Is an endgame with Queen and King vs. two Rooks and King a win for the Queen, a win for the two Rooks, or a draw?
Generally speaking, it's a draw. Most pawnless endgames are drawn, unless one side has a material advantage of more than a minor piece. Either side can win if there are short-term tactics. To check the outcome of a position, you can use an online tablebase. In particular, it's nice to view the longest wins for either side, which are (according to this page) are
[FEN "k2q4/7R/8/8/8/8/8/2K3R1 w - - 0 1"]
(White to move, mate in 29)
[FEN "4r3/8/5Q2/8/5r2/1k6/8/1K6 w - - 0 1"]
(White to move, mate in 49)
Thanks. So its a draw, the game will continue endlessly if either side do not commit a blunder? Aug 28, 2020 at 16:27
1In most cases, yes.– Glorfindel ♦Aug 28, 2020 at 17:04
4If it can take 49 moves to achieve a mate, then I wouldn't describe a failure to find that winning line as a "blunder". Aug 29, 2020 at 7:30
@PrashantAkerkar In the last 50 moves, if no capture has happened and no pawn has been moved, then the players can claim a draw. It is not endless... In the worst case, if neither wants to claim a draw, then it will go on for some more time before a particular position would have been repeated 3 times, which in modern Chess means "draw by repetition".– varunAug 29, 2020 at 8:20
2@varun: Either player can claim a draw after a three-fold repetition; but if neither player wants to claim a draw, they can continue until a five-fold repetition is reached, at which point (under FIDE rules) the game is automatically drawn.– TonyKAug 29, 2020 at 15:32
As ever, it depends.
In general, given adequate king shelter, the rooks have good chances when there are targets to coordinate against.
Could you be a bit more specific?– user24344Sep 2, 2020 at 3:21
Not really. Say the ending is equal pawns and rooks vs. queen. The rooks might coordinate against any pawn to bring about a queen-and-pawn for two-rooks swap, and a (presumably) won pawn ending. And in any position where the side with the queen can't defend a weak pawn with the king, the rooks just team up to take those, yeah? Sep 2, 2020 at 6:12