checkmate · other-set
Ask PrometheusWalls set by another so that no action within its reach keeps a thing inside its window; the window ends while the thing persists.
Checkmate (noun) means: Walls set by another so that no action within its reach keeps a thing inside its window; the window ends while the thing persists. It emerges from wall, set, action, reach: The opponent's pieces set walls on each square the king could go to and on the one it stands on; a model of the position lists each action and finds each outside the window. The game ends on that reading, and the king is never taken. In the EmergenceLexicon it sits at computed level 15, chaining down to the four foundations (space, time, energy, pattern).
Examples
- A chess game ends at checkmate: the king is attacked and no legal move removes the attack, and the king itself is never captured. chess
Emergence
- an end read from the model before it happens
- a loss in which no part is removed
- power that works by closing each exit at the same time
Chain to foundations
full chain as text (259 steps)
- checkmateL15
- wallL8
- setL9
- actionL4
- reachL13
- keepL5
- insideL5
- windowL7
- changeL1
- persistL1
- powerL14
- modelL9
- timeL0
Neighborhood
Concepts that depend on this one above; what it is built from below.
Used by (1)
Relations
| contrasts-with | smothered-mate.self-set | SETTER other vs self: in smothered mate the closing walls are the king's own pieces |
| contrasts-with | zugzwang.forced | checkmate: no action stays inside the window; zugzwang: actions stay inside, each one worse |
| contrasts-with | doomed.inevitable | doomed: drift reaches the wall later; checkmate: each path already crosses it, so the end is declared now |