Details about Leela Chalange in Jerusalem

[Uri Blass]

Pavel Chernomordik decided not to play so again there are only 18 players.!

Based on my knowledge all prefer to play against the rook odds in the first game and not against the NN bot.
I will tell them that they cannot decide in the last second about it.

I think I know why he decided not to play. He played 26 blitz games (3'2") with LeelaRookOdds, and lost every one of them! I guess he concluded it was "mission impossible". Eight of the other players have played multiple games with it in the last few days, most players choosing either Rapid or 5'3", some 5'2" or 3'2" (one even played at 90'30"). I count the total non-bullet score (including Pavel) as 1 win, 4 draws, and 184 losses! The only winner was the top rated IM, who scored 1 win and 1 draw in six games at 5'3". So perhaps he is favored in his match, but probably every one else (except perhaps the other IM, who didn't play yet) will be just hoping to get a draw.

The only problem with this theory is that the 26 games he lost were after he decided not to play and not before he decided not to play.

[Uri Blass]

Pavel Chernomordik decided not to play so again there are only 18 players.

Based on my knowledge all prefer to play against the rook odds in the first game and not against the NN bot.
I will tell them that they cannot decide in the last second about it.

the weakest player changed his mind and told me that he agree to play with NN odds if it is going to allow some strong above 2200 players to compete with the rook odds.

I guess it is not going to happen because I do not know about more strong players above 2200 who agree to play with the rook odds.

[Uri Blass]

final list of players and their results

1)IM Yannay Ben Ari fide rating 2457(national rating 2489) age 21 win rook odds ,loss N odds
2)IM Roy Vagman 2377(national rating 2357) age 17 loss rook odds,win rook odds
3)Ilay Zakin 2311(2329) fide master draw rook odds,loss rook odds
4)Maxim Milavsky 2284(2307) means fide rating 2284 national rating 2307(not active recently except one blitz tournament)
A national master 2 losses rook odds
5)Eliran Shilon Rahav 2270(2306) third place in U14 europe championship and has expected fide rating above 2300. national master and also fide master after the next update.
https://s1.chess-results.com/tnr1282645 ... 0&SNode=S0
2 draws rook odds
6)Daniel Iliaguev 2248(2265) 2 losses rook odds
7)Guy Gov 2224(2254) national master loss and win rook odds
8)Itay Sitbon 2169(2211) national master draw and loss rook odds
9)Dana Kochavi 2155(2204) national and fide master draw and loss rook odds
10)Neria Gurevich 2131(2187) 12 years old player senior candidate to national master 2 losses rook odds
11)Yosef Gurevich 2081(2201) senior candidate to national master won rook odds and lost knight odds
12)Itay Tsafrir 2075(2085) candidate to national master loss and draw with rook odds
13)Alon Cohen 2057(2025) candidate to national master draw and loss with rook odds
14)Igor Berenboym 2043(2056) senior candidate to national master 2 losses with rook odds
15)Lior Zakin 1939(1992) loss with rook odds and win with 2 knight odds
16)Hillel Gurevich 1905(2085) candidate to national master loss and draw rook odds(I consider misclick with obvious repetition to be a draw)
17)Oded Ross 0(2082) candidate to national master but unactive loss and win rook odds.
18)Slavik Altman 1716(1756) 2 ranks below candidate master(2 draws for the prize but practically I believe second game could be a loss inspite of drawn position).
19)Eyal Cohen 1671(1832) loss and draw 3 knight odds (misclick in the first game but even without this misclick leela could probably win based on the intentions of the player.

[Father]

Need help to publicize it in english that is not my native language.
Feel free to correct me before I try to give the details in english:

Leela Challenge in Jerusalem:
18 players. 2 games against Leela in a version adapted to play with odds.

Leela without Rook A1 in the first game.
If you did not win then again Rook A1 odds in the second game.
Else Knight Odds when you can choose if to play against Leela Without Knight G1 or without Knight B1

Maximal Prize pool 18000 shekels(18000 only if all humans win twice)

900 shekels for winning the first game and 300 shekels for a draw
If you won the first then 900 shekels for winning the second, and 300 shekels for a draw in the second
If you didn't win the first then 600 shekels for winning the second and 200 shekels for a draw in the second.

Players can win less than the maximal prizes based on number of participants and prizes but I will not reduce the sum of prizes to less than 9000 shekels(for example if all players win twice the prize is going to be 1000 shekel for everyone and not 1800 shekels for everyone) but if all players draw all games then I am not going to reduce the prize to less than 500 shekel for everybody

Special reservation of places for:
Players who will contribute the most to the prize fund (4 places)
Members of the Israeli women's national team
Players who won the previous duel against Komodo Dragon without a knight
Those with the highest international fide rating among the players who register.

Location: Yerushalmi Club, Yohanan Ben Zakkai Street 5, Jerusalem
Game pace 90 minutes plus 30 seconds per move

For details and registration, Dr. Uri Blass 0544544845
Good luck to all competitors.

Good evening, Larry Kaufman and Uriblass. I would very much like, I would love, to be able to watch replays of the matches played by humans against these computer odds. I would be very grateful if you could help me with this. I wish you a good night and a good day. Thanks again.

[Father]

Need help to publicize it in english that is not my native language.
Feel free to correct me before I try to give the details in english:

Leela Challenge in Jerusalem:
18 players. 2 games against Leela in a version adapted to play with odds.

Leela without Rook A1 in the first game.
If you did not win then again Rook A1 odds in the second game.
Else Knight Odds when you can choose if to play against Leela Without Knight G1 or without Knight B1

Maximal Prize pool 18000 shekels(18000 only if all humans win twice)

900 shekels for winning the first game and 300 shekels for a draw
If you won the first then 900 shekels for winning the second, and 300 shekels for a draw in the second
If you didn't win the first then 600 shekels for winning the second and 200 shekels for a draw in the second.

Players can win less than the maximal prizes based on number of participants and prizes but I will not reduce the sum of prizes to less than 9000 shekels(for example if all players win twice the prize is going to be 1000 shekel for everyone and not 1800 shekels for everyone) but if all players draw all games then I am not going to reduce the prize to less than 500 shekel for everybody

Special reservation of places for:
Players who will contribute the most to the prize fund (4 places)
Members of the Israeli women's national team
Players who won the previous duel against Komodo Dragon without a knight
Those with the highest international fide rating among the players who register.

Location: Yerushalmi Club, Yohanan Ben Zakkai Street 5, Jerusalem
Game pace 90 minutes plus 30 seconds per move

For details and registration, Dr. Uri Blass 0544544845
Good luck to all competitors.

Good evening, Larry Kaufman and Uriblass. I would very much like, I would love, to be able to watch replays of the matches played by humans against these computer odds. I would be very grateful if you could help me with this. I wish you a good night and a good day. Thanks again.

** Good evening, Mister Larry Kaufman and Mister Uri Blass. I would very much like, I would love, to be able to watch replays of the matches played by humans against these computer odds. I would be very grateful if you could help me with this. I wish you a good night and a good day. Thanks again, Pablo Ignacio Restrepo

[Uri Blass]

links for the games

https://lichess.org/cZklEcr0
https://lichess.org/Sp1dvJx7
https://lichess.org/LR0absor
https://lichess.org/IFvGDOax
https://lichess.org/DyVsk4kn
https://lichess.org/UUJOqXbQ
https://lichess.org/2iBv6AYg
https://lichess.org/ZA3doEvl
https://lichess.org/Uva4tcd7
https://lichess.org/xXYGF7US
https://lichess.org/v8G8lftq
https://lichess.org/v8G8lftq
https://lichess.org/H64s8I58
https://lichess.org/BXBrdCuh
https://lichess.org/abstxHfM
https://lichess.org/ed2Cc3DE
https://lichess.org/cMMxF0qB
https://lichess.org/BFIEQkWa
https://lichess.org/SxftFixP
https://lichess.org/1K1ZS7q1
https://lichess.org/kVNMdeFv
https://lichess.org/2DodfoJx
https://lichess.org/G7O1j1qI
https://lichess.org/mpgcf9d1
https://lichess.org/BJfNpN0K
https://lichess.org/Z4Oc8Kc0
https://lichess.org/3xomU6B1
https://lichess.org/3rGyKnj4
https://lichess.org/ynJQVQuM
https://lichess.org/dIo3ZBt2
https://lichess.org/r3ApF53O
https://lichess.org/0NHkDMyk
https://lichess.org/MyBfQIlJ
https://lichess.org/Gj8B2LwR
https://lichess.org/3npjdaOt
https://lichess.org/hDalrYC4
https://lichess.org/obVj3veI
https://lichess.org/PLjXMdYo

[Uri Blass]

some comments about game 1 that was against relatively weak player(fide rating below 2000)

I added some comments about positional mistakes and deleted part of the comments when the position was winning for white.

[pgn][Event "casual classical game"]
[Site "https://lichess.org/cZklEcr0"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "skibidyking"]
[Result "1-0"]
[BlackElo "2400"]
[WhiteElo "2400"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "63"]
[WhiteType "human"]
[BlackType "human"]

1. f4 h5? {positional mistake and it is better to develop pieces} (1. ..
d5) 2. d3 d5 3. c3 Nf6 4. Qc2 Bf5 5. Nd2 e6 6. e4 Bh7? {positional mistake
g6 is better for the bishop and dxe4 is also better than this move} 7. Ngf3
Bc5? {A positional mistake better is Be7 or c5 or to trade at e4 before Bc5
so there is no d4 later} 8. Ng5 dxe4 (8. .. Be3 {I prefer this move in
order to trade bishops or to capture f4 or to get activity} 9. e5 (9. g3
dxe4 10. dxe4 Nc6) 9. .. Ng4 10. Nxh7 Rxh7 11. d4 g6) 9. Nxh7 Rxh7 (9. ..
Nxh7 {this move is probably better not to lose the option of short castle})
10. d4 Be7 (10. .. Bb6 {this move is probably slightly better and the black
queen may go later to e7 to be more active}) 11. Nxe4 Nbd7 (11. .. g6 12.
Ng5 Rg7) (11. .. Nxe4 12. Qxe4 g6 13. Qxb7 Nd7) 12. Ng5 Rh8 13. Bd3 Nf8?
(13. .. Nd5 14. O-O (14. Nf3 c5) 14. .. Bxg5 15. fxg5 Qe7) 14. O-O Nd5 15.
Qb3 Nb6 16. a4 a5 17. Be4 Ra7? (17. .. Rb8 18. Qb5+? c6 19. Qxa5? Ra8 20.
Qe5 Bf6) 18. Kh1 Nd5? (18. .. Qd7) 19. c4 Nb6? (19. .. Nb4) 20. Be3 f6?
{Big Mistake. This move does not activate the pieces and there were some
other options to do it} (20. .. Rh6 21. d5 exd5 22. cxd5 Qd6 23. Bd4 Rf6
24. g3 Ra6 25. Re1 Qb4 26. Qe3) (20. .. Qd7) (20. .. Bxg5 21. fxg5 Qe7) 21.
c5 Nc4?? {Blunder. fxg5 was best. white is now winning(more than +3 based
on stockfish)} (21. .. fxg5 22. cxb6 Ra6 23. d5 Rxb6 24. Bxb6 cxb6 25. dxe6
Qd6 26. Rd1 Qc5 27. fxg5 Bxg5 28. Qf3 Bf6 {is a forced line that is winning
with a correct play but is hard to find and hard to win even after it} 29.
Bd3 Nxe6 30. Qxb7 Rh6 31. Bb5+ Kf8 32. Qa8+ Bd8 33. Rxd8+ Nxd8 34. Qxd8+
Kf7) 22. Nxe6 Nxe6 23. Qxc4 Nf8 24. d5 Ra6?! {Black offers draw} (24. ..
Ra8 25. Re1) 25. Re1? {d6 was best but the move is also winning.} (25. d6
Bxd6 26. cxd6 Rxd6 27. Bc5 Rd1 28. Bg6+ Nxg6 29. Qe2+ Qe7 30. Bxe7 Rxf1+)
25. .. Qc8? {f5 was best chance but also losing with correct play.} (25. ..
f5) 26. Bd4 h4 27. h3 Kd8? 28. Qe2 Nd7?! 29. Bf5 Re8 30. Qh5 Qa8?! 31.
Qf7 Qc8 32. Bg6 {. Black resigns} 1-0
[/pgn]

[Uri Blass]

some analysis of game 2

[pgn][Event "casual classical game"]
[Site "https://lichess.org/Sp1dvJx7"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "jeruchess"]
[Result "1/2-1/2"]
[BlackElo "2400"]
[WhiteElo "2400"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "79"]
[WhiteType "human"]
[BlackType "human"]

1. e4 d5 2. exd5 Nf6 3. Nf3 c6 4. dxc6 Nxc6 5. Bc4 Bg4 6. h3 Bxf3 7. Qxf3
e6 8. Qe2 Bd6 (8. .. Nd4 {is more active and I think better}) 9. c3 Qc7 10.
Bb3? (10. O-O) 10. .. Nd4! 11. Ba4+ b5 12. Bxb5+ Nxb5 13. Qxb5+ Qd7 14.
Qxd7+ Nxd7 (14. .. Kxd7 {I prefer the king to help blocking the passed
pawns}) 15. Kd1 e5 16. d3 O-O 17. Kc2 f5 18. b3 Nc5 19. b4 Ne6 20. Nd2 a5
21. a3 axb4 22. axb4 e4 23. dxe4 Bf4 (23. .. Rfc8) 24. exf5 Bxd2 (24. ..
Rxf5) 25. Bxd2 Ra2+ 26. Kb3 Rxd2 27. fxe6 Ra8 (27. .. Rfxf2) 28. f4 Rxg2
29. b5 Re2 30. c4 Rxe6 31. Rc1 Rb8 32. Kb4 Re4 33. Ka5 Rxf4?! {(-3.47 ?
-2.63) Inaccuracy. Re2 was best.} (33. .. Re2 34. Kb4 Kf7 35. h4 h5 36. Kc3
Re4 37. Rb1 Rc8 38. b6 Rexc4+ 39. Kd3) 34. b6 Rf2 (34. .. Rf3 35. c5 Rxh3
{white cannot prevent sacrificing the rook for the 2 passed pawns so it is
a win for black.}) 35. c5 Rb2 36. Ka6 Ra2+ 37. Kb5 Rb2+ 38. Ka6 Ra2+ 39.
Kb5 Rb2+?? {(-1.94 ? 0.00) Blunder. g6 was best.} (39. .. g6 40. Rb1 (40.
Kc6 Rb2 41. Kc7 Rf8 42. Kb7 Rf7+ 43. Ka6 Rf4 44. c6 Ra4+ 45. Kb7 Rab4) 40.
.. Rc2 41. c6 Rc8 42. b7 R2xc6 {and rook and 2 pawns win against rook and
one pawn because the king is far from the pawns.} 43. Re1 R6c7 44. bxc8=Q+
Rxc8 45. h4 Kf7 46. h5 Kg7 (46. .. gxh5) 47. hxg6) 40. Ka6 {The game is a
draw.} 1/2-1/2
[/pgn]

[Uri Blass]

some analysis of game 3

[pgn][Event "casual classical game"]
[Site "https://lichess.org/LR0absor"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "eilel1"]
[Result "1-0"]
[BlackElo "2000"]
[WhiteElo "2200"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "33"]
[WhiteType "human"]
[BlackType "human"]

1. e4! d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Bc4 Nf6 5. Nf3 Nc6 6. d4 Bg4 7. d5
Bxf3 8. gxf3 Ne5 (8. .. Na5 {to trade pieces is better} 9. Be2 e6 {when
black trades queens or wins the d5 pawn}) 9. Bb3 a6 10. O-O g6 (10. .. Qd7
{is better with the ideas Qf5 or f4 Qg4+when after the game move the black
queen is not active}) 11. Re1 Ned7 12. Bf4 Nh5 13. Qd2 Nxf4 (13. .. Nc5
{with the threats Nxb3 or Nxf4 Qxd4 Qd6 is better}) 14. Qxf4 Nf6?? {A
losing mistake . Bg7 was better bur it also lose material.} (14. .. Bg7 15.
d6 e6 16. Nd5 Be5 17. Rxe5 cxd6) 15. Qxf6 Rg8 16. Ba4+ c6 17. Bxc6+ {.
Black resigns} 1-0
[/pgn]

[Father]

some comments about game 1 that was against relatively weak player(fide rating below 2000)

I added some comments about positional mistakes and deleted part of the comments when the position was winning for white.

[pgn][Event "casual classical game"]
[Site "https://lichess.org/cZklEcr0"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "skibidyking"]
[Result "1-0"]
[BlackElo "2400"]
[WhiteElo "2400"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "63"]
[WhiteType "human"]
[BlackType "human"]

1. f4 h5? {positional mistake and it is better to develop pieces} (1. ..
d5) 2. d3 d5 3. c3 Nf6 4. Qc2 Bf5 5. Nd2 e6 6. e4 Bh7? {positional mistake
g6 is better for the bishop and dxe4 is also better than this move} 7. Ngf3
Bc5? {A positional mistake better is Be7 or c5 or to trade at e4 before Bc5
so there is no d4 later} 8. Ng5 dxe4 (8. .. Be3 {I prefer this move in
order to trade bishops or to capture f4 or to get activity} 9. e5 (9. g3
dxe4 10. dxe4 Nc6) 9. .. Ng4 10. Nxh7 Rxh7 11. d4 g6) 9. Nxh7 Rxh7 (9. ..
Nxh7 {this move is probably better not to lose the option of short castle})
10. d4 Be7 (10. .. Bb6 {this move is probably slightly better and the black
queen may go later to e7 to be more active}) 11. Nxe4 Nbd7 (11. .. g6 12.
Ng5 Rg7) (11. .. Nxe4 12. Qxe4 g6 13. Qxb7 Nd7) 12. Ng5 Rh8 13. Bd3 Nf8?
(13. .. Nd5 14. O-O (14. Nf3 c5) 14. .. Bxg5 15. fxg5 Qe7) 14. O-O Nd5 15.
Qb3 Nb6 16. a4 a5 17. Be4 Ra7? (17. .. Rb8 18. Qb5+? c6 19. Qxa5? Ra8 20.
Qe5 Bf6) 18. Kh1 Nd5? (18. .. Qd7) 19. c4 Nb6? (19. .. Nb4) 20. Be3 f6?
{Big Mistake. This move does not activate the pieces and there were some
other options to do it} (20. .. Rh6 21. d5 exd5 22. cxd5 Qd6 23. Bd4 Rf6
24. g3 Ra6 25. Re1 Qb4 26. Qe3) (20. .. Qd7) (20. .. Bxg5 21. fxg5 Qe7) 21.
c5 Nc4?? {Blunder. fxg5 was best. white is now winning(more than +3 based
on stockfish)} (21. .. fxg5 22. cxb6 Ra6 23. d5 Rxb6 24. Bxb6 cxb6 25. dxe6
Qd6 26. Rd1 Qc5 27. fxg5 Bxg5 28. Qf3 Bf6 {is a forced line that is winning
with a correct play but is hard to find and hard to win even after it} 29.
Bd3 Nxe6 30. Qxb7 Rh6 31. Bb5+ Kf8 32. Qa8+ Bd8 33. Rxd8+ Nxd8 34. Qxd8+
Kf7) 22. Nxe6 Nxe6 23. Qxc4 Nf8 24. d5 Ra6?! {Black offers draw} (24. ..
Ra8 25. Re1) 25. Re1? {d6 was best but the move is also winning.} (25. d6
Bxd6 26. cxd6 Rxd6 27. Bc5 Rd1 28. Bg6+ Nxg6 29. Qe2+ Qe7 30. Bxe7 Rxf1+)
25. .. Qc8? {f5 was best chance but also losing with correct play.} (25. ..
f5) 26. Bd4 h4 27. h3 Kd8? 28. Qe2 Nd7?! 29. Bf5 Re8 30. Qh5 Qa8?! 31.
Qf7 Qc8 32. Bg6 {. Black resigns} 1-0
[/pgn]

Good evening, Mr. Uri Blass and Mr. Larry Kaufman.
I, a simple chess lover, currently in "airplane mode" and "hibernation mode," sincerely thank you for the immense contribution you have made to what, from my perspective, I value as "the dissemination, promotion, enthusiasm, and construction of the takeoff phase" and propulsion of the Odds project. I still have a feeling that the dinner I dream of, with the 20 best human players seated at the table with LeelaOdds and my dear QueenOdds, will become a reality. Please allow Catecan and me, with all humility, to raise a glass and toast you all.