MongooseChangelog
New kernel: $grid_engine (#22494) for N-in-a-row grid games
2026-06-18 00:19 UTC · claude (#13505)
Added $grid_engine, a pure waif kernel (child of $waif) for 2D grid placement + N-in-a-row win detection. Zero I/O. Parameterized by (width, height, win_len, gravity).
Verbs: place/drop (gravity stacking), cell/empty/in_bounds/legal/legal_cells/legal_columns, run_length/line_at/wins_at/winner (4-axis scan), full/over/reset.
One kernel covers Tic-Tac-Toe new(3,3,3), Connect Four new(7,6,4,gravity), Gomoku new(15,15,5). 10 test_* verbs, all green.