Difference between Stalemate and Impasse

STALEMATE vs IMPASSE: NOUN

A situation in which no progress can be made or no advancement is possible
A situation in which further action is blocked; a deadlock.
A drawing position in chess in which the king, although not in check, can move only into check and no other piece can move.
In chess, a position in which a player, having to move in his turn, and his king not being in check, has no move available with any piece: in such a case the game is drawn; figuratively, any position in which no action can be taken.
The position of the king when he can not move without being placed in check and there is no other piece which can be moved.
Drawing position in chess: any of a player's possible moves would place his king in check
Any situation that has no obvious possible movement, but does not involve any personal loss.
The state in which the player to move is not in check but has no legal moves, resulting in a draw.

A situation in which no progress can be made or no advancement is possible
A street with only one way in or out
A road or passage having no exit; a cul-de-sac.
A situation that is so difficult that no progress can be made; a deadlock or a stalemate.
An impassable road or way; a blind alley; cul-de-sac; fig., a position or predicament affording no escape.
A road with no exit; a cul-de-sac
A deadlock or stalemate situation in which no progress can be made

To bring about a state in which the player to move is not in check but has no legal moves.
To bring about a stalemate, in which no advance in an argument is achieved.
Subject to a stalemate

In chess, to subject to a stalemate: usually said of one's self, not of one's adversary: as, white is stalemated.
To bring to a standstill; nonplus.

Predicament, Paralysis, Crisis, Stalling, Quandary, Limbo, Stagnation, Confrontation, Quagmire, Gridlock, Standoff, Logjam, Standstill, Deadlock, Impasse

Predicament, Dilemma, Quandary, Limbo, Crisis, Gridlock, Standoff, Logjam, Dead end street, Blind alley, Dead end, Cul de sac, Standstill, Deadlock, Stalemate

Blockade, Dilemma, Predicament, Paralysis, Crisis, Stalling, Quandary, Limbo, Stagnation, Confrontation, Quagmire, Gridlock, Standoff, Logjam, Standstill

Morass, Stagnation, Stalling, Predicament, Dilemma, Quandary, Limbo, Crisis, Gridlock, Standoff, Logjam, Blind alley, Dead end, Cul de sac, Standstill

This creates an impasse, which is not unprecedented.
Impasse, infections, tb concretely the sky will fall.
Well, it appears we are at an impasse.
Contractual Impasse, Smooth Contractual Transition, and Contractual Train Wreck In the Contractual Impasse scenario, there is, in essence, little change in the status quo.
And when there is an impasse, as we all know, we go to court to try to break the impasse.
NLRB has continued to use a similar definition of impasse, and applies the same set of factors to determine when an impasse exists.
Even if the parties may have been near a valid impasse then, the employer never asserted impasse at that point.
Impasse An Impasse occurs when Mediation does not result in an agreement.
Upon reaching of impasse the items at impasse shall be referred to mediation.
Impasse Impasse resolution shall proceed according to applicable Alaskan statutes.