Known Unknowns – Monte Carlo (1902)

We begin with a 2002 quote from Donald Rumsfeld, former Secretary of Defense of the US :

Reports that say that something hasn’t happened are always interesting to me, because as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don’t know we don’t know. And if one looks throughout the history of our country and other free countries, it is the latter category that tend to be the difficult ones.[1]

From Wiki https://en.wikipedia.org/wiki/There_are_known_knowns

With this in mind we turn our attention back to chess, specifically to <Monte Carlo (1902)> tournament:

http://www.chessgames.com/perl/chess.pl?tid=79267 and also here

http://www.edochess.ca/batgirl/MonteCarlo1902.html (another fine Batgirl production!)

From the <CG> intro:

It should be noted that 25 games are omitted from this collection because the scores are incomplete or have never been recovered.

I don’t like the phrasing here since saying that the 25 games were “omitted” implies they could have been included. Well, I suppose that is the case for the incomplete scores. But what about the truly missing games?

I’d like to think that <CG> could be a definitive source for all such matters, and the inclusion of incomplete scores via stubs would provide valuable documentation on exactly what is and isn’t available. (<CG> should focus on such game-centric details, whereas Sarah does an outstanding job on the historical and cultural aspects).

So the 25 games are the “Known Unknowns”. But do we really know the Unknown knowns? As <thomastonk> asks:

Aug-09-13 thomastonk: I would like to know which games are missing. Does a list of these games already exist?

The job here is to determine what games are truly missing. For me, I’d like to create stubs for these games to obtain an accurate record of the tournament in PGN. There is a problem which must immediately be mentioned. <Monte Carlo (1902)> used a baroque scoring system in an “modified”-RR where a first pairing draw only scored 1/4 point and had to be replayed with colors reversed. Then the replayed game only counted for 1/2 the usual scoring, i.e. a reversed-color win was worth 1/2, a draw 1/4, and a loss 0.

This complicated scoring system seems to imply that I will not be able to accurately reproduce the leaderboards, no matter how cleverly I try. C’est la guerre.

Nonetheless, let’s try to attack <thomastonk>’s question. The original round assignments were done by <suenteus po 147> who utilizes a good nomenclature for labeling the rounds: Rn, means no replay needed, Rn.1 and Rn.2 means Rn.1 was a draw which got replayed in the Rn.2 game.

The tournament consists of 20-players, or 10-pairings/round.

Let’s look at the games <CG> has:

>>> rr(t)  # w hand-editing

Monte Carlo (1902)

1094521  1902.02.03   A84  58  (R1.1)   =    Marshall -- Albin
1094520  1902.02.05   A06  55  (R1.2)  1-0   Albin -- Marshall
1099347  1902.02.03   D05  37  (R1.1)   =    Schlechter -- Teichmann
1099221  1902.02.05   C73  68  (R1.2)   =    Teichmann -- Schlechter
1036534  1902.02.03   C50  45  (R1)    1-0   Chigorin -- Tarrasch
1054757  1902.02.03   C10  20  (R1)    1-0   Janowski -- Gunsberg
1094226  1902.02.03   C42  33  (R1)    1-0   Maroczy -- Pillsbury
1099219  1902.02.03   C25  69  (R1)    1-0   Mieses -- Mortimer
1099220  1902.02.03   C43  58  (R1)    1-0   Napier -- Eisenberg
1099222  1902.02.03   C41  36  (R1)    1-0   Popiel -- Marco
1099223  1902.02.03   C79  34  (R1)    1-0   Wolf -- Reggio

1099348  1902.02.04   C67  51  (R2.1)   =    Wolf -- Pillsbury
1099227  1902.02.05   E00  36  (R2.2)  1-0   Pillsbury -- Wolf
1099224  1902.02.04   C41  51  (R2)    0-1   Eisenberg -- Marco
1064619  1902.02.04   D67  62  (R2)    1-0   Janowski -- Mortimer
1094522  1902.02.04   D08  67  (R2)    1-0   Marshall -- Tarrasch
1099225  1902.02.04   B23  22  (R2)    1-0   Mieses -- Albin
1099226  1902.02.04   C10  41  (R2)    0-1   Napier -- Gunsberg
1099229  1902.02.04   C43  38  (R2)    0-1   Popiel -- Teichmann
1099230  1902.02.04   D02  31  (R2)    1-0   Scheve -- Mason
1099228  1902.02.04   D37  33  (R2)    1-0   Schlechter -- Reggio

1064621  1902.02.06   C78  48  (R3.1)   =    Maroczy -- Janowski
1064620  1902.02.08   D53  37  (R3.2)   =    Janowski -- Maroczy
1099349  1902.02.06   C42  51  (R3.1)   =    Mason -- Napier
1099234  1902.02.08   C65  32  (R3.2)  0-1   Napier -- Mason
1099350  1902.02.06   D53  48  (R3.1)   =    Pillsbury -- Teichmann
1099236  1902.02.08   C67  41  (R3.2)   =    Teichmann -- Pillsbury
1099352  1902.02.06   D02  35  (R3.1)   =    Scheve -- Reggio
1099235  1902.02.08   C01  52  (R3.2)   =    Reggio -- Scheve
1099351  1902.02.06   C67  39  (R3.1)   =    Tarrasch -- Gunsberg
1099233  1902.02.08   C77  54  (R3.2)  0-1   Gunsberg -- Tarrasch
1099231  1902.02.06   C65  51  (R3)    1-0   Albin -- Mortimer
1099232  1902.02.06   B24  54  (R3)    0-1   Chigorin -- Popiel
1094523  1902.02.06   D31  28  (R3)    1-0   Marshall -- Schlechter
1507592  1902.02.06   B40  35  (R3)    0-1   Wolf -- Mieses

1099353  1902.02.07   B45  66  (R4.1)   =    Napier -- Albin
1099237  1902.02.08   B22  34  (R4.2)  1-0   Albin -- Napier
1099238  1902.02.07   C11  55  (R4)    1-0   Eisenberg -- Reggio
1054756  1902.02.07   D00  42  (R4)    0-1   Gunsberg -- Teichmann
1064612  1902.02.07   D08  33  (R4)    1-0   Janowski -- Tarrasch
1099239  1902.02.07   C65  61  (R4)    1-0   Marco -- Mortimer
1094230  1902.02.07   C00  31  (R4)    1-0   Maroczy -- Scheve
1094524  1902.02.07   D07  20  (R4)    1-0   Marshall -- Chigorin
1109232  1902.02.07   B58  48  (R4)    0-1   Popiel -- Pillsbury
1099240  1902.02.07   C41  57  (R4)    1-0   Wolf -- Mason

1099354  1902.02.10   C44  54  (R5.1)   =    Eisenberg -- Teichmann
1099246  1902.02.12   C77  42  (R5.2)  1-0   Teichmann -- Eisenberg
1099355  1902.02.10   C42  60  (R5.1)   =    Maroczy -- Mason
1099242  1902.02.12   A13  45  (R5.2)   =    Mason -- Maroczy
1064622  1902.02.10   C82  78  (R5)    1-0   Janowski -- Albin
1099241  1902.02.10   B01  24  (R5)    0-1   Marco -- Gunsberg
1099243  1902.02.10   C26  36  (R5)    0-1   Mieses -- Tarrasch
1099244  1902.02.10   C65  30  (R5)    1-0   Napier -- Mortimer
1099247  1902.02.10   C44  58  (R5)    0-1   Popiel -- Reggio
1099248  1902.02.10   D02  51  (R5)    1-0   Scheve -- Chigorin
1099245  1902.02.10   D40  23  (R5)    0-1   Schlechter -- Pillsbury

1064624  1902.02.11   D50  87  (R6.1)   =    Janowski -- Eisenberg
1064623  1902.06.12   C84  30  (R6.2)  0-1   Eisenberg -- Janowski
1099356  1902.02.11   C26  53  (R6.1)   =    Mieses -- Gunsberg
1099250  1902.02.12   B45  30  (R6.2)   =    Gunsberg -- Mieses
1099357  1902.02.11   D55  30  (R6.1)   =    Schlechter -- Marco
1099251  1902.02.12   C78  31  (R6.2)   =    Marco -- Schlechter
1099358  1902.02.11   C78  76  (R6.1)   =    Wolf -- Teichmann
1099254  1902.02.12   C79  14  (R6.2)   =    Teichmann -- Wolf
1099249  1902.02.11   C30  94  (R6)    1-0   Chigorin -- Albin
1099252  1902.02.11   C14  56  (R6)    1-0   Maroczy -- Reggio
1094525  1902.02.11   D43  38  (R6)    1-0   Marshall -- Mortimer
1099253  1902.02.11   D32  54  (R6)    0-1   Mason -- Pillsbury
1099255  1902.02.11   C44  32  (R6)    1-0   Popiel -- Napier

1094527  1902.02.13   D37  69  (R7.1)   =    Marshall -- Eisenberg
1094526  1902.02.15   C42  32  (R7.2)  0-1   Eisenberg -- Marshall
1099360  1902.02.13   B24  51  (R7.1)   =    Mieses -- Popiel
1099259  1902.02.15   B45  45  (R7.2)  0-1   Popiel -- Mieses
1099361  1902.02.13   C42  61  (R7.1)   =    Tarrasch -- Albin
1099256  1902.02.15   B23  67  (R7.2)   =    Albin -- Tarrasch
1099362  1902.02.13   B30  31  (R7.1)   =    Wolf -- Napier
1099258  1902.02.15   C78  60  (R7.2)  1-0   Napier -- Wolf
1036535  1902.02.13   C00  41  (R7)    1-0   Chigorin -- Gunsberg
1099257  1902.02.13   C41  61  (R7)    1-0   Maroczy -- Marco
1099359  1902.02.13   D32  30  (R7)     =    Mason -- Teichmann
1099260  1902.02.13   D02  23  (R7)    0-1   Scheve -- Pillsbury
1064618  1902.02.13   D31  23  (R7)    1-0   Schlechter -- Janowski

1099363  1902.08.14   C26  52  (R8.1)   =    Mieses -- Eisenberg
1099262  1902.02.15   D02  45  (R8.2)  1-0   Eisenberg -- Mieses
1099261  1902.02.14   C65  37  (R8)    1-0   Chigorin -- Mortimer
1064625  1902.02.14   A84  24  (R8)    1-0   Janowski -- Popiel
1099263  1902.02.14   C78  82  (R8)    1-0   Maroczy -- Teichmann
1054766  1902.02.14   D06  53  (R8)    0-1   Marshall -- Gunsberg
1099264  1902.02.14   A22  59  (R8)    1-0   Mason -- Reggio
1099266  1902.02.14   D02  79  (R8)    0-1   Scheve -- Tarrasch
1099265  1902.02.14   D05  31  (R8)    1-0   Schlechter -- Napier
1099267  1902.02.14   C41  35  (R8)    1-0   Wolf -- Marco

1099268  1902.02.17   C50  43  (R9)    1-0   Albin -- Eisenberg
1099269  1902.02.17   C55  39  (R9)    0-1   Chigorin -- Wolf
1094528  1902.02.17   C42  39  (R9)    1-0   Maroczy -- Marshall
1099270  1902.02.17   A22  55  (R9)    1-0   Mason -- Mieses
1099271  1902.02.17   C12  86  (R9)    0-1   Mortimer -- Gunsberg
1099272  1902.02.17   C15  27  (R9)    1-0   Pillsbury -- Napier
1099273  1902.02.17   C41  34  (R9)    0-1   Reggio -- Marco
1099275  1902.02.17   D02  39  (R9)    0-1   Scheve -- Teichmann
1099274  1902.02.17   B34  64  (R9)    1-0   Tarrasch -- Popiel

1036536  1902.02.18   B01  73  (R10.1)   =    Chigorin -- Maroczy
1099278  1902.02.19   C65  37  (R10.2)   =    Maroczy -- Chigorin
1099276  1902.02.18   D05  62  (R10)    0-1   Albin -- Popiel
1099277  1902.02.18   C77  29  (R10)    1-0   Gunsberg -- Scheve
1094529  1902.02.18   A21  25  (R10)    0-1   Mason -- Marshall
1099279  1902.02.18   C50  21  (R10)    1-0   Mortimer -- Eisenberg
1064626  1902.02.18   D31  75  (R10)    1-0   Pillsbury -- Janowski
1099280  1902.02.18   C44  45  (R10)    0-1   Reggio -- Napier
1121042  1902.02.18   C96  65  (R10)    1-0   Tarrasch -- Schlechter
1099282  1902.02.18   C24  21  (R10)    1-0   Teichmann -- Marco

1099364  1902.02.20   C70  77  (R11.1)   =    Marco -- Albin
1099283  1902.02.22   A06  35  (R11.2)  1-0   Albin -- Marco
1099365  1902.02.20   D08  45  (R11.1)   =    Napier -- Tarrasch
1099288  1902.02.22   C67  35  (R11.2)   =    Tarrasch -- Napier
1099366  1902.02.20   C42  33  (R11.1)   =    Schlechter -- Mason
1099286  1902.02.22   D40  45  (R11.2)  0-1   Mason -- Schlechter
1099284  1902.02.20   C42  44  (R11)    1-0   Eisenberg -- Pillsbury
1099285  1902.02.20   C77  30  (R11)    1-0   Gunsberg -- Reggio
1094530  1902.02.20   D37  19  (R11)    1-0   Marshall -- Scheve
1228478  1902.02.20   C28  53  (R11)    0-1   Mieses -- Chigorin
1099289  1902.02.20   C49  38  (R11)    1-0   Teichmann -- Mortimer
1094225  1902.02.20   B40  44  (R11)    0-1   Wolf -- Maroczy

1099367  1902.02.21   C79  41  (R12.1)   =    Gunsberg -- Pillsbury
1099292  1902.02.22   D21  46  (R12.2)  1-0   Pillsbury -- Gunsberg
1036538  1902.02.21   D02  69  (R12.1)   =    Janowski -- Chigorin
1099290  1902.12.22   C77  63  (R12.2)  0-1   Chigorin -- Janowski
1099368  1902.02.21   B32  27  (R12.1)   =    Marco -- Tarrasch
1099294  1902.02.22   C41  29  (R12.2)  1-0   Tarrasch -- Marco
1099369  1902.02.21   D08  69  (R12.1)   =    Teichmann -- Albin
1094531  1902.02.21   C25  54  (R12)    1-0   Mieses -- Marshall
1099291  1902.02.21   C11  29  (R12)    0-1   Mortimer -- Reggio
1099295  1902.02.21   C43  29  (R12)    0-1   Popiel -- Mason
1099293  1902.02.21   C11  37  (R12)    1-0   Schlechter -- Maroczy
1099296  1902.02.21   C14  34  (R12)    1-0   Wolf -- Scheve

1099371  1902.02.24   C01  23  (R13.1)   =    Mieses -- Schlechter
1099300  1902.02.26   D05  31  (R13.2)   =    Schlechter -- Mieses
1099297  1902.02.24   C65  47  (R13)    1-0   Chigorin -- Eisenberg
1094227  1902.02.24   C11  34  (R13)    1-0   Maroczy -- Napier
1094532  1902.02.24   D63  43  (R13)    1-0   Marshall -- Popiel
1099370  1902.02.24   A34  44  (R13)     =    Mason -- Marco
1099299  1902.02.24   C12  31  (R13)    1-0   Pillsbury -- Reggio
1099302  1902.02.24   A44  40  (R13)    0-1   Scheve -- Albin
1099301  1902.02.24   C80  34  (R13)    1-0   Tarrasch -- Mortimer
1064628  1902.02.24   C78  82  (R13)    0-1   Wolf -- Janowski

1099372  1902.02.25   C77  50  (R14.1)   =    Gunsberg -- Wolf
1099306  1902.02.26   C10  20  (R14.2)  1-0   Wolf -- Gunsberg
1099303  1902.02.25   D37  33  (R14)    0-1   Eisenberg -- Schlechter
1099304  1902.02.25   B45  46  (R14)    0-1   Mortimer -- Maroczy
1064629  1902.02.25   C78  59  (R14)    1-0   Napier -- Janowski
1099305  1902.02.25   C23  32  (R14)    0-1   Popiel -- Scheve
1036539  1902.02.25   C77  29  (R14)    0-1   Reggio -- Chigorin
1094533  1902.02.25   C63  39  (R14)    0-1   Teichmann -- Marshall

1099313  1902.03.01   B22  30  (R15.2)  1-0   Wolf -- Popiel
1099307  1902.02.27   A06  45  (R15)    0-1   Albin -- Pillsbury
1099308  1902.02.27   B44  42  (R15)    0-1   Eisenberg -- Maroczy
1099309  1902.02.27   C12  71  (R15)    0-1   Gunsberg -- Mason
1036540  1902.02.27   C78  55  (R15)    0-1   Marco -- Chigorin
1094534  1902.02.27   C31  64  (R15)    0-1   Napier -- Marshall
1099311  1902.02.27   B40  15  (R15)    0-1   Reggio -- Tarrasch
1099312  1902.02.27   D37  24  (R15)    1-0   Schlechter -- Scheve

1099374  1902.02.28   C49  30  (R16.1)   =    Teichmann -- Napier
1099317  1902.03.01   C78  48  (R16.2)  0-1   Napier -- Teichmann
1099373  1902.02.28   C50  64  (R16)     =    Albin -- Schlechter
1099314  1902.02.28   C50  51  (R16)    1-0   Gunsberg -- Eisenberg
1099315  1902.02.28   B06  36  (R16)    1-0   Marco -- Scheve
1036541  1902.02.28   D45  34  (R16)    0-1   Mason -- Chigorin
1099316  1902.02.28   B34  31  (R16)    0-1   Mortimer -- Popiel
1099318  1902.02.28   D08  34  (R16)    1-0   Pillsbury -- Mieses
1099319  1902.02.28   C22  65  (R16)    0-1   Reggio -- Janowski
1099320  1902.02.28   C77  37  (R16)    1-0   Tarrasch -- Wolf

1099375  1902.03.03   C23   2  (R17.1)   =    Popiel -- Schlechter
1099326  1902.03.05   D37  33  (R17.2)  1-0   Schlechter -- Popiel
1099321  1902.03.03   C77  48  (R17)    1-0   Gunsberg -- Maroczy
1099322  1902.03.03   D02  48  (R17)    1-0   Janowski -- Scheve
1094535  1902.03.03   C63  40  (R17)    1-0   Marco -- Marshall
1099324  1902.03.03   B44  23  (R17)    1-0   Napier -- Mieses
1099325  1902.03.03   C78  29  (R17)    1-0   Pillsbury -- Tarrasch
1099327  1902.03.03   D31  99  (R17)    1-0   Teichmann -- Chigorin

1099376  1902.03.04   D31  52  (R18.1)   =    Pillsbury -- Chigorin
1036542  1902.03.07   C50  56  (R18.2)  1-0   Chigorin -- Pillsbury
1064630  1902.02.04   C78  43  (R18)    0-1   Marco -- Janowski
1099328  1902.03.04   B40  58  (R18)    0-1   Albin -- Maroczy
1099329  1902.03.04   C42  28  (R18)    0-1   Gunsberg -- Schlechter
1099330  1902.03.04   C55  23  (R18)    0-1   Mortimer -- Wolf
1099331  1902.03.04   C67  22  (R18)    1-0   Napier -- Scheve
1094536  1902.03.04   C22  24  (R18)    0-1   Reggio -- Marshall
1099332  1902.03.04   C80  24  (R18)    1-0   Tarrasch -- Mason
1099333  1902.03.04   D32  41  (R18)    1-0   Teichmann -- Mieses

1099377  1902.03.06   A00  56  (R19.1)   =    Maroczy -- Mieses
1099336  1902.03.08   B18  39  (R19.2)  0-1   Mieses -- Maroczy
1099378  1902.03.06   D10  26  (R19.1)   =    Pillsbury -- Marco
1099335  1902.03.08   C67  52  (R19.2)  1-0   Marco -- Pillsbury
1099334  1902.03.06   C65  41  (R19)    0-1   Albin -- Gunsberg
1036543  1902.03.06   C50  57  (R19)    1-0   Chigorin -- Schlechter
1094537  1902.03.06   D00  24  (R19)    0-1   Marshall -- Wolf
1064609  1902.03.06   C78  65  (R19)    1-0   Mason -- Janowski

1064631  1902.03.10   D02  63  (R20)    1-0   Janowski -- Marshall
1099339  1902.03.10   C56  43  (R20)    0-1   Mortimer -- Pillsbury
1099340  1902.03.10   C51  38  (R20)    1-0   Napier -- Chigorin
1099343  1902.03.10   B40  33  (R20)    0-1   Popiel -- Maroczy
1099341  1902.03.10   C12  57  (R20)    0-1   Reggio -- Albin
1099342  1902.03.10   C67  41  (R20)    1-0   Teichmann -- Tarrasch

1099380  1902.03.11   C14  35  (R21.1)   =    Tarrasch -- Maroczy
1099345  1902.03.12   C67  37  (R21.2)   =    Maroczy -- Tarrasch
1099344  1902.03.11   C58  30  (R21)    0-1   Albin -- Wolf
1099379  1902.03.11   A82  46  (R21)     =    Gunsberg -- Popiel
1094538  1902.03.11   C12  33  (R21)    1-0   Pillsbury -- Marshall
1099346  1902.03.11   B40  36  (R21)    0-1   Reggio -- Mieses
1064632  1902.03.11   C78  50  (R21)    0-1   Teichmann -- Janowski

The compound Round numbered games should come in pairs, and all draw games should have compound round numbers.

So R7 is missing color-reverse R7.2 <Teichmann-Mason>,  R12 is missing the color-reversed R12.2 <Albin-Teichmann>, R13 is missing color-reversed R13.2 <Marco–Mason>,  R15.1 original pairing <Popiel–Wolf> is missing,  R16.2 color-reversed <Schlechter–Albin> is missing, and R21.2 color-reversed <Popiel–Gunsberg> is missing.

Let’s put all that in a table:

R7.2  <Teichmann-Mason>
R12.2 <Albin-Teichmann>
R13.2 <Marco--Mason>
R15.1 <Popiel--Wolf> 
R16.2 <Schlechter--Albin> 
R21.2 <Popiel--Gunsberg>

A lot easier to read. That makes five games. Of course, I really should just stop here, because a 20-RR shouldn’t have R20 or R21. Let me avoid rather obvious problem for the moment and soldier on. [Update – ah, this is really a 22-RR with two dropouts!]

Then I wrote the fallowing few lines of code to look for missing players within a given round of the tournament, deliberately only looking at R1-R21. When only two players are spit out they must be a missing pairing (update- or maybe a double byes) – though we don’t know the colors:

R1   Mason // Scheve
R2   Chigorin // Maroczy
R3   Eisenberg // Marco
R4   Mieses // Schlechter
R5   Marshall // Wolf
R6   Scheve // Tarrasch
R7   Mortimer // Reggio
R8   Albin // Pillsbury
R9   Janowski // Schlechter
R10  Mieses // Wolf
R11  Janowski // Popiel
R12  Eisenberg // Napier
R13  Gnusberg // Teichmann
R14
R15
R16  Maroczy // Marshall
R17
R18  Eisenberg // Popiel
R19
R20
R21

R14  3-pairings
R15  2-pairings 
R17  2-pairings 
R19  4-pairings
R20  4-pairings
R21  4-pairing

I get 34 missing pairings to go along with the 5 previous, for a total of 39 missing games. Hmm… what’s going on? Ah, reading the intro a little more closely I see that two-players dropped out, most likely after the pairing schedule was drawn up and published. The tournament would thus have 21-rounds, and a double bye each round but one! Might this account for some of the supposed missing games? It would give one-bye pairing/round, or would account for 21 missing games. So 39-21 = 18.

But of course, a missing pairing might represent more than one game, since the first draw must be replayed. So 25 missing games could still be possible. But determining them is difficult.

It’s my first look at the topic, but you can match the missing pairing counts/round against a quick visual count of the games in the big listing above (remember Rn.1/2 doublets count as 1-pairing, and there should be 10-pairings/round).

So maybe the known unknowns are themselves somewhat unknown?

Let’s list the multiple-missing-pairings:

Missing R14: 10506 Pillsbury, Harry Nelson
Missing R14: 10510 Tarrasch, Siegbert
Missing R14: 18641 Albin, Adolf
Missing R14: 10002 Marco, Georg
Missing R14: 10426 Mason, James
Missing R14: 21823 Mieses, Jacques

Missing R17: 10594 Wolf, Heinrich
Missing R17: 39147 Eisenberg, Louis R
Missing R17: 18641 Albin, Adolf
Missing R17: 10008 Mortimer, James
Missing R17: 28903 Reggio, Arturo
Missing R17: 10426 Mason, James

Missing R19: 39147 Eisenberg, Louis R
Missing R19: 39143 Scheve, Theodor von
Missing R19: 10510 Tarrasch, Siegbert
Missing R19: 27118 Napier, William Ewart
Missing R19: 10008 Mortimer, James
Missing R19: 28903 Reggio, Arturo
Missing R19: 10524 Teichmann, Richard
Missing R19: 10504 Popiel, Ignatz von

Missing R20: 10594 Wolf, Heinrich
Missing R20: 10503 Schlechter, Carl
Missing R20: 12808 Gunsberg, Isidor
Missing R20: 39147 Eisenberg, Louis R
Missing R20: 39143 Scheve, Theodor von
Missing R20: 10002 Marco, Georg
Missing R20: 10426 Mason, James
Missing R20: 21823 Mieses, Jacques

Missing R21: 10016 Chigorin, Mikhail
Missing R21: 10503 Schlechter, Carl
Missing R21: 39147 Eisenberg, Louis R
Missing R21: 39143 Scheve, Theodor von
Missing R21: 10002 Marco, Georg
Missing R21: 27118 Napier, William Ewart
Missing R21: 10008 Mortimer, James
Missing R21: 10426 Mason, James

And for the coders amongst us:

D = {}
for g in TG[t]:
   if g.id[-2] not in D: D[ g.id[-2] ] = g.White
   if g.id[-1] not in D: D[ g.id[-1] ] = g.Black

for r in xrange(1,22):
   GR = [ g for g in TG[t] 
          if g.Round == str(r) or g.Round.startswith( "%d." % r ) ]
   gidR = []
   for g in GR:
      for k in g.id[-2:]:
         if k not in gidR: gidR.append(k)
   if r == 1: print
   for k in D:
      if k not in gidR: print "Missing R%d:  %d  %s" % (r, k, D[k])
   print

It’s a bit confusing because of the double-byes. I probably worked from the wrong direction, looking for missing players within a round. There will always be one pairing missing/round due to byes.

The <CG> intro should list the byes, if its to be worth its money.

Let’s put the notes in raw style, as I rework the tournament another time.

The first step in the second-pass is to look for missing pairings,

>>> N = D.keys(); N.sort( lambda x, y: cmp( D[x], D[y] ) )
>>> for n1 in N:
        for n2 in N[N.index(n1)+1:]:
                for g in TG[t]:
                        if n1 in g.id[-2:] and n2 in g.id[-2:]: break
                else:
                        print "Missing pairing:   %s // %s " % (D[n1],D[n2])

Missing pairing:   Albin, Adolf // Mason, James
Missing pairing:   Eisenberg, Louis R // Mason, James
Missing pairing:   Eisenberg, Louis R // Popiel, Ignatz von
Missing pairing:   Eisenberg, Louis R // Scheve, Theodor von
Missing pairing:   Eisenberg, Louis R // Tarrasch, Siegbert
Missing pairing:   Eisenberg, Louis R // Wolf, Heinrich
Missing pairing:   Janowski, David // Mieses, Jacques
Missing pairing:   Marco, Georg // Mieses, Jacques
Missing pairing:   Marco, Georg // Napier, William Ewart
Missing pairing:   Mason, James // Mortimer, James
Missing pairing:   Mieses, Jacques // Scheve, Theodor von
Missing pairing:   Mortimer, James // Scheve, Theodor von
Missing pairing:   Mortimer, James // Schlechter, Carl
Missing pairing:   Reggio, Arturo // Teichmann, Richard
Missing pairing:   Schlechter, Carl // Wolf, Heinrich

There are 15 missing pairings, which could actually be more, if first-pairing draws were replayed. Add these 15 missing games to the previous 5 missing games found during the 1st pass gives 20 missing games. That’s a step in the right direction.

What about the colors? Well, I can say for certain, but I can provide stats on the games that we do have. The following analysis excludes Rn.2 games from the White.Black count.

>>> for n in N:
        print n, "   %2d.%-2d   " \
             % ( len( [g for g in TG[t] if ".2" not in g.Round and n == g.id[-2] ] ),
                 len( [g for g in TG[t] if ".2" not in g.Round and n == g.id[-1] ] ) ), D[n]

18641     8.10    Albin, Adolf
10016     9.10    Chigorin, Mikhail
39147     6.8     Eisenberg, Louis R
12808    10.9     Gunsberg, Isidor
19523     9.9     Janowski, David
10002     8.9     Marco, Georg
10004    10.9     Maroczy, Geza
10309    10.9     Marshall, Frank James
10426     9.7     Mason, James
21823     9.7     Mieses, Jacques
10008     7.9     Mortimer, James
27118    10.8     Napier, William Ewart
10506     9.10    Pillsbury, Harry Nelson
10504     9.8     Popiel, Ignatz von
28903     8.10    Reggio, Arturo
39143     7.9     Scheve, Theodor von
10503     9.8     Schlechter, Carl
10510     8.10    Tarrasch, Siegbert
10524     9.9     Teichmann, Richard
10594    10.6     Wolf, Heinrich

>>>

A count of 10 means the player is “color-saturated”, and so any missing pairings very likely involve the player with the non-saturated color.

If this wasn’t a rough-cut I would edit it down to make it look like I knew what I was doing from the start. I didn’t. Overlooking the double-bye was a big mistake, leading to confusion. It’s not like I didn’t have hints about it (eg R20, R21). But that’s how it goes, and the analysis, will slightly misdirected, was still useful (e.g the five missing games involving replayed games, plus identifying the players with byes).

The other thing I would do, if this wasn’t a rough-cut, would be to sort the lists out alphabetically. But that’s polishing, the main work is there in the above for anyone motivated to actually document the tournament at the level it deserves.

 

zz

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2 thoughts on “Known Unknowns – Monte Carlo (1902)

  1. Monte Carlo 1902: notes from Chessbase

    Probably incomplete scores (very small number of moves):

    Teichmann = Mason (r7)
    Albin 0-1 Teichmann (r12)
    Marco = Mason (r13)
    Janowski 1-0 Mieses (r15)
    Eisenberg 0-1 Wolf (r17) – no moves at all
    Mortimer 0-1 Mason (r17)
    Eisenberg 0-1 Von Popiel (r18)
    Reggio 0-1 Teichmann (r19)
    Tarrasch 1-0 Eisenberg (r19)
    Von Scheve 1-0 Mortimer (r19)
    Mason = Eisenberg (r20) – no moves at all
    Mieses 1-0 Von Scheve (r20)
    Wolf = Schlechter (r20) – mo moves at all
    Mortimer 0-1 Schlechter (r21)
    Napier = Marco (r21) – no moves at all
    Von Popiel = Gunsberg (r21) – no moves at all
    Von Scheve = Eisenberg (r21) – no moves at all

    Definitely incomplete scores (a position and the last few moves provided):

    Albin 1-0 Mason (r14)
    Marco 0-1 Mieses (r14)
    Sclechter = Albin (r16)

    REPLAYED GAMES

    Von Popiel = Wolf (r15) – position, last few moves given
    Von Popiel = Schlechter (r17)
    Eisenberg = Mason (r20) – no moves at all
    Schlechter = Wolf (r20)
    Eisenberg = Von Scheve (r21) – no moves at all
    Marco = Napier (r21) – no moves at all

    26 games missing. NB some (eg Teichmann-Mason) do not match your list of
    which colour pairings were originals rather than replays.

    • Thanks . I’ve just finished stubifying the tournament, and will compare my results against yours.

      Let’s just post the raw data for the first pairings:

      R14 1-0 Alpin-Mason (15)
      R14 0-1 Marco–Mieses (9)
      R15 1-0 Janowski–Mieses (5)
      R17 0-1 Eisenberg–Wolf (7)
      R17 0-1 Mortimer–Mason (14)
      R18 0-1 Eisenberg–Popiel (13)
      R19 0-1 Reggio–Teichmann (3)
      R19 1-0 v Scheve–Mortimer (11)
      R19 1-0 Tarrasch–Eisenberg (10)
      R20.1 = Eisenberg–Mason (2)
      R20 1-0 Mieses–v Scheve (6)
      R20.1 = Schlechter–Wolf (4)
      R21.1 = Marco–Napier (1)
      R21 1-0 Mortimer–Schlechter (8)
      R21.1 = v Scheve–Eisenberg (12)

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