PUZZLE COLLECTION

Hexa Stack Chain Reaction Puzzles

Practice timed clears and chain gates in Hexa Stack. Browse the exact campaign maps that ask you to connect more than one clear.

Play the first puzzle

What makes these puzzles different?

A chain is built during one placement: a clear exposes another matching top run, which can clear again before the move ends. These maps reward reading buried colors before placing the next stack.

How to approach them

Check the top and the next visible color on each occupied stack. Preserve an empty landing cell beside the colors that must meet, then place the stack that can trigger both clears in order.

Play 61 matching levels

Each level opens its own playable board and a tip based on that puzzle.

Level 4: Color UnderneathTrigger the first exposed-color continuation. Reach 30 points across 3 colors. The opening includes a 3-layer blue stack at 1,0.Level 31: Double SparkCreate two clears in one placement to open the center. Reach 100 points across 7 colors. This board has 2-clear chain lock at 0,0. The opening includes a 11-layer blue stack at 1,0.Level 32: Twin RelayUse one double clear to release two distant landing cells. Reach 110 points across 8 colors. This board has 2-clear chain lock at -3,1, 2-clear chain lock at 3,-1. The opening includes a 11-layer blue stack at -1,0.Level 33: Chromatic RelayOpen one route with a double clear and another with a yellow clear. Reach 110 points across 8 colors. This board has 2-clear chain lock at 0,0, yellow color lock at -2,2. The opening includes a 11-layer blue stack at 1,0.Level 34: Three SignalsCoordinate score, color, and chain locks across one junction. Reach 120 points across 9 colors. This board has 30-point lock at -2,1, orange color lock at 1,-1, 2-clear chain lock at 3,-1. The opening includes a 7-layer yellow stack at -3,1.Level 35: Triple CrownTrigger a three-clear chain while managing every earlier lock type. Reach 130 points across 9 colors. This board has 10-point lock at -2,1, 2-clear chain lock at 0,1, 3-clear chain lock at 3,-1, orange color lock at 2,-1. The opening includes a 12-layer red stack at -3,1.Level 46: Crown RelayUse one double clear to open the crowned center. Reach 110 points across 8 colors. This board has 2-clear chain lock at 0,0. The opening includes a 11-layer blue stack at 1,0.Level 47: Wing RelayRelease a wing tip with a chain while earning the opposite landing by score. Reach 120 points across 8 colors. This board has 2-clear chain lock at -3,1, 20-point lock at 2,0. The opening includes a 11-layer blue stack at -1,0.Level 48: Arc RelayOpen the arc center with a chain and its lower end with yellow. Reach 120 points across 9 colors. This board has 2-clear chain lock at 0,0, yellow color lock at -1,2. The opening includes a 11-layer blue stack at 1,0.Level 49: Crossroads RelayCoordinate a chain unlock with two score milestones. Reach 130 points across 9 colors. This board has 2-clear chain lock at -2,2, 10-point lock at 0,0, 30-point lock at 2,0. The opening includes a 11-layer blue stack at -1,0.Level 50: Twin CrownSend a double-clear signal to two opposite locks. Reach 130 points across 9 colors. This board has 2-clear chain lock at 0,0, 2-clear chain lock at 3,-1. The opening includes a 11-layer blue stack at 1,0.Level 51: Wing in OrderClear yellow before the double-clear signal can open the wing hub. Reach 120 points across 8 colors. This board has ordered 2-signal lock at 0,0. The opening includes a 11-layer blue stack at 1,0.Level 56: Final CrownUse each earlier gate type across the open crown. Reach 120 points across 9 colors. This board has 10-point lock at 0,0, yellow color lock at -3,1, 2-clear chain lock at 3,-1. The opening includes a 11-layer blue stack at 1,0.Level 57: Final ArcBalance an ordered red-chain gate with a separate score route. Reach 130 points across 9 colors. This board has ordered 2-signal lock at 0,0, 20-point lock at -1,2. The opening includes a 11-layer blue stack at 1,0.Level 58: Final CrossroadsOpen an ordered yellow-score route and a separate chain landing. Reach 130 points across 9 colors. This board has ordered 2-signal lock at 0,0, 2-clear chain lock at 2,0. The opening includes a 11-layer blue stack at -1,0.Level 59: Twin Wing FinaleFinish two different ordered gates across the split wings. Reach 140 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -3,1. The opening includes a 11-layer blue stack at 1,0.Level 60: Sixty-Stack SummitComplete three complementary gate routes on the full crossroads. Reach 140 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -2,2, 40-point lock at 2,0. The opening includes a 11-layer blue stack at -1,0.Level 66: Crown DetourUse one double clear to open the crowned center. Open the outer landing as the score grows. Reach 130 points across 8 colors. This board has 2-clear chain lock at 0,0, 30-point lock at -3,2. The opening includes a 11-layer blue stack at 1,0.Level 67: Wing BeaconRelease a wing tip with a chain while earning the opposite landing by score. Open the outer landing as the score grows. Reach 130 points across 8 colors. This board has 2-clear chain lock at -3,1, 20-point lock at 2,0, 30-point lock at -3,2. The opening includes a 11-layer blue stack at -1,0.Level 68: Arc BeaconOpen the arc center with a chain and its lower end with yellow. Open the outer landing as the score grows. Reach 130 points across 9 colors. This board has 2-clear chain lock at 0,0, yellow color lock at -1,2, 30-point lock at -3,1. The opening includes a 11-layer blue stack at 1,0.Level 69: Crossroads BeaconCoordinate a chain unlock with two score milestones. Open the outer landing as the score grows. Reach 140 points across 9 colors. This board has 2-clear chain lock at -2,2, 10-point lock at 0,0, 30-point lock at 2,0, 30-point lock at -3,2. The opening includes a 11-layer blue stack at -1,0.Level 70: Double CrownSend a double-clear signal to two opposite locks. Open the outer landing as the score grows. Reach 140 points across 9 colors. This board has 2-clear chain lock at 0,0, 2-clear chain lock at 3,-1, 30-point lock at -3,2. The opening includes a 11-layer blue stack at 1,0.Level 71: Ordered WingClear yellow before the double-clear signal can open the wing hub. Open the outer landing as the score grows. Reach 130 points across 8 colors. This board has ordered 2-signal lock at 0,0, 30-point lock at -3,2. The opening includes a 11-layer blue stack at 1,0.Level 76: Crown PerimeterUse each earlier gate type across the open crown. Open the outer landing as the score grows. Reach 120 points across 9 colors. This board has 10-point lock at 0,0, yellow color lock at -3,1, 2-clear chain lock at 3,-1, 30-point lock at -3,2. The opening includes a 11-layer blue stack at 1,0.Level 78: Crossroads PerimeterOpen an ordered yellow-score route and a separate chain landing. Open the outer landing as the score grows. Reach 140 points across 9 colors. This board has ordered 2-signal lock at 0,0, 2-clear chain lock at 2,0, 30-point lock at -3,2. The opening includes a 11-layer blue stack at -1,0.Level 79: Twin Wing PassageFinish two different ordered gates across the split wings. Open the outer landing as the score grows. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -3,1, 30-point lock at -3,2. The opening includes a 11-layer blue stack at 1,0.Level 80: Outer SummitComplete three complementary gate routes on the full crossroads. Open the outer landing as the score grows. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -2,2, 40-point lock at 2,0, 30-point lock at -3,2. The opening includes a 11-layer blue stack at -1,0.Level 86: Crown ReserveUse one double clear to open the crowned center. Open the outer two landings as the score grows. Reach 150 points across 8 colors. This board has 2-clear chain lock at 0,0, 50-point lock at -3,2, 70-point lock at 2,0. The opening includes a 11-layer blue stack at 1,0.Level 87: Wing ReserveRelease a wing tip with a chain while earning the opposite landing by score. Open the outer two landings as the score grows. Reach 150 points across 8 colors. This board has 2-clear chain lock at -3,1, 20-point lock at 2,0, 50-point lock at -3,2, 70-point lock at 3,-1. The opening includes a 11-layer blue stack at -1,0.Level 88: Arc ReserveOpen the arc center with a chain and its lower end with yellow. Open the outer two landings as the score grows. Reach 150 points across 9 colors. This board has 2-clear chain lock at 0,0, yellow color lock at -1,2, 50-point lock at -3,1, 70-point lock at 3,-1. The opening includes a 11-layer blue stack at 1,0.Level 89: Crossroads ReserveCoordinate a chain unlock with two score milestones. Open the outer two landings as the score grows. Reach 150 points across 9 colors. This board has 2-clear chain lock at -2,2, 10-point lock at 0,0, 30-point lock at 2,0, 50-point lock at -3,2, 70-point lock at 3,0. The opening includes a 11-layer blue stack at -1,0.Level 90: Double ReserveSend a double-clear signal to two opposite locks. Open the outer two landings as the score grows. Reach 150 points across 9 colors. This board has 2-clear chain lock at 0,0, 2-clear chain lock at 3,-1, 50-point lock at -3,2, 70-point lock at 2,0. The opening includes a 11-layer blue stack at 1,0.Level 91: Last WingClear yellow before the double-clear signal can open the wing hub. Open the outer two landings as the score grows. Reach 150 points across 8 colors. This board has ordered 2-signal lock at 0,0, 50-point lock at -3,2, 70-point lock at 3,-1. The opening includes a 11-layer blue stack at 1,0.Level 96: Crown FinaleUse each earlier gate type across the open crown. Open the outer two landings as the score grows. Reach 150 points across 9 colors. This board has 10-point lock at 0,0, yellow color lock at -3,1, 2-clear chain lock at 3,-1, 50-point lock at -3,2, 70-point lock at 2,0. The opening includes a 11-layer blue stack at 1,0.Level 97: Arc FinaleBalance an ordered red-chain gate with a separate score route. Open the outer two landings as the score grows. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, 20-point lock at -1,2, 50-point lock at -3,1, 70-point lock at 3,-1. The opening includes a 11-layer blue stack at 1,0.Level 99: Century Twin WingsFinish two different ordered gates across the split wings. Open the outer two landings as the score grows. Reach 160 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -3,1, 50-point lock at -3,2, 70-point lock at 3,-1. The opening includes a 11-layer blue stack at 1,0.Level 100: Century SummitComplete three complementary gate routes on the full crossroads. Open the outer two landings as the score grows. Reach 160 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -2,2, 40-point lock at 2,0, 50-point lock at -3,2, 70-point lock at 3,0. The opening includes a 11-layer blue stack at -1,0.Level 106: Upper BridgePreserve a landing along the upper bridge for the next clear. Reach 140 points across 8 colors. This board has 2-clear chain lock at 0,0, 30-point lock at -3,2, 20-point lock at 0,-3. The opening includes a 11-layer blue stack at 1,0.Level 107: Diagonal ExitBuild through the diagonal branch and keep a second exit open. Reach 140 points across 8 colors. This board has 2-clear chain lock at -3,1, 20-point lock at 2,0, 30-point lock at -3,2, 30-point lock at -3,0. The opening includes a 11-layer blue stack at -1,0.Level 108: Right ForkTime the right fork with the existing ordered unlocks. Reach 140 points across 9 colors. This board has 2-clear chain lock at 0,0, yellow color lock at -1,2, 30-point lock at -3,1, 30-point lock at 2,1, 60-point lock at 1,-2. The opening includes a 11-layer blue stack at 1,0.Level 109: Lower BranchRelease the lower-left branch after the score threshold. Reach 150 points across 9 colors. This board has 2-clear chain lock at -2,2, 10-point lock at 0,0, 30-point lock at 2,0, 30-point lock at -3,2, 30-point lock at -3,3. The opening includes a 11-layer blue stack at -1,0.Level 110: Center ReturnFinish the lower-right approach while protecting the center. Reach 150 points across 9 colors. This board has 2-clear chain lock at 0,0, 2-clear chain lock at 3,-1, 30-point lock at -3,2, 30-point lock at 0,3, 60-point lock at 0,-2. The opening includes a 11-layer blue stack at 1,0.Level 111: Offset CrossingCompare the left holding space with the gated right exit before choosing a landing. Reach 130 points across 8 colors. This board has ordered 2-signal lock at 0,0, 30-point lock at -3,2, 20-point lock at 4,-2. The opening includes a 11-layer blue stack at 1,0.Level 116: Narrow BridgeHold the narrow left bridge for a later color reveal. Reach 120 points across 9 colors. This board has 10-point lock at 0,0, yellow color lock at -3,1, 2-clear chain lock at 3,-1, 30-point lock at -3,2, 30-point lock at 2,-2. The opening includes a 11-layer blue stack at 1,0.Level 118: Right SweepOpen the right sweep while preserving an inner recovery cell. Reach 140 points across 9 colors. This board has ordered 2-signal lock at 0,0, 2-clear chain lock at 2,0, 30-point lock at -3,2, 30-point lock at 4,0. The opening includes a 11-layer blue stack at -1,0.Level 119: Twin DetoursThe two detours compete for space around the center. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -3,1, 30-point lock at -3,2, 30-point lock at 4,-2, 60-point lock at 1,-2. The opening includes a 11-layer blue stack at 1,0.Level 120: Far LandingTime the far right landing after the first score milestone. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -2,2, 40-point lock at 2,0, 30-point lock at -3,2, 30-point lock at 4,-2. The opening includes a 11-layer blue stack at -1,0.Level 126: Hold the SpurTry holding a mismatched stack while opening the lower pocket. Reach 130 points across 8 colors. This board has ordered 2-signal lock at 0,0, 30-point lock at -3,2, 20-point lock at 4,-2, 20-point lock at 0,2, 50-point lock at -2,2, 20-point lock at -1,2. The opening includes a 11-layer blue stack at 1,0. Save one stack in the reserve slot, then place it later.Level 128: Saved ColorKeep a matching top color for the return route. Reach 140 points across 9 colors. This board has ordered 2-signal lock at 0,0, 2-clear chain lock at 2,0, 30-point lock at -3,2, 30-point lock at 4,0. The opening includes a 11-layer blue stack at -1,0. Save one stack in the reserve slot, then place it later.Level 129: Second OpeningUse the reserve slot to change the order of a crowded opening. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -3,1, 30-point lock at -3,2, 30-point lock at 4,-2, 70-point lock at -2,2, 70-point lock at 1,-2. The opening includes a 11-layer blue stack at 1,0. Save one stack in the reserve slot, then place it later.Level 130: Reserve CrossingSave a stack for the crossing after the red and score gates separate. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -2,2, 40-point lock at 2,0, 30-point lock at -3,2, 30-point lock at 4,-2. The opening includes a 11-layer blue stack at -1,0. Save one stack in the reserve slot, then place it later.Level 131: Two ExitsSave a stack for the gated exit while using the open side to build score. Reach 130 points across 8 colors. This board has ordered 2-signal lock at 0,0, 30-point lock at -3,2, 20-point lock at 4,-2, 30-point lock at 4,-3, 70-point lock at -3,3, 40-point lock at -3,1. The opening includes a 11-layer blue stack at 1,0. Save one stack in the reserve slot, then place it later.Level 136: Saved BridgeKeep the new left landing clear for a stack brought back from reserve. Reach 120 points across 9 colors. This board has 10-point lock at 0,0, yellow color lock at -3,1, 2-clear chain lock at 3,-1, 30-point lock at -3,2, 30-point lock at 2,-2, 30-point lock at 4,-1. The opening includes a 11-layer blue stack at 1,0. Save one stack in the reserve slot, then place it later.Level 138: Side CrossingBuild through the crossing before spending the reserved stack. Reach 140 points across 9 colors. This board has ordered 2-signal lock at 0,0, 2-clear chain lock at 2,0, 30-point lock at -3,2, 30-point lock at 4,0, 30-point lock at 4,-1. The opening includes a 11-layer blue stack at -1,0. Save one stack in the reserve slot, then place it later.Level 139: Late LandingOpen the farther landing and then release the held stack there. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -3,1, 30-point lock at -3,2, 30-point lock at 4,-2, 30-point lock at 3,-3, 70-point lock at 2,-2, 50-point lock at 1,-1. The opening includes a 11-layer blue stack at 1,0. Save one stack in the reserve slot, then place it later.Level 156: Outer FractureClear the outer landing before committing to the narrow inner route. Reach 120 points across 9 colors. This board has 10-point lock at 0,0, yellow color lock at -3,1, 2-clear chain lock at 3,-1, 30-point lock at -3,2, 30-point lock at 2,-2. The opening includes a 11-layer blue stack at 1,0. The fragile landing at -1,-1 closes when a clear empties it.Level 158: Closing JunctionKeep the central crossing available after the upper temporary cell falls. Reach 140 points across 9 colors. This board has ordered 2-signal lock at 0,0, 2-clear chain lock at 2,0, 30-point lock at -3,2, 30-point lock at 4,0. The opening includes a 11-layer blue stack at -1,0. The fragile landing at 0,1 closes when a clear empties it.Level 159: Vanishing ForkChoose a side of the fork before the first clear removes the left approach. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -3,1, 30-point lock at -3,2, 30-point lock at 4,-2, 40-point lock at 0,2, 30-point lock at 0,-1. The opening includes a 11-layer blue stack at 1,0. The fragile landing at -1,0 closes when a clear empties it.Level 160: Last CrossingFinish through the second opening after the left landing collapses. Reach 150 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at -2,2, 40-point lock at 2,0, 30-point lock at -3,2, 30-point lock at 4,-2. The opening includes a 11-layer blue stack at -1,0. The fragile landing at -1,1 closes when a clear empties it.Level 189: Chain Relay ReserveSave the reserve for the crossing where a chain signal and a yellow signal unlock separate exits. Reach 170 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at 2,0, 30-point lock at -3,2, 20-point lock at 3,-2, 40-point lock at 4,-3, 30-point lock at -2,2, 20-point lock at -3,1. The opening includes a 11-layer blue stack at 1,0. Save one stack in the reserve slot, then place it later. The fragile landing at -1,-1 closes when a clear empties it.Level 194: Split Chain ReturnCoordinate the delayed left pocket with the two central sequence locks. Reach 170 points across 9 colors. This board has ordered 2-signal lock at 0,0, ordered 2-signal lock at 2,0, 30-point lock at -3,2, 20-point lock at 3,-2, 40-point lock at 4,-3, 30-point lock at -2,2, 20-point lock at -3,1, 30-point lock at -4,1, 60-point lock at 0,1, 20-point lock at -2,0. The opening includes a 11-layer blue stack at 1,0. Save one stack in the reserve slot, then place it later. The fragile landing at -1,-1 closes when a clear empties it.

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Frequently asked question

Does a chain gate open after two unrelated moves?

No. Its required clears must occur in the same placement chain. The gate label shows the chain count it needs.