8×8 Split-Slate Precision
Place polyominoes across an 8×8 grid with real-time ghost projection and line-completion previews. Clear rows and columns simultaneously to escalate your streak multiplier.
Tallyslate is a high-precision 8×8 spatial block strategy game for iOS and Android engineered for competitive integrity. Clear intersecting lines, chain multi-axis combos, and compete on cross-platform leaderboards where every single placement is deterministically verified.
Every subsystem in Tallyslate—from sub-pixel drag projection to server-side tournament arbitration—is designed around clarity, speed, and provable fairness.
Place polyominoes across an 8×8 grid with real-time ghost projection and line-completion previews. Clear rows and columns simultaneously to escalate your streak multiplier.
Fake scores cannot pollute the Hall of Champions. Every leaderboard submission carries a signed seed and compact move log re-simulated move-by-move on the server.
Enter Daily Blitz, Weekend Masters, and Pro Invitational brackets where every entrant receives the exact same deterministic sequence of pieces.
Escape deadlocked board states using tactical tools: 3×3 Bomb area clearance, Row Laser horizontal sweeps, and Undo Move state rollback.
Play anywhere without an internet connection. Local high scores, coins, and active board sessions persist automatically and sync when connectivity returns.
Zero forced mid-game interstitials. Earn coins through line clears, daily streaks, and tournaments—or choose optional rewarded video ads only when you want extra coins.
Even the Tallyslate mark is a direct diagram of the game's core mechanic: three locked board quadrants paired with a fourth quadrant split into a 224 + 64 + 96 = 384 Verify Bar.
Instead of trusting a client-reported integer score, Tallyslate records a compact sequence of piece placements and booster actions against a 64-bit PRNG seed. Cloud Functions re-simulate the entire game in under 4 milliseconds before writing to the leaderboard.
{
"package": "com.tallyslate.arena",
"seed": 9048172635182941,
"boardSize": 8,
"moves": [
{ "step": 0, "slot": 1, "row": 3, "col": 2 },
{ "step": 1, "slot": 0, "row": 0, "col": 5 },
{ "step": 2, "slot": 2, "row": 6, "col": 1 }
],
"claimedScore": 14820,
"replayVerifierStatus": "VERIFIED_EXACT_MATCH"
}
Built on a 1024 × 1024 master canvas with a 64u structural grid module, the Split-Slate symbol encodes the exact moment a polyomino locks into the fourth quadrant to trigger a line clear and verification pass.
#00E5FF) and Pure White (#FFFFFF) on Slate Navy (#0A0E1A) deliver zero-glare legibility from 16px favicons to high-refresh OLED displays.
Captured directly from the production iOS (SwiftUI + Core Haptics) and Android (Jetpack Compose) releases (v1.0.0).
Answers to common questions about gameplay fairness, offline play, and privacy controls.
ReplayVerifier replays your exact move sequence against the initial seed to verify that every placement was legal and the final score matches to the single point.