Echo Gap

Two Ns echo and vanish when they are exactly N cells apart. Echo Gap is a calm-but-tricky number puzzle about distance. Drop tiles numbered 2 to 5 into the board. When two equal numbers sit exactly that many cells apart in a row or column, they echo and disappear. Tiles fall, new gaps open, and a single smart drop can set off a chain. EASY TO LEARN, DEEP TO MASTER • One rule you learn in ten seconds: a 3 needs exactly 3 cells. • Echo lines show where your tile will land and which numbers it will reach. • Chains multiply your score — and every chain sends an Echo Shock through the gap. KEEP THE BOARD ALIVE • Every few moves a pressure row pushes the board up, faster and faster. • Stones arrive later — break them by catching them inside an echo. • Fill Resonance to earn a Hammer, a Tremor or a Hush when you need a rescue. • Second Wind saves you once per run. PLAY YOUR WAY • Classic 7×9 for quick runs. • Wide 8×11 unlocks at 5,000 points for longer runs and bigger chains. • Daily Challenge: the same sequence for everyone, every day. • Combo multipliers, gold tiles and risky Edge bonuses for high scores. MADE FOR EVERYONE • Plays offline, no account needed. • English and Vietnamese. • Colour-blind friendly tiles, reduce-motion option, haptics and sound you can switch off. • Plays great on iPad and large screens. Echo Gap is free and supported by ads suitable for all ages. You can choose to watch an ad to continue a run, or remove ads with a one-time purchase — continuing a run is then always free.