I Fers {1,1} II Alfil {2,2} III Wazir {0,1} |
IV Dabbaba {0,2} V Camel {1,3} VI Giraffe {1,4} |
VII Terror (Q + K) VIII Chancellor (R + Kt) IX Centaur (B + Kt) |
X Dragon (P + Kt) XI Grasshopper XII Neutral |
The Weekly Articles | Notes |
Introduction.[1]
The intention of this essay is to survey in as complete a manner as possible the chief new chess pieces that have been added from time to time to the orthodox seven.[2]
The treatment is historical, dealing with early changes; and technical, pointing out the most prominent characteristics of each and exemplifying these in problems. The ground covered is restricted to Indo-European chess.
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[1]Cheltenham Examiner 10 April 1913. [2] In counting seven orthodox pieces TRD is presumably counting the Bishops on black and white squares as different. In CWR (1935) he reduced his count to six. [3] Presumably Dawson is referring to more recent happenings than Allgaier's (1795) handbook or Staunton's laws for the 1851 London tournament. [4] The supposed end of orthodox chess problems is a perennial prophecy, but new compositions are still published in great numbers. [5] Can anyone identify the work described here? [6] There are a few lines missing from the end of my photocopy of this section. |
I The Fers or Mediaeval Queen. [1]
Strictly speaking, of course, our own present-day queen and bishop are most unorthodox pieces. The original chess had no such powers. Since, however, I write as a modern, it will be only fair to treat the early queen and bishop as forces new to our twentieth century chess.
The solution commences 1 QB3. White now threatens QKt4 mate. If Black defends by QKt4, the new queen at Kt8 leaps to Kt6, giving mate. If QK4, new queen leaps to K6, giving mate. If RxQ or RKt6 or R5, then KtR4 mate, and if anything else, the threat. |
[1]Cheltenham Examiner 10 April 1913. [2] W. S. Branch follows this article with extensive historical notes about the fers, including similar pieces in Chinese, Burmese, Siamese and Japanese chess. I believe he had done extensive research on the history of chess himself, and was not relying on H. J. R. Murray's A History of Chess which was first published that year. |
II The Alfil or Mediaeval Bishop. [1]
The alfil has possessed quite a number of names, these being chiefly variations in spelling in the old MSS. Such were alfin, alfyn, alphyn, and aufyn. Alfil is the Arabic from al fil the elephant.
The solution goes 1 PB8 (Mediaeval B), KQ2; 2 RB7ch, KK3; 3 PKt8 (Mediaeval Bch), mate! If 2KB3, 3 PR8 (Mediaeval b), mate! If 2K else, 3 PR8(R) mate. If 1else, 2 RB7 as above. I have treated these first two men very briefly, since so much has been written elsewhere of them and there are a large number of problems extant showing their peculiarities. |
[1]Cheltenham Examiner 17 April 1913. |
III The Wazir. [1]
Timur or Timour was a great tartar soldier who conquered Northern India and there discovered a game[2] which interested him so much that it is now known as Timur's Great Chess. It was played on a board 11 by 10 squares with two extra ones of special properties. There were a number of new pieces added to the normal chess array to fill in the vacancies.
The inverted rooks at a8 and h1 are wazirs. White mates in 10. The theme is simply grab a duel between the white king and the W at h1. Play 1 KB1, W.R7; 2 KKt1, W.R6; 3 KKt2, W.R5; ...; 8 KKt7, W checks; 9 KxW, and now either W.Kt1 or KR3 is forced when 10 RR5 mate. The only other point on which we need be curious about the wazir is his holding power. It only takes 5 queens or 8 rooks to guard the whole of a chess board, but no less than 20 wazirs are required. There are a great variety of placings; here is a symmetrical one. Put wazirs on: a2, a5, b2, b5, b7, b8, c5, d1, d2, d3, e6, e7, e8, f4, g1, g2, g4, g7, h4, h7. |
[1] Cheltenham Examiner 24 April 1913. [2] In a following note, Branch queries H. J. R. Murray as to whether Timur was acquainted with his game before he saw India. Murray opines: I think there can be little doubt that the game originated in Persia (possibly in Turkestan), not long before Tamerlane's day. No work before Al-Amuli's encyclopedia knows it, or of any game with citadels. Al-Amuli died in 1352. He gives it among his five varieties of chess. |
IV The Dabbaba. [1]
This piece is also from Timur's Great Chess. The name means a movable shed or tower on wheels. This was pushed up (before the days of artillery) against a town or castle wall in a siege, either to act as a scaling ladder or as a cover to mining. In European warfare it was named a sow.
The inverted rooks, two black, one white, are all dabbaba. White mates in two by 1 KKt3! B any; 2 DB2 mate RR5; 2 DxR mate QKt any 2 KtB3 mate KKt any; 2 KtKt4 mate.
The holding power is very easily studied. Notice a D on c4 can only command a4, c2, c6, and e4, and can only reach in all a system of sixteen squares, all white. Similarly the other sixteen white squares form a system on which a D might travel, and the black squares make two more like networks. Hence we only need to study one system and multiply by four to learn the constants of the whole board. If four Ds be placed on a6, c8, g4, c2, the whole of one system is guarded or occupied. If six Ds be placed on b4, b6, f2, 4, 6, 8, the whole of another system is guarded. Thus we require sixteen Ds to guard and occupy or 24 Ds to entirely guard the board. This compares unfavourably with the Wazir, which, as we saw, took 16 and 20 respectively. |
[1] Cheltenham Examiner 8 May 1913. |
V The Camel. [1]
This is still another of the Timur pieces. It is very similar to the knight in move, but reaches slightly further, traversing the diagonal of a rectangle 2 by 4 squares.[2] Thus a camel on e4 commands d1, f1, h3, h5, f7, d7, b5, b3. It has full power to leap, of course, and so is yet another piece capable of giving smothered mate. Here is an example of this.
The inverted Kts are camels. White mates in 2 by 1 Q-Kt5! threatening 2 QxKtP mate. If 1 PxQ 2 CxP mate. If 1 KtxR 2 CxKt mate. If 1 P-Kt3 2 QxBP mate. If 1 else; 2 threat.
Two Camels and a King can not force mate against a lone opposing King as can be proved thus. Put Black K on b8, White K on b6, and white Camels on f7 and d4.[3] Note the Cf7 is necessary to keep Black K from c8. Now if Black move to a8 suppose Cf7 could check at b5. K would be driven back to b8 and C to a5 would be mate. But observe in checking at b5, the C guards c8 just as it did on f7. Now a Camel, just like a Kt, if it guards a square, must take two moves to gain another square which guards the first, so that from any square guarding c8, the Camel must take at least two moves to reach b5. hence it follows the C can never guard c8 one move and check on b5 next, and so two Cs cannot force mate. Here, however, is an amusing exercise in which one C and one Kt between them force mate, this being possible because the C is far enough away to let WK get near on one hand, and because the Kt is handier in changing colour on the other!
A final point worth mentioning of the Camel is that he can make a tour of his 32 square domain similar to a Kt's tour. Here is a specimen which is re-entrant, meaning the 32nd square is just a Camel's move from the 1st.[5] Play from a1 to b4, a7, d8, g7, h4, g1, f4, e5, f6, c7, f8, g5, h8, e7, b8, a5, b1, e1, h2, e3, d6, c3, f2, c1, d4, g3, h6, e5, b6, a3, d2, and so back to a1. |
[1] Cheltenham Examiner 15 May 1913. [2] Strictly speaking the line of the camel move is not the diagonal but from centre to centre of the corner squares of the 2 by 4 rectangle. It is now more usual to describe the camel move as {1,3}, indicating a move equivalent to 1 rook step followed by 3 rook steps in the perpendicular direction. [3] The position described is:
[4] The problem position is:
[5] Here is a diagram of the tour.
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VI The Giraffe. [1]
This is the fourth piece from Timur's chess. Its move is one square rookwise beyond the camel's move. This means that the giraffe is another leaping piece, which traverses the diagonal of a rectangle 2 by 5 squares.[2]
It will be seen it changes the colour of its square each move, like a knight. Owing to its exceptionally long legs to say nothing of its neck the giraffe can never guard more than four squares on the board at once. Thus placed centrally on e4 it only reaches f8, d8, a5 or a3.
Moved partly to the edge on f2 it has g6, e6, b3, b1, or right at the edge on d1 it has c5, e5, h2 never more than four, and in a corner only two, like the Kt and Camel. The following two-er illustrates these long sweeping moves and guards:
Thus 1 Q-R2, P-R4; 2 K-R4, K-Q5; 3 Q-Q6 mate! If 1 K-Q5; 2 Q-R5, K-Q6; 3 Q-Q1 mate. Finally, I see no reason why a giraffe tour of the board cannot be made analogous to the knight's, but I have not succeeded in working one out myself at present.[3] Before leaving this portion of my subject the ancient new pieces, I may mention several interesting facts in connection with Timur's Great Chess.
There is a great deal more that could be said about the development of Indian chess in China, Japan, and the Far East generally, but this would take us too far from our subject and must be left to a future occasion. The remaining new pieces are all of comparatively modern suggestion, and one at least appears to be really new. |
[1] Cheltenham Examiner 22 May 1913. [2] Similar comments apply as for the Camel move. Also the Zurafa in Timur's game (according to Murray's History) was somewhat different from the modern Giraffe: after the leap it could continue forward like a rook. [3] Subsequently, in l'Echiquier 1930's Dawson achieved a 63-cell giraffe tour. In fact a complete giraffe tour is impossible. G. P. Jelliss gave a proof in Chessics #2 1976. Dawson does not seem to have been aware of closed tours of a 10×10 board by {1,4}- and {2,3}-movers (i.e. Giraffe and Zebra as we now call them) given by A. H. Frost in 1886. [4] Other sources (e.g. Murray) say that the Talia could leap over a piece on a diagonally adjacent square. There was also a bishop-moving piece, the Courier, in the earlier German game of Courier Chess played on a widened board with 12 files. |
VII The Terror. [1]
In 1840 Herr Tressau of Leipsig played on a board 11 by 11 squares with three new pieces. One of these was a General, a combination of Q and Kt. This is a piece one reads of in text books as being capable of mating against a lone King, but so far as I am aware no example of its power was published until, in 1912, I wrote a semi-humorous paper naming the combination a Terror[2] a particularly appropriate name, as any one who tries its properties will find. Mr G. C. Wainwright has since published a problem embracing this piece.
1 K-Q4, Black any move; 2 Terror to QB3 mate. It will be seen that Black King has for his move a choice of seven squares.
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[1] Cheltenham Examiner 29 May 1913. [2] The article referred to is probably one of Dawson's series that appeared in Reading Observer that year. The name Terror is still occasionally used, but Amazon is now more popular. [3] A note in the next issue reads: In No VII, there should be a White Pawn on QKt4 on the diagram illustrating the Terror. Without the Pawn Black can prevent mate in two by moving P-Kt5. We show the corrected diagram. [4] Does anyone have details of this problem? |
VIII The Chancellor. [1]
The history of this, the most popular new piece ever used in modern days, I quote piecemeal from Mr B. R. Foster's Chancellor Chess, a little book published in St Louis, U.S.A., in 1889: There are four instances where the Chancellor under different names was used on different boards.
This piece is easily the most widely used of all new pieces. Many games have been printed showing its powers, and in 1887, in the St Louis Globe Democrat, twenty-seven problems were entered in a Chancellor tourney. There are more than forty problems in Chancellor Chess, and in my eccentricity collection are a considerable number more.
The inverted Rook is the Chancellor.[2] White mates in two. The key is 1 C-K4 and according to the defences the C mates on b4, c5, d6, e7, f6, g5, f4, e3, d2, c3 and d4, e5. |
[1] Cheltenham Examiner 5 June 1913. [2] The name Chancellor is still popular with variant chess players, but problemists tend to use the name Empress which was used by Dawson in most of his later work. |
IX The Centaur. [1]
As we saw in the historical notes to the Chancellor, the B-Kt combination was suggested at similar times as R-Kt union. Still more recently Mr W. P. Turnbull published a puzzle in Chess Amateur, using two griffins (B and Kt), and in the curiosity column of the Strand Magaziine appeared a tour of B and Kt, making a magic square, by Mr E. Wallis of London.
If the C can get the opposing king into a corner he may mate him there alone, and in any case can keep him in perpetual check. Thus in the following ending,[3] White forces a draw from an otherwise helpless position:
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[1] Cheltenham Examiner 12 June 1913. [2] The name Centaur is now seldom used for this piece (it is preferred for the K + Kt), instead Dawson's later term Princess is preferred. [3] This is the ending position:
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X The Dragon. [1]
The combination of Knight and Pawn leads to some amusing points of strategy. It was first used so far as I am aware in a short paper by myself in the Reading Observer last year.
The inverted Kt is the dragon, which has all the power of Kt and P except promotion. White mates in two. The key is 1 R-R2. If 1 PB4 or P-K4, then 2 DxP, e.p. mate! If P-B6, 2 D-K3 mate; if P=Kt6 2 D-B3 mate, etc. Here in two variations the D moves as a pawn and mates as a Kt, whilst in the other two it reverses these functions.
The king and one D alone can not force mate, but two D's by themselves are able to do so, as in the little twin problem:[2]
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[1] Cheltenham Examiner 19 June 1913. This column is preceded by an editor's note:
[2] This is the problem position:
Note that in (ii): by Put WP on g3 he means move the WPg7 to g3, not add another WP! |
XI The Grasshopper. [1]
This is another piece I have worked on quite a considerable time, though for the first time publishing any material on it. It is somewhat similar to the Chinese cannon which only attacks an adverse man if some other man intervene. The grasshopper moves queenwise, but only to a square immediately beyond one man in the line.
The key is 1 K-Kt7. If now G at h3 hops to f3 he gives check but he enables white G to reach e4, which stops the check ! and gives mate.
It may show quite well defined focal character. Thus in this problem:[2] White: K at g5, R at d1, Kt at e3, P's at c2, f2, f6. Black: K at e4, G at a3, P's at b5, c5, d6, e5, f3. White mates in 2.
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[1] Cheltenham Examiner 3 July 1913. [2] The problem position is:
[3] A note by W. S. Branch follows:
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XII The Neutral. [1]
This is the newest of all new pieces, being used by myself late last year for the first time. The definition is simple but the results are wonderfully comples. Thus: Either player may treat any neutral as of either colour.
White plays 1 Kt-Q7, threatening Kt-B7 mate with the other knight. If black play KtxKt, then white assumes the (P) is black and the (B) white and plays (B)x(P) which is mate for, suppose black say the (B) is black he can only move it on the long diagonal, and white on his next move promptly calls it white and plays (B)xK. If black 1, calls (P) black and plays King to Kt2, white at once calls it white and (P)xK. Also suppose white calls (P) and (B) both white and attempts to mate on the move by (P)-B7, black at once reverses colour and plays the (P) back to B3. This two-er is particularly interesting in that the neutral (B), as already described, gives a direct mate after KtxKt, for a direct mate is a difficult thing to give with a neutral. Ordinarily black would simply reverse the colour and move the neutral back where it came from. Here, of course, he can do that, but it does not save his king. That concludes what I have to say in detail on new pieces. I can only hint vaguely at such things as the Ship, the Ghost, the Phantom, etc., which form further arrows in my quiver, leaving them all to some future consideration. What I have written, I trust, will convince readers that Caissa is a very energetic young lady, capable of supplying from her toy shelves the requirements of many more generations of problemists. To Caissa I pay this small tribute. T. R. DAWSON. |
[1] Cheltenham Examiner 10 July 1913. [2] The two neutral pieces, although shown as white are not counted as White pieces. Some chess problem magazines now show them by special half white and half black symbols. |