Stack beliefs. Revise truth values. Clear lines when truth converges.
📊 Current Belief
Frequency (f)
0.50
Confidence (c)
0.50
Score
0
Lines Cleared
0
Inference Chains
0
📋 Next Belief
f=0.50, c=0.50
How to Play: Use arrow keys (or WASD) to move and rotate. Each piece carries a truth value (f, c).
Green pieces are positive evidence (high f), red pieces are negative evidence (low f), purple pieces are neutral.
When you complete a line, NAL truth revision combines all evidence in that row. If the revised truth reaches an extreme (f > 0.95 or f < 0.05 with c > 0.85), the line clears with bonus points.
Stack pieces with similar f values to build inference chains — adjacent blocks with compatible truth values chain together for extra score.
The NAL revision formula: w = c/(1-c), f_new = (w1*f1 + w2*f2)/(w1+w2), c_new = (w1+w2)/(w1+w2+1).