Members · Prefs · Laboratory · Collections · Openings · Endgames · Sacrifices · History · Search Kibitzing · Kibitzer's Café · Chessforums · Tournament Index · Players · Kibitzing
James Mason vs James Mortimer
Paris (1900), Paris FRA, rd 3, May-23
Tarrasch Defense: Symmetrical Variation (D32)  ·  1-0



explore this opening
find similar games 7 more J Mason/J Mortimer games
PGN: download | view | print Help: general | java-troubleshooting

TIP: You can get computer analysis by clicking the "ENGINE" button below the game.

PGN Viewer:  What is this?
For help with this chess viewer, please see the Olga Chess Viewer Quickstart Guide.

Kibitzer's Corner
Feb-10-16  psmith: Terrible play by Mortimer here, beginning with 29... Rxc1? throwing away the win (instead 29... Re8 30. Rxc8 Qf3+ winning the queen) followed by 30... g3?! throwing away the advantage (instead 30... Qh5 31. Rh1 Qe8) then 38... Kxd5? losing (instead 38... Kf5 with some chances of a draw; after 38... Kxd5 39. Rd1+ Ke6 40. Rxd6+ Kxd6 41. Ba3+ wins a piece).
Premium Chessgames Member
  KEG: I agree with psmith's general assessment of this game: Mortimer should have won (given the extremely weak play early on by Mason) and which Mortimer certainly need not have lost.


Mortimer is the first to break symmetry in this game, but does so in the wrong manner. 9...dxc4 would have maintained equality.

11. exN

An inexplicable move by Mason that is the source of many of his later troubles and that results in his getting an isolated d-pawn and in Mortimer getting a strong e-pawn. It is hard to see why Mason did not just play 11. QxN.

13. cxd5

This should guarantee that Mason gets a weak d-pawn and a bad gsme. There was no need for this. He should simply have played 13. Rc1 or 13. Qe2


No sooner does Mason saddle himself with an isolated d-pawn than Moritmer does the same. 13...Nxd5 was better.

18. h3

Mason was already courting trouble even before this poor move. He should have played 18. g3.


18...Qh4 would have been very strong for Mortimer here. Now, Mason is able (belatedly) to play g3.

20. Kg2?

This should have lost the game for Mason. 20. Qf3 was best.


I agree with the comment by Rosenthal in the Tournament Book that this is "very well played" and gives Black the better--and probably a winning--game.

21. NxN?

This only makes matters worse for Mason. He should have played 21. Bd1.

23. Rfd1?

Now Mason is dead lost. 23. Kh1 was the only chance (other than blunders by Mortimer) to survive.


Mortimer still has a won game after this move, but 23...Bf4 was absolutely crushing (if 24. QxB RxB).


I agree with Rosenthal in the Tournament Book that Mortimer could have won here with 25...f4. In actuality, however, the text is even more decisive than that. Best of all would be the simple 25...RxR.

On almost any line, Mortimer has a win here, whether with the text, with Rosenthal's 25...f4, or with 25...RxR (best). How then did Mortimer manage to lose this game. For the answer to this mystery, see my next post on this game.

Premium Chessgames Member
  KEG: Post II:

As noted in my prior post, Mortimer had a clear win after 25...Qh5. Amazingly enough, and even though Mason committed three serious blunders after 25...Qh5, Mortimer still managed to lose. Here's what happened.

26. g4?

This move, which allows the Black Queen a home at h4, was sheer suicide. 26. h4 was essential (though Mason would still have been lost).

26...fxg4 ?

26...Qh4! was crushing. It is hard to fathom why Mortimer issued this invitation for Mason to gobble up his strong e-pawn.

28. QxB?

Mason had to play 28. RxR first. Leaving himself a Rook on c1 for Mortimer to exploit should have been a recipe for disaster.

29. Ke2?

29. Qg2 was essential. Now, as psmith has shown on this site (but as Rosenthal overlooked in the Tournament Book), Mortimer has a easy win with 29...Re8 (pinning the Queen). Apparently the players and Rosenthal missed what psmith noticed: that the pin remains effective even after 30. RxR since Mortimer could then have played 30...Qf3+. In short, Mason's Queen is hanging here.

Bravo psmith for spotting this!


As noted above, Mortimer had an immediate win of the Queen and of the game here with 29...Re8! But, even after this blunder, Mortimer still had a won game.


Only now is Mortimer's win gone. psmith has correctly noted that Mortimer should have played 30...Qh5. But I disagree with his overall assessment of the position after 30...Qh5. Black still would have had a win had he played psmith's excellent suggested move. After 30...Qh5 31. Rh1 (the reply given by both Rosenthal in the Tournament Book and by psmith in his otherwise fabulous comments on this game), the killing response by Black would be 31...Bh2! rather than 31...Re8, though even that should yield Black a win. After 30...Qh5, 31. Qe6+ would be best, but I still do not see how Mason would have saved the game.

In any case, I certainly agree that 30...g3? was a blunder after which Mortimer no longer had any advantage. But he certainly should not have lost this position.


The beginning of further troubles for Mortimer. 31...Qc8 was best.

34. Qf3+

Mason throws away most of his advantage after this move. 34. fxg3 was much better.


After this, Mortimer is lost. My guess is that Mortimer saw ghosts here. The simple 37...Bxg3 yields a nearly equal game. Mortimer probably feared 38. Rg1, but then 38...Rh8! saves the day for Black.

38. d5+

A pretty move by Mason which wins the game. The idea of setting up a skewer on the a3-f8 diagonal is fascinating. Mortimer did not see what Mason was doing until it was too late.

38... Kxd5?

As psmith correctly states, Mortimer's only chance here was 38...Kf5 (much better than 39...Kf7 as suggested by Rosenthal in the Tournament Book).

39. Rd1+

My guess is only now did Mortimer notice the skewer combination Mason had hatched up. Mortimer could have resigned at this point.

An interesting sidelight is that Mason still had a chance to go wrong even after 39. Rd1+. Had Mortimer played 39...Kc5 the tempting 40. RxB loses to the intermediate move 40...Re8+. Presumably, however, Mason would have played (if 39. Kc5) 40. Ba3+ after which it is game over.


Now there is no way for Mason to go wrong.

40. Rxd6

Mortimer decided to play on though down a piece in the endgame!

Mortimer did manage to win a piece after Mason allowed him to set up a pin on the g-file, but after 48...RxB 49. RxR+ KxR, the King-and-pawn endgame was an obvious win for Mason, and Mortimer finally gave up on move 51.

NOTE: Create an account today to post replies and access other powerful features which are available only to registered users. Becoming a member is free, anonymous, and takes less than 1 minute! If you already have a username, then simply login login under your username now to join the discussion.

Please observe our posting guidelines:

  1. No obscene, racist, sexist, or profane language.
  2. No spamming, advertising, duplicate, or gibberish posts.
  3. No vitriolic or systematic personal attacks against other members.
  4. Nothing in violation of United States law.
  5. No cyberstalking or malicious posting of negative or private information (doxing/doxxing) of members.
  6. No trolling.
  7. The use of "sock puppet" accounts to circumvent disciplinary action taken by moderators, create a false impression of consensus or support, or stage conversations, is prohibited.

Please try to maintain a semblance of civility at all times.

Blow the Whistle

See something that violates our rules? Blow the whistle and inform a moderator.

NOTE: Please keep all discussion on-topic. This forum is for this specific game only. To discuss chess or this site in general, visit the Kibitzer's Café.

Messages posted by Chessgames members do not necessarily represent the views of, its employees, or sponsors.
All moderator actions taken are ultimately at the sole discretion of the administration.

This game is type: CLASSICAL. Please report incorrect or missing information by submitting a correction slip to help us improve the quality of our content.

Featured in the Following Game Collections[what is this?]
Round Three, Replayed Game
from Paris 1900 by suenteus po 147
Round Three, Replayed Game
from Paris 1900 by JoseTigranTalFischer

Home | About | Login | Logout | F.A.Q. | Profile | Preferences | Premium Membership | Kibitzer's Café | Biographer's Bistro | New Kibitzing | Chessforums | Tournament Index | Player Directory | Notable Games | World Chess Championships | Opening Explorer | Guess the Move | Game Collections | ChessBookie Game | Chessgames Challenge | Store | Privacy Notice | Contact Us

Copyright 2001-2021, Chessgames Services LLC