![A Thirsty Array chest 1 location](https://endfieldhub.org/images/guides/a-thirsty-array/chest1.webp) **Chest 1** ![A Thirsty Array chest 2 location](https://endfieldhub.org/images/guides/a-thirsty-array/chest2.webp) **Chest 2** ![A Thirsty Array chest 3 location](https://endfieldhub.org/images/guides/a-thirsty-array/chest3.webp) **Chest 3** ### Collection Tips Some chests may be locked behind puzzle completion. Make sure to solve the array spraying and laser numbering puzzles first. The video walkthrough shows the optimal route to collect all 3 chests efficiently. ## Rewards Completing A Thirsty Array provides valuable first-clear rewards as part of the Delver of the Cryptic Protocol Spaces: ### Oroberyls Premium gacha currency for recruiting operators ### Credits In-game currency for upgrades and purchases ### Materials Circuit Boards, Crystallized Materials, and more ## Quick Reference Checklist ## Frequently Asked Questions ### How do I solve the array puzzle in A Thirsty Array? To solve the array puzzle in A Thirsty Array, first locate the main array map which shows red array positions. You need to find 3 arrays (1st, 2nd, and 3rd) and spray each one on the location that corresponds to the red arrays shown in the main array reference image. This will unlock the path forward. ### What is the laser numbering sequence in A Thirsty Array? After completing the array spraying puzzle, you'll encounter a laser numbering section. Follow the numbered sequence starting from 1, then continue through the numbers in order and loop back to 1\. This sequence will unlock the next path in the Protocol Space. ### Where are the chests located in A Thirsty Array? There are 3 chests in A Thirsty Array. Their exact locations are shown in the video walkthrough and reference images (chest1.png, chest2.png, chest3.png). The chests are typically found after completing puzzle sections or along the main path through the Protocol Space. ### Is A Thirsty Array part of Delver of the Cryptic? Yes, A Thirsty Array is a Protocol Space challenge included in the Delver of the Cryptic permanent content update in Arknights Endfield. It offers first-clear rewards including Oroberyls, Credits, and upgrade materials. ### Do I need to fight enemies in A Thirsty Array? A Thirsty Array focuses primarily on puzzle-solving mechanics including array spraying and laser numbering sequences. The challenge requires observation and puzzle-solving skills rather than combat.