{"formatVersion":1,"title":"Play 2048 Lite — three scripted strategies","gamesPerStrategy":1000,"seedPrefix":"tips-2026-09","boardSize":"4×4","measuredOn":"2026-09-05","totalGames":3000,"seedPattern":"tips-2026-09:<strategy id>:<index from 0 to 999>","results":[{"id":"random","label":"Random swipes","blurb":"A valid direction chosen at random every move — swiping with no plan at all.","medianScore":1050,"reached":{"256":6.8,"512":0,"1024":0,"2048":0}},{"id":"twoDirections","label":"Two directions only","blurb":"Always left, then down, using up or right only when neither is legal.","medianScore":2394,"reached":{"256":50.1,"512":5.6,"1024":0,"2048":0}},{"id":"cornerSnake","label":"Corner + snake, one move ahead","blurb":"Every move scored on how well it keeps the biggest tile cornered and the row below it ordered, looking one move further before committing.","medianScore":7148,"reached":{"256":96.7,"512":78.1,"1024":32.7,"2048":1.5}}],"method":{"boardSize":4,"target":2048,"spawnValues":{"2":0.9,"4":0.1},"moveLimit":20000,"stopCondition":"No legal moves, or the move limit. Play continues after reaching 2048.","directionOrder":["left","down","up","right"],"cornerSnake":"Score candidate boards along a bottom-left snake. Weights halve from 32768 to 1 along the snake; add 512 per empty cell. For each legal move, evaluate the board and each possible next move, without their spawned tiles. Pick the largest score, breaking ties in direction order.","sampling":"Each strategy uses its own deterministic seed stream. These are separate samples, not paired games on identical spawns.","percentageUnit":"Percent of runs reaching at least the specified tile; rounded to one decimal place."},"limitations":["These are scripted-agent outcomes, not measured human win rates.","The corner-and-snake agent is a limited heuristic, not an optimal solver.","The comparison combines corner weighting, ordered tiles, empty-space preference and lookahead; it does not isolate the causal effect of one habit.","This download contains aggregate results, not individual results for all 3,000 games."],"winningReplay":"/data/2048-winning-replay.json"}