Banner Analysis Georgiev - Gulyaev

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Georgiev - Gulyaev
Alexander Georgiev, here in action during Open Flevoland 2018, has scarcely played in recent years. But his duel with Nikolai Gulyaev can rightly be called a masterpiece, a game in which he delivered a great, creative performance.
Photograph: foto.kndb.nl

Georgiev - Gulyaev

Brilliant double sacrifice forces former Russian champion to his knees

Author: Ben Provoost
01-10-2023

Alexander Georgiev won the Russian draughts title in April. According to the data from Toernooibase, it was the thirteenth time he succeeded in doing this. Georgiev first managed to outpace the competition in 1995, in what has traditionally been the world’s strongest national draughts championship.

Several former champions were absent from the 2023 championship. Alexander Shvartsman, now residing in the Netherlands, did not participate for understandable reasons. Alexey Chizhov also skipped the tournament. Players such as Ivan Trofimov, Vladimir and Maksim Milshin, and Ainur Shaibakov—all former champions—were likewise absent. Strong grandmaster Murodullo Amrillaev, the 2011 world championship runner-up, also did not take part.

The latest Russian championship was not particularly thrilling. The eventual winner struck early, scoring in the first round against Alexander Ldokov. Over the next seven rounds, he found the net four more times.

At the time of writing, only four games from the tournament (all played by Georgiev) were available in Toernooibase, yet I am confident in asserting that his duel with Nikolai Gulyaev was not only his greatest sporting achievement but also his most creative performance. All the more reason to highlight this game in this analysis.

The game was played in the fifth round. Up until round four, both players had been performing well. Georgiev led with 7 points from 4 games, followed by Gulyaev and Alexander Getmanski, just one point behind. After winning rounds five and six, Georgiev increases his lead to three points, a gap that doesn't close again. Nevertheless, round seven was tense, as the solidly attacking defending champion, Sergey Belosheev, had an excellent winning chance against Georgiev. As Belosheev missed this opportunity and the game ended in a draw, the Ufa resident could be crowned champion a round before the end.

At a respectable distance, five players finished with ten points, including Gulyaev. However, additional tiebreak criteria placed Getmanski and Belosheev in second and third place, respectively.

Before diving into the game Georgiev-Gulyaev, a brief note on the player of the black pieces. The 33-year-old Russian is a strong draughts player, as evidenced by his FMJD rating of 2311. His first notable success came in 2007 when he won the World Youth Championship. Truly major successes have eluded him since, apart from winning the Russian championship in 2018. Notably, at the end of 2021, Gulyaev made headlines by winning the Polish Open Julinek Park, ahead of compatriots Alexander Getmanski and Marsel Sharafutdinov.

According to Turbo Dambase, the two players faced each other for the tenth time in the April tournament—excluding rapid and blitz games. In their previous nine encounters, Georgiev had won twice (in the Russian championships of 2010 and 2012). The remaining games between these two competitors ended in draws.

The 2023 game between Georgiev and Gulyaev was characterized above all by Gulyaev’s attempts to keep his formidable opponent at bay. His third move was telling, and his twelfth move was outright passive. Nevertheless—or rather, because of Gulyaev's overly cautious approach—Georgiev soon obtained an attractive position. Using subtle exchanges, he thinned out Black’s long wing while working toward a surrounding of the black center, always keeping the possibility of switching to a favorable classical game open.

After a surprising transition to semi-open classical play (25.38-32), Black needed to play precisely. When Gulyaev failed to find the best responses on several occasions, he found himself in trouble. In a tactical battle with temporary sacrifices on both sides, the former Russian champion seized his opportunity. With a brilliant double sacrifice (40.26-21, 41.27-22, and 42.29-23), Georgiev placed Gulyaev in overwhelming difficulties. The black player manages to reach an endgame, but the white advantage is decisive, and Georgiev finishes it perfectly.

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Alexander Georgiev - Nikolai Gulyaev

1.32-28...This opening move does not deserve the originality prize. The fact that 1.32-28 is the most favored first move, even among top players, is undoubtedly related to the fact that white can quickly develop piece 46. Another reason to make this move is that white waits a while and thus puts the ball in black's court, so to speak. 1....19-23Chances are that this cut through white's preparation. According to Turbo Dambase, it was only the 9th time in his career that Gulyaev used this symmetrical response to 1.32-28. 1.28x1914x233.35-30!?...Interesting! According to Turbo Dambase, Georgiev has never played this move before in this position in previous games.
Clearly, this sharp move leaves nothing to the imagination: white wants a close fight.
3....10-14And black's reaction is also telling. As in several previous games between the two, Gulyaev prefers to hold back against his illustrious opponent. The most common reply is 3...20-25Theory also includes 3...18-22, a continuation described by Baliakin and Gantvarg in their well-known book on the opening 32-28 19-23. 4.40-35!?...With 4.30-2514-191.25x1419x106.34-30the white player could have followed in the footsteps of Hans Jansen. This Amsterdam grandmaster often played this way, achieving fine victories with this style of play. Jansen does, however, prefer 34-30 on the third move over the razor-sharp 35-30.
Georgiev, however, opts for his own plan. He seems uninterested in the theoretical advantage of solving his edge piece on 35 with 4.30-25. Coincidentally or not, this again calls to mind Alexander Dibman. Several known examples exist of this former fellow townsman of Georgiev in which, in similar positions, he likewise abandons an 'advantage' in favour of the sharpest possible play.
4....13-19Fully in line with his previous move, Gulyaev once again forgoes the sharp continuation 4...20-251.30-25...White advances piece 30 to square 25. A potential focus point is piece 5, which might be challenging to bring into play.
Since Black’s previous move aims to strengthen their long wing as much as possible, forming a fist with 45-40/44-40 followed by 33-28x28 (hoping to later conquer square 24) seems less promising.
1....8-136.34-30...
6....17-21Black makes his intentions clear. The move 6...20-24is not appealing, as white could play 7.33-28!23x328.37x28to target piece 5. The waiting move 6...2-8might lead to a key position known from a different opening: 7.45-4017-228.37-3211-179.41-376-1110.46-411-611.50-454-1012.31-26
A position appears on the board that typically arises after the opening moves 1. 32-28 17-22 2. 28x17 11x22 3. 37-32 6-11 4. 34-30, and so on. For an analysis of this opening by Ton Sijbrands, refer to the book "Jubileummatches 10 jaar 'Dammen'", pages 45 and onward.
7.30-24!?...Not the most exciting move, but one with a clear plan: White aims to weaken black's long wing with the exchange. Georgiev may have already sensed that opportunities for surrounding the center would arise. Another idea is 7.45-402-88.40-3411-179.31-267-1110.44-401-711.50-45and after 11....4-10
a well-known position from the opening arises: 1. 32-28 17-22 28x17 12x21 3. 34-30. Alexander Getmanski discusses this position on page 138 of his book "KURS DEBIUTÓW".
7....20x298.33x2419x309.25x34...Black must now respond to the simple threat of 31-27! w+. 9....14-1910.35-302-8To counter the exchange 30-24 10...15-20is also an option. 11.30-24!...Once again, an attack on black's left flank. 11....19x3012.34x2521-26?!
A much more active option is 12...13-19!An important advantage of this move over the move played in the game is that black does not automatically reduce piece 21 to an edge piece but keeps the option open to move this piece to square 27 in the future, giving it a much more active role. 13.31-27!...Prevents the development 11-17. 13....5-1014.45-4010-1415.40-3414-1916.39-339-1417.34-30!...Before black can build a strong position, white is already prepared to undermine the emerging powerful center. 17....12-17
Finally, black can make a move on the right again. This wouldn’t have been possible after 17...15-2018.30-2420x2919.33x2419x3020.25x34after which black would temporarily be unable to develop his short wing. 18.30-24!...The logical consequence of white's previous move. We’ve seen this exchange before, and the goal remains unchanged. White accepts that the tempo balance will increase to -10. 18....19x3019.25x347-1220.44-404-921.50-44!...
White thinks it can do without the Olympic formation (45/40) and moves piece 50 to the center. 21....14-19Black thus says goodbye to the 3-9-14 formation for good. Gulyaev could have kept this formation intact for the time being if he had opted for 21...17-2222.44-3922x3123.36x2713-19and then 8-13 and 11-17. It's hard to say if this would have been better. 22.40-359-1423.44-39...
23....3-9Not an easy decision. After all, black will soon have to make a tough decision on the left:
a. Move 15 to 24. The consequence may be a classic position on the board in which piece 9 will 'hang'.
b. Build up with 14-20, 9-14, and 20-24. Black risks leaving piece 15 behind. However, the alternatives are not anything to write home about either:
On 23...17-21?the standard sacrifice 24.27-22!18x2725.33-293-9*26.29x71x12is unattractive for black. Equally unpleasant for black is 23...17-22?24.33-29!22x3125.36x27and now, for example 25....11-1726.38-33!3-927.35-30!with limited options for black. 23...1-7also has its disadvantages. After 24.49-44it seems that black has only postponed his problems. After 24....17-21?black is no longer troubled by the pseudo-sacrifice 27-22 and 33-29. But now 25.33-29!21x3226.38x273-927.35-30!is particularly problematic because black's freedom to play on the right is reduced to zero by small combinations to king. An idea is to continue with 23...14-2024.34-3017-22The underlying idea is that black (by keeping square 14 open) does not have to fear a piece left behind on 15, because after 30-25 there can always be a backward exchange with 19x10. And with a (repeated) trailing move on 27, black does lose tempi, but he also thins out the position and makes room to develop piece 6.
Admittedly, it's not ideal. At best, black can hope to fend off white's surrounding attempts.
24.34-3017-21
25.38-32!?...An interesting, ambitious, and promising move. Remarkably, after some thinking, three computer programmes each have a different preferred move: Flits: 25.30-2521x3226.38x27Kingsrow: 25.37-3121x3226.38x2726x3727.41x32Scan: 25.36-3121x3226.37x2823x3227.38x2726x3728.41x32
For all these moves, white's position is unmistakably easier and he should be given the best chances in a (closed) classical play that will presumably emerge later. But that Georgiev chooses a sharper continuation is understandable. Especially given his preference for semi-open classic.
25....15-20?!The advance of 15 to 24 plays into white’s hands. Black’s desire to occupy square 24 leads to white infiltrating this crucial square within ten moves.
Could black have done better? Four alternatives are considered in more detail:
Obviously 25...14-20??was not allowed: 26.37-31!26x2827.33x2221x3228.30-25!18x2729.25x3+-The panic reaction 25...23-29?26.33x2414-20, a drastic attempt to thwart the white surrounding, also fails: 27.42-38!20x2928.38-33!29x3829.37-31!26x2830.43x321x32+-After 25...11-17white gains the advantage with 26.33-28!For example, the following can occur: 14-2027.43-38!After 27.37-3126x3728.42x31white gains nothing, because strong moves 28....20-24!and then 24-29! follow. 9-1428.49-436-1129.39-3320-2430.37-31!26x3731.42x31
31....21-26After 31...14-20?strong 32.27-22!18x2733.31x22follows. 32.41-37!17-2133.47-421-634.30-2511-17
A)35.27-22!18x2736.31x116x1737.36-31!and in the closed classical play, white has the best prospects. B)Attractive seems 35.43-39?!after which 17-2236.28x1724-2937.33x2419x3038.35x24
seems forced. In this case it is forced but strong, provided black only plays 38....14-20!The tempting 38...23-28?39.32x2321x3423-28 fails due to the brilliant counter-combination 40.24-20!15x2441.46-41!18x2942.42-38!12x2143.31-2721x4344.48x10and black will have to do his best to secure even a single point. 39.25x14and only then plays 39....23-28After 40.32x2318x9and the mandatory 41.27-22black can always play 12-18 and recover the piece with a promising position.
The best move seems to be 25...1-7!The main variation is now as follows: 26.42-38!26.39-34?23-29!27.33x2414-20with advantage for black. 14-2027.39-34Black now has two logical continuations:
A)27....20-25?Not the best. 28.43-39Of the four playable moves, three are losing:
A1)11-17?29.37-31!26x2830.33x221x4331.49x38+-A2)28...12-17?29.34-29!25x4330.48x3923x4331.27-2217x3932.38-3339x2833.32x1+-A3)28...9-14?29.33-29!12-17After 29...23-2830.32x2321x4331.49x3819x28naturally 32.37-31!26x3733.41x23and victory seems to be a matter of technique. 30.38-337-1231.36-31!!
White decides on the so-called nameless skeleton. 31....17-2223-28?32.33x22!17x2833.32x2319x2834.29-24!21x3235.24-2015x2436.30x10+-32.49-44!14-20A beautiful winning sequence follows after 32...11-1733.30-24!19x3034.35x2414-1935.44-4019x3036.40-356-1137.35x2422-2838.33x2217x28
39.48-43!11-1740.41-36!17-2241.47-4112-1742.34-30!
33.30-2419x3034.35x2422-2835.33x2223-2836.32x23Also 36.22x3318-2337.29x720x4938.7-1is attractive. 21x3237.37x2818x3638.48-43and after the subsequent 34-30x30, Black can have little hope of survival.
A4)28...15-20In fact, the only one. 29.47-4220-2430.49-4411-1731.33-2924x3332.38x29Strong is also 32.39x2819-2433.30x2818-2234.27x1813x24And although his long wing is heavily underdeveloped, Black remains standing. B)Due to the previous variations, Black seems to be forced to 27...20-24But even then, White sets up a surrounding maneuver: 28.49-44!Losing is 28.47-42?24-29!29.33x249-14!30.36-3111-17and White has no good moves left. 9-1429.44-4011-1730.47-42Black now has to be very careful:
B1)30....6-11?31.33-28!
B2)Also dangerous for Black is 30...7-1131.33-29!24x3332.38x2917-2233.43-3922x3134.36x27and after the obvious 34....11-17White can already start combining with 27-22, and so on, although 35.30-24!19x3036.35x24according to the computer, is even stronger. B3)Strictly speaking 30...24-2931.33x247-1132.36-31*is not wrong, but now Black should not continue with 17-22?Black seems to have it under control now, because 41-36 and 43-39 are prevented combinatorially. Recommended is the realistic move 32...23-2833.32x2318x2034.34-2921x3235.37x2826x3736.41x32with a defensible position. 33.38-33!!
An 'impossible' move. 33....23-2934.34x2318x3635.27x2036x4936.24x215x2437.30x19with a very bad endgame for Black.
B4)30...17-2231.33-2924x3332.38x2922x3133.36x276-11and now the computer advises 34.32-28!?Because 34.43-39?23-28!is problematic. 23x3235.27x3811-1736.43-3917-22and the attack on Black's weakened long wing continues after 30-24x24 or 30-25. B5)30...14-2031.30-25!Stronger than 31.33-2924x3332.38x2917-2224-30?32.25x1430x2833.40-3419x1034.27-22!18x2735.37-31+-32.25x1422x31*33.36x2719x1034.33-29!After 34.34-30?Black can continue well with 23-29!35.30x1913x2424x3335.38x29and White is slightly better, although the advantage after 35....13-19!is minimal. B6)Surprisingly, Black's strongest continuation is the forced 30...15-20!31.30-25White has little after 31.33-2924x3332.38x2920-2523-29!32.34x2319x3933.43x3413-1934.34-30After a few moves, it becomes clear that Black does not need to fear the White arrow lock. 34....18-2335.38-3312-1836.40-348-1337.34-29What else? 37....23x3438.30x397-11!39.39-3418-2340.34-30The new arrow lock is more economical than the previous one, but Black doesn't need to worry. 40....13-18!
41.36-31White has no better move. 41....18-22!42.27x2921-2743.32x1211-1744.12x2116x3845.33x4224x3346.48-43and despite the material deficit, it is Black who is in a better position.

The conclusion of this series of variations is that after 25...1-7! 26.42-38 14-20 27.39-34 20-24 28.49-44 9-14 29.44-40 11-17 30.47-42 Black is slightly better if he can find 30...15-20! and so on.
However, the brilliant move 25.38-32!? demands so much from the Black player that he makes an immediate mistake, after which, from an analytical perspective, the strategic balance in this game is broken for the first time.
26.42-3820-2427.39-3411-1728.47-426-11?Black would have been wiser to retreat with 28...24-2929.33x2423-2830.32x2318x20with passive but tenable play. 28...1-729.33-2924x3330.38x2917-2231.43-3922x3132.36x2723-2833.32x2319x28White can respond to this attack to the sixth row in three different ways:
A)The most interesting (but perhaps not the best) is 34.30-24!?21x3235.34-30!The idea 35.42-38?32x4336.49x38as played in the game, it fails on 36....28-32!14-19Although White can then play 30-25 and 24-20 (with a breakthrough in the long term) 35...16-21is better according to the computer programs. 36.30-25!The King 36.29-23?!18x2037.42-3832x2538.37-3126x3739.41x320-2440.3-14is too expensive. 19x3037.35x24!White now gets chances, as the following variation shows: 9-1438.49-43!12-17?Black's best defense is 38...16-2139.42-3828-3340.38x1633x4441.43-3944x3342.29x38although White clearly maintains the lead. 39.39-33!28x3940.43x34
40....14-19?Unpleasant for Black is 40...7-1141.37x2817-2242.28x1711x2243.24-20!16-2144.20x913x445.25-20but not untenable. 41.37x2819x3942.28-22!18x2743.48-4339x3744.41x3+-
B)34.29-2421x3235.24-1914x2336.39-3328x3937.37x1913x2438.30x1939x3039.35x24White has sacrificed a piece, hoping to break through. With 39....7-11Or also 39...18-2340.19x2812-1840.24-208-1341.19x1711x22= Black crushes this hope. C)White's best continuation is the unremarkable but nonetheless strong 34.39-3328x39Worse seems to be 34...21x3235.33x2218x2736.37x28and so on. 35.34x4321x3236.37x28Black will have to play carefully to keep the disadvantage under control.
29.33-29!24x3330.38x2917-22Black has two alternatives: 30...1-731.43-3917-22Worse is 31...23-2832.32x2321x3233.37x2826-3134.36x2718-2235.27x1813x44*36.49x4019x28and with 30-25/29-24!, White launches an attack on Black's underdefended long wing. 32.39-3322x3133.36x2711-1723-28?34.33x2218-2335.29x1812x2336.32-28!34.41-3617-2235.30-25!35.46-41?22x3136.36x27makes the pseudo-sacrifice 36....23-28!37.33x2218-23!38.29x1812x23possible. What is important is that 39.32-28has little substance due to 39....21x32!40.30-2419x3941.28x1016-21!42.37x2839-44!43.49x4021-27!44.22x3126x46and after 45.10-546x45en 46.5-32a draw is the most likely outcome. 22x3136.36x2712-17Although the white surrounding looks threatening, a decisive win is not possible, as the following variations illustrate:
A)37.49-437-12!38.46-4138.33-28?17-22!39.28x1723-28!17-2239.41-3622x3140.36x2712-1741.33-2817-2218-22?42.28x1721x1243.43-38and after the forced 43....23-2844.32x2319x28
Black just manages to stay in the game. What is important is that after 45.29-24the venomous 45....28-33!46.38x29and 46....12-17!follows, after which the white advantage has evaporated.
B)37.46-4117-22!Now follows after 37...7-12?the winning move 38.33-28!38.35-30After 38.41-3622x3139.36x27Black defends with 39....18-2240.27x1823x1222x3139.30-2419x2840.49-44Also not winning is 40.48-4323x3441.32x131-3642.1x4036x3843.43x3221-2744.32x2116x2745.40-2927-31
and Black holds on. For example, the following can still occur: 46.49-4431x4247.29x4726-3148.47-4131-3649.41x108-1250.10-4613-1951.46x1736-41=
23x3441.32x131-3642.1x4036x3843.40-29
43....13-18!44.29x338-4245.44-4042x3146.25-2014x2547.3x14and now only 47....25-30!leads to a draw. Not 47...31-36?because of 48.40-34!(Or 40-35!) 21-2749.48-42!26-3150.14-46!
After 30...1-6White can of course continue with 43-39 and (after 17-22) for example 30-24x24. However, White has an excellent alternative in the seemingly modest 31.30-25!?17-2232.35-30!22x3133.36x2711-1723-28?34.32x2319x2835.42-38!21x3236.38x2711-1737.37-31!26x3738.41x2313-1939.25-20!19x2840.20-15with presumably decisive advantage. After 33...12-17the remarkable 34.43-38!?17-2235.49-43!22x3136.32-2823x3237.38x36is very good for White. To illustrate, the following variant: 37....18-2338.29x1813x2239.34-298-1240.29-2319x2841.37-3126x3742.41x2311-1743.30-2412-1844.23x1217x845.24-20and White breaks through to a king in a few moves. 34.32-28A)23x3235.27x38
White is now ready to march with piece 29 to square 15 and hopefully soon after to one of the king squares. Black can only hope that the counterattack initiated with 21-27 (How White would love to have piece 46 on square 47!) is strong enough to avoid having to concede defeat.
B)After 34...21x32?a funny exchange of moves follows: 35.30-24!19x3936.28x1013-19What else? 37.43x349-13Also bad is 37...9-1438.37x2814x539.34-30!and subsequently 25-20. 38.37x2819-2439.29x2018-2340.28x1913x4In pieces, the position is now equal, but after 41.25-20(or starting with 34-29), White's breakthrough is unstoppable.
31.43-3922x3132.36x2723-28The best move. Very bad is 32...11-1733.39-331-734.41-3617-2235.30-2522x3136.36x2712-17and the position on the board is one we have seen before. After 49-43 or 46-41, Black must defend heavily, but an analytical win for White cannot be demonstrated. 33.32x2319x2834.30-24!!21x3235.42-38!32x4336.49x38...Beautifully played. White threatens with the deadly 37-31! 36....26-31The best response.
After the counter-sacrifice
36...28-32?37.37x2826-31Black's hope is pinned on the (seemingly) weak piece pair 46/41 and the missing piece on 47, but after 38.28-23!31-3639.41-3736-41White crushes Black’s hopes with 40.38-3341x32and 41.34-30!37.37x2628-32?Recommended is 37...1-7White's best chance then lies in exchanging piece 28 with 38.38-32After 38.41-37Black simplifies with 38....28-3239.38x2718-2340.29x1813x4241.48x37In the remaining position, White still exerts some pressure, but given the reduced material, Black likely does not need to worry too much about a favorable outcome. 28x3739.41x32Black is then under heavy pressure, although nothing is analytically decided. 38.38x2711-1739.34-30!...More logical is 39.39-33but after 39....1-7!Black manages to keep White at bay reasonably well. For example 40.35-30Another idea is 40.27-2116x2741.33-28and so on. 17-2141.26x1712x3242.30-2514-19!and as soon as White appears on square 20, Black regains a "gatekeeper" on square 4 with the exchange 9-14. The main merit of the move in question is that Black's most logical move is beautifully refuted. 39....1-7?
The white response is so elegant and surprising that the black player evidently fails to see it. Black can only stay on their feet by playing 39...17-2140.26x1712x32That is not easy to see, as White then increases the pressure with 41.39-33!Of course, not immediately 41.30-25?because of 32-38!after which 42.39-3318-23!follows. 1-7and 42.30-25!
It is now important that Black may not play 42....14-19?because of 43.48-42!19x3044.35x24!32-38Otherwise, 42-37 follows W+. 45.33-28!Or immediately 45.29-23!38x3646.29-23!18x2047.25x1+-

Black must therefore passively watch as White plays 24-20 and soon breaks through to a king. However, the computer indicates that White still does not have a definitive analytical win. So, Black could and should have gone for this line.
40.26-21!!...For the second time in six moves, Georgiev sacrifices material—this time even two pieces. The poor Gulyaev must have had no idea what hit him. 40....17x2641.27-22!...A true double sacrifice. 41....18x2742.29-23!...White now threatens to win back the lost piece with maximum interest by playing 24-19! Black, therefore, has no choice. 42....13-18*43.24-19!18x2944.19x10...
At the cost of a piece, White paved a path to the king’s row. Black is therefore without chances.
Nevertheless, he fights on for more than twenty moves, but fortunately, Georgiev makes no further mistakes and converts his beautifully played game into a win.
44....26-3145.30-25...Candidate king 2 advances. 45....31-3646.41-3712-1847.25-20...There is nothing wrong with 47.10-5but the same applies to the game move. Not good, on the other hand, is 47.35-30?because Black takes back the piece on 10 with 9-14!48.10x19and 48....18-23!49.19x28and equalizes the position with 49....29-3350.39-3433x22After subsequently 22-28 and 27-32, Black secures a draw. 47....18-2348.39-34...Apart from the question of whether White will win after 48.10-49-1449.20x98-1350.9x1823x1251.4x3136x2752.35-30
it is completely understandable that Georgiev had no interest in this.
The answer to the question is, by the way, "yes".
48....29x4049.35x4423-2850.44-39...50.10-4?28-32!51.4x1132x4152.46x3716x753.20-1427-3254.37x2836-41and the endgame ends in a draw. 50....8-1251.39-3412-1852.37-31...Also effective is 52.10-4+-52....18-2253.10-4...
53....16-21A clever maneuver by Black. 54.4x121-2655.1-29...What White does is logical. Also winning is 55.20-1526x3756.15-1036-4157.34-29!41-47What else? 58.10-547x2459.5x41And his two kings secure White the win. 55....26x3756.29-24!...Of course not 56.20-15?because of 27-32!and 37-41x41 =. 56....27-32After 56...37-4157.46x3727-3158.37x2636-41White gains too many pieces. 57.24-13!...Made possible thanks to White's 56th move. 57....22-27Black also gets nowhere after 57...37-4158.13x4341-4759.20-15+-58.13x4236-4159.46x3732x4160.20-1541-4660...41-4761.42-24!61.42-24...
61....46-32The endgame is completely hopeless for Black. To illustrate, here are two variations: 61...28-3262.24-4246-4163.42-37Not the only way to win, but an efficient one. 61...46-4162.15-1041-4763.24-2and now for example 63....28-3264.10-532-38and the elegant 65.48-4238-4366.34-30!47x3567.5-19!35x1368.2x48decides the game. 62.15-1032-1663.10-416-264.24-4728-3265.4-312-19Black understands the hopelessness of continuing and quits.
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